In cooperation with the New Mexico Department of Transportation 

Analysis of the Magnitude and Frequency 

of Peak Discharge and Maximum Observed 

Peak Discharge in New Mexico and 

Surrounding Areas 

Scientific Investigations Report 2008–5119 

U.S. Department of the Interior 

U.S. Geological Survey 
Blank Page
Analysis of the Magnitude and Frequency 

of Peak Discharge and Maximum Observed 

Peak Discharge in New Mexico and 

Surrounding Areas

By Scott D. Waltemeyer

In cooperation with the New Mexico Department of Transportation

Scientific Investigations Report 2008–5119

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

DIRK KEMPTHORNE, Secretary

U.S. Geological Survey

Mark D. Myers, Director

U.S. Geological Survey, Reston, Virginia: 2008

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Suggested citation:

Waltemeyer, S.D., 2008, Analysis of the magnitude and frequency of peak discharge and maximum observed peak 

discharge in New Mexico and surrounding areas: U.S. Geological Survey Scientific Investigations Report 2008–5119, 

105 p. 
iii

Contents

Abstract ..........................................................................................................................................................1

Introduction ....................................................................................................................................................1

Purpose and Scope .............................................................................................................................4

Description of Study Area ..................................................................................................................4

Analysis of Magnitude and Frequency of Peak Discharges .................................................................4

Station Flood-Frequency Analysis ....................................................................................................5

Regional Flood-Frequency Analysis .................................................................................................5

Determination of Basin and Climatic Characteristics ..........................................................6

Geographic Information System .....................................................................................6

Basin and Climatic Characteristics ................................................................................6

Development of Generalized Least-Squares Regression Equations .................................8

Improvement of Estimates at Gaging Stations .....................................................................10

Limitations and Accuracy of Regression Equations ...........................................................11

Estimate of Magnitude and Frequency of Peak Discharges at Ungaged Sites ......................11

Ungaged Site on an Ungaged Stream ...................................................................................11

Ungaged Site on a Stream Having a Nearby Gaging Station ............................................11

Analysis of Maximum Observed Peak Discharge .................................................................................12

Future Data Needs and Network Improvements ...................................................................................12

Summary .......................................................................................................................................................23

References Cited .........................................................................................................................................23

Appendixes 

1. Selected Basin, Climatic, and Flood Characteristics; Maximum Peak Discharge 

Recorded; and Low-Discharge Threshold for Gaging Stations .........................................27

2. Basin and Climatic Characteristics Determined Using Geographical Information 

System .........................................................................................................................................75

3. Miscellaneous Sites, Maximum Peak Discharge, Drainage Area, and Site 

Elevations ....................................................................................................................................89

Figures

1. Maps showing flood regions and locations of gaging stations in New Mexico 

and surrounding areas ................................................................................................................2

2. Map showing flood regions and location of miscellaneous sites in New Mexico 

and surrounding areas ..............................................................................................................13

3–11. Envelope curve comparing maximum observed peak discharge to drainage area 

in the: 

3. Northeast plains flood region 1 ......................................................................................14

4. Northwest plateau flood region 2 ..................................................................................15

5. Southeast mountain flood region 3 ................................................................................16

6. Southeast plains flood region 4 ......................................................................................17

7. Northern mountain flood region 5 ..................................................................................18

8. Central mountain valley flood region 6 ..........................................................................19

9. Southwest desert flood region 7 ....................................................................................20
iv

10. Southwest mountain flood region 8 ...............................................................................21

11. Northern Arizona flood region 9 .....................................................................................22

Tables

1. Range of statistically significant basin and climatic characteristics selected for 

use in the regression analysis ...................................................................................................8

2. Regional flood-frequency equations using generalized least-squares regression .........9

Conversion Factors and Datum

Multiply By To obtain

Length

inch (in.) 25.40 millimeter (mm)

foot (ft) 0.3048 meter (m)

mile (mi) 1.609 kilometer (km)

square mile (mi2

) 2.590 square kilometer (km2)

cubic foot per second (ft3

/s) 0.02832 cubic meter per second (m3/s)

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 

(NGVD 29) or the North American Vertical Datum of 1988 (NAVD 88).

Elevation, as used in this report, refers to distance above the vertical datum.
Abstract

Estimates of the magnitude and frequency of peak 

discharges are necessary for the reliable design of bridges, 

culverts, and open-channel hydraulic analysis, and for floodhazard mapping in New Mexico and surrounding areas. The 

U.S. Geological Survey, in cooperation with the New Mexico 

Department of Transportation, updated estimates of peakdischarge magnitude for gaging stations in the region and 

updated regional equations for estimation of peak discharge 

and frequency at ungaged sites.

Equations were developed for estimating the magnitude 

of peak discharges for recurrence intervals of 2, 5, 10, 25, 50, 

100, and 500 years at ungaged sites by use of data collected 

through 2004 for 293 gaging stations on unregulated streams 

that have 10 or more years of record.

Peak discharges for selected recurrence intervals were 

determined at gaging stations by fitting observed data to a 

log-Pearson Type III distribution with adjustments for a 

low-discharge threshold and a zero skew coefficient. A lowdischarge threshold was applied to frequency analysis of 

140 of the 293 gaging stations. This application provides an 

improved fit of the log-Pearson Type III frequency distribution. Use of the low-discharge threshold generally eliminated 

the peak discharge by having a recurrence interval of less than 

1.4 years in the probability-density function.

Within each of the nine regions, logarithms of the maximum peak discharges for selected recurrence intervals were 

related to logarithms of basin and climatic characteristics by 

using stepwise ordinary least-squares regression techniques for 

exploratory data analysis. Generalized least-squares regression 

techniques, an improved regression procedure that accounts 

for time and spatial sampling errors, then were applied to the 

same data used in the ordinary least-squares regression analyses. The average standard error of prediction, which includes 

average sampling error and average standard error of regression, ranged from 38 to 93 percent (mean value is 62, and 

median value is 59) for the 100-year flood. The 1996 investigation standard error of prediction for the flood regions ranged 

from 41 to 96 percent (mean value is 67, and median value is 

68) for the 100-year flood that was analyzed by using generalized least-squares regression analysis. Overall, the equations 

based on generalized least-squares regression techniques are 

more reliable than those in the 1996 report because of the 

increased length of record and improved geographic information system (GIS) method to determine basin and climatic 

characteristics.

Flood-frequency estimates can be made for ungaged 

sites upstream or downstream from gaging stations by using a 

method that transfers flood-frequency data at the gaging station to the ungaged site by using a drainage-area ratio adjustment equation. The peak discharge for a given recurrence 

interval at the gaging station, drainage-area ratio, and the 

drainage-area exponent from the regional regression equation 

of the respective region is used to transfer the peak discharge 

for the recurrence interval to the ungaged site.

 Maximum observed peak discharge as related to drainage area was determined for New Mexico. Extreme events are 

commonly used in the design and appraisal of bridge crossings 

and other structures. Bridge-scour evaluations are commonly 

made by using the 500-year peak discharge for these appraisals. Peak-discharge data collected at 293 gaging stations and 

367 miscellaneous sites were used to develop a maximum 

peak-discharge relation as an alternative method of estimating 

peak discharge of an extreme event such as a maximum probable flood. 

Introduction

Estimates of the magnitude and frequency of peak 

discharges in unregulated streams at gaging stations or at 

ungaged stream sites in New Mexico and surrounding areas 

(fig. 1) are necessary for reliable design of bridges, culverts, 

drainage structures, and open-channel hydraulic analysis and 

for flood-hazard mapping. Construction to accommodate discharge equal to the 50-year recurrence interval is required by 

the New Mexico Department of Transportation (NMDOT) for 

bridge and culvert design (New Mexico Department of Transportation, 1995). Use of a peak discharge with a 100-year 

recurrence interval is mandated by the Federal Emergency 

Management Agency (FEMA) for mapping flood-hazard areas 

Analysis of the Magnitude and Frequency of Peak 

Discharge and Maximum Observed Peak Discharge 

in New Mexico and Surrounding Areas

By Scott D. Waltemeyer
2 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 1. Flood regions and locations of gaging stations in New Mexico and surrounding areas. 

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Flood region boundary—Region number referenced in table 1

Gaging station and identifier (referenced in appendix 1), by elevation

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Introduction 3

Figure 1.—Continued.

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Flood region boundary—Region number referenced in table 1

Gaging station and identifier (referenced in appendix 1), by elevation

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7,650–7,999 feet

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3 2 1
4 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

for housing development (Federal Emergency Management 

Agency, 2002). The magnitude of a peak discharge with a 

100-year recurrence interval has an annual exceedance frequency of 1 percent and occurs, on average, at least once 

in a 100-year period. The U.S. Geological Survey (USGS), 

in cooperation with the NMDOT, updated estimates of peakdischarge magnitude for gaging stations in the region and 

updated regional equations for estimation of peak-discharge 

magnitude and frequency at ungaged sites.

The most recent publication for estimating magnitude 

and frequency of peak discharge for New Mexico and surrounding areas was completed in 1996 (Waltemeyer, 1996). 

Waltemeyer (1996) included analysis of flood data collected 

for 201 gaging stations from the beginning of record through 

1993 and presented equations for estimation of peak discharges for various frequencies at ungaged sites based on 

basin and climatic characteristics for eight physiographic 

regions. Region boundaries in this report now extend into 

Arizona and Utah and to basin divides; the extension has 

expanded the number of gaging stations from 201 to 293. 

The flood regions were delineated on the basis of the hydrologic unit codes from the 1996 investigation (Waltemeyer, 

1996) and were expanded into the four corners area (Arizona, 

Utah, Colorado, and New Mexico). Waltemeyer (1996) and 

Thomas and others (1997) determined that the use of zero 

for the generalized skew coefficient and a low-discharge 

threshold improved the fit of the log-Pearson Type III distribution to recorded peak-discharge data first for New Mexico and

then for the Southwestern United States. In addition to the 

investigation by Waltemeyer (1996), another statistical regression analysis approach—generalized least-squares (Stedinger 

and Tasker, 1985)—also has statistically improved estimation 

of regional flood-frequency relations and is used in this 

report.

Purpose and Scope 

This report presents updated estimates of the magnitude 

and frequency of peak discharges at gaging stations based on 

11 additional years of data collected since Waltemeyer (1996) 

developed equations for estimates of magnitude and frequency 

of peak discharges at ungaged sites. The report presents new 

and updated basin and climatic characteristics and uses a 

geographic information system (GIS) (raster modeling) and 

the National Elevation Dataset. The magnitudes of peak discharges were determined for recurrence intervals of 2, 5, 10, 

25, 50, 100, and 500 years for 293 gaging stations on unregulated streams that generally have 10 or more years of record 

(data collected through 2004). The report also includes equations for nine flood regions for estimation of peak discharges 

at ungaged sites and a discussion of substantial improvements 

in the prediction error of the regression models. Maximum 

observed peak discharges collected by USGS through 2004 

are presented in relation to drainage area to develop envelope 

curves.

Description of Study Area

The physiography of New Mexico is varied and complex 

and includes mountains, plains, plateaus, valleys, and deserts. 

The Rocky Mountains end in northern New Mexico, creating 

a marked climatological division in the north-central part of 

the State. Several flat desert areas are interspersed between the 

mountains, and some of these areas are lake deposits that have 

not been covered with water for hundreds of years. Many of 

the plains contain distributary-flow areas that consist of material deposited by mountain-front runoff (Thomas and others, 

1997). Mainstem streams such as the Rio Grande and Canadian, Pecos, and San Juan Rivers originate in Colorado.

Storms that originate in the Pacific Ocean travel over the 

mountains and progressively intensify in the plains of New 

Mexico. For example, isopluvials of annual maximum precipitation indicate a pattern of increasing intensity in the eastern 

plains (Miller and others, 1973). Also, storms that originate 

in the Pacific Ocean travel over the mountains and locally 

intensify in the plains region of the four corners area. Regional 

thunderstorms develop over the mountains during early and 

late summer. The greatest monthly precipitation and localized 

areas of rainfall typically occur in July and August. Intense, 

convective midsummer storms that commonly are preceded by 

mild rainfall can produce severe flooding.

Storms that originate in the Gulf of Mexico during the 

summer period affect the eastern half of New Mexico. Intense 

rainfall during the summer is usually due to moisture from 

the Gulf of Mexico. Regional thunderstorms develop over the 

mountains during early and late summer, which can cause rare 

or unusual flooding, whereas annual peak discharge is a result 

of snowmelt runoff. Substantial floods, such as the early summer flood of 1965 and the early fall flood of 1904 (U.S. Geological Survey, 1991), have occurred during those seasons, but 

the greatest monthly precipitation, although mostly of irregular 

regional extent, typically occurs in July and August.

Floods in the northern, southeastern, and southwestern 

mountain regions are produced generally by snowmelt, sometimes by rainfall, and rarely by rainfall on snowpack. Floods 

in the plains, plateaus, valleys, and deserts almost always are 

produced by rainfall.

Analysis of Magnitude and Frequency 

of Peak Discharges 

Peak-discharge data collected at crest-stage gages and 

continuously recording gaging stations were used to estimate 

the magnitude and frequency of peak discharges by using a 

log-Pearson Type III probability distribution (Interagency 

Advisory Committee on Water Data, 1982). The peakdischarge characteristics at the gaging stations were related to 

basin and climatic characteristics by using generalized leastsquares (GLS) regression analyses.
Analysis of Magnitude and Frequency of Peak Discharges 5

Station Flood-Frequency Analysis 

Peak-discharge data at gaging stations consist of a period 

of gaged record through 2004 of annual peak discharges, 

referred to as the systematic record, and stations with one 

or more historic, extreme discharges outside the systematic 

record (Interagency Advisory Committee on Water Data, 

1982). Relating the magnitudes of annual peak discharges, 

generally referred to as flood-frequency data or characteristics, to their expected frequency of exceedance, is termed a 

flood-frequency analysis. The frequency of peak discharges 

generally is expressed in terms of exceedance probability or 

recurrence intervals. Exceedance probability is the probability 

that a flood will exceed a given magnitude in any year. Recurrence interval, in years, is the reciprocal of the exceedance 

probability. For example, a flood with an exceedance probability of 0.01 has a recurrence interval of 100 years. The term 

“recurrence interval” is used in this report for simplicity.

Peak discharges for selected recurrence intervals were 

determined for each of 293 gaging stations by using the logPearson Type III probability distribution as recommended by 

the Interagency Advisory Committee on Water Data (1982). 

Various adjustments for low outliers, zero-flow years, historic 

peak discharges, user-defined low-discharge threshold, and a 

user-defined generalized coefficient of skewness were applied 

to station data where applicable.

Floods in the United States are derived mainly from four 

different populations: rainfall, snowmelt runoff, rain on snowpack, and remnants of hurricanes or tropical storms. For New 

Mexico, some outliers existed in the annual peak-discharge 

series, a condition that most likely was caused by a population 

other than the normal population; however, an adequate number of annual peak-discharge data to define these rare populations was not recorded to date (2004) for any of the gaging 

stations in the study area. In New Mexico, annual peak discharges caused by annual snowmelt runoff from mountainous 

regions and annual peak discharges caused by annual rainfall 

runoff from convective thunderstorms are the most common. 

Annual peak discharges caused by annual rainfall runoff from 

infrequent remnants of hurricanes or tropical storms are the 

rare populations. Composite frequency analysis is required 

for some sites that have mixed populations. Crippen (1978) 

described techniques for making a composite analysis primarily from two populations of annual peak discharges, those 

caused by snowmelt runoff and by rainfall runoff. The populations that cause floods were described in “National Water 

Summary 1988–89” (U.S. Geological Survey, 1991). In New 

Mexico, only a few gaging stations have recorded extreme 

peak discharges that plot as high outliers from the main distribution. Data on the separate sample populations for these rare 

storms are inadequate; thus, a composite frequency analysis 

could not be performed.

The low-discharge threshold was used in investigations of flood frequency in the Southwestern United States 

by Waltemeyer (1996) and Thomas and others (1997). The 

user-defined low-discharge threshold is based on the rationale 

that, in some instances, discharges less than some threshold 

value are not from the same population of peak discharges as 

are the larger peak discharges. A probability-density-function 

plot of annual-series data indicates that these low discharges 

have a different slope than do the larger peak discharges. As a 

result, the overall fit of the probability distribution is affected, 

and peak discharges for large recurrence intervals tend to be 

underestimated when the low discharges are included. The 

low-discharge threshold was determined graphically from the 

probability-density-function plots and applied to the frequency 

analysis of 140 of the 293 gaging stations (fig. 1; app. 1). 

Use of the low-discharge threshold generally eliminated the 

peak discharges that had recurrence intervals of less than 

1.4 years.

The skew coefficient used in the log-Pearson Type III 

analysis is a weighted value determined by weighting the 

station skew with a generalized skew in inverse proportion 

to their individual mean-square errors (Interagency Advisory 

Committee on Water Data, 1982). In this report, a generalized skew based on research in prior investigations is used. 

The station skew used in an investigation in New Mexico 

(Waltemeyer, 1986) ranged from -0.22 to 0.29 log units for 

the physiographic regions; previous investigations have 

reported the median for most of the regions to be close to zero 

(Waltemeyer, 1986). An investigation of flood frequency for 

the Southwestern United States (Thomas and others, 1997) 

also used zero for the generalized skew. Results from the 

investigation indicated that the mean-square error of generalized skew was 0.31; the same mean-square error was considered to be applicable for the investigation described in this 

report. Accordingly, the generalized skew for the nine flood 

regions was considered to be zero for this investigation. 

The USGS computer program PEAKFQ (Kirby, 1981) 

was used to perform the flood-frequency analyses. Peakdischarge data and basin and climatic characteristics were 

determined from the NWISWeb (U.S. Geological Survey, 

2001) and GIS Weasel computerized systems (U.S. Geological 

Survey, 2000) and entered into the ANNIE data-management 

program (Lumb and others, 1990) for analysis. Selected basin, 

climatic, and flood characteristics for each station are listed in 

appendixes 1 and 2.

Regional Flood-Frequency Analysis

Regionalization of flood-frequency characteristics with 

basin and climatic characteristics is necessary to estimate 

peak discharge at ungaged sites (New Mexico Department 

of Transportation, 1995). The magnitude of peak discharge 

is influenced by the basin and climatic characteristics of a 

physiographic region. In Waltemeyer (1996), different flood 

characteristics are identified in eight flood regions. The current investigation identifies nine flood regions, which include 

expanded areas in the four corners area.

Peak flows in regions 3, 5, and 8 (elevations generally 

greater than 7,500 ft) are predominately in response to 
6 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

snowmelt runoff (Jarrett and Costa, 1982). Most of the gaging 

stations used to develop the equations for flood region 8 have 

an average basin elevation generally above 7,500 feet and are 

in flood region 9 (with four gaging-station locations south 

of the flood region 9 boundary) and in flood region 2. The 

general lack of gaging stations in flood region 8 required the 

investigation of gaging stations in the intermountain region of 

Utah and Arizona that would be used to statistically represent 

flood response from flood region 8. The few gaging stations 

in flood region 8 reflect the same sample population of the 

gaging stations in flood regions 2 and 9 generally above 7,500 

feet. In this report, generally grouping above 7,500 feet was 

shown to depict the elevation distribution of stations available 

for use in the model equations. A range from 7,650 to about 

8,000 feet and above 8,000 feet was selected to indicate the 

number of gaging stations in those strata. In addition, the gaging stations below 7,650 feet also are shown (fig. 1).

Peak flows in regions 1, 2, 4, 6, 7, and 9 are predominately in response to rainfall runoff. The boundary of the 

regions generally corresponds to the hydrologic unit code 

defined by the USGS (Seaber and others, 1987). The regional 

equations for the nine flood regions were developed with the 

intent to explain flood response by using selected basin and 

climatic characteristics. Within each region, a certain proportion of flood response is unexplained variation, largely due 

to basin and climatic characteristics that are not measured or 

used in the regional equations.

Ordinary least-squares (OLS) regression techniques 

(Minitab, Inc., 2003) were used to determine the most appropriate basin and climatic characteristics. GLS regression 

analysis (Stedinger and Tasker, 1985) was used to determine 

the values of the regression constant and regression coefficients and the error terms of the regression equations.

Determination of Basin and Climatic 

Characteristics

Regional equations commonly are used for estimating the 

magnitude and frequency of peak discharges at locations that 

have no streamflow data. Equations have been developed from 

a regression analysis, in which peak discharges for recurrence 

intervals determined at gaging stations are related to basin and 

climatic characteristics. 

Geographic Information System

Basin and climatic characteristics were computed by use 

of an ARC/INFO GIS (ESRI, 1999) and algorithms in the GIS 

Weasel developed by the USGS (U.S. Geological Survey, 2000 

and Viger and Leavesley, 2007). A graphical user interface 

based on ARC/INFO, arc macro language (AML) scripts, and 

C++ programming language is used in GIS Weasel. The operation of the GIS Weasel does not require GIS expertise, but 

knowledge of ARC/INFO is helpful in changing the geographical projections from decimal degrees to other projections and 

in merging grids. The GIS Weasel online computer program 

(U.S. Geological Survey, 2000) was used to derive basin and 

climatic characteristics from raster data. A GRID subsystem 

of ARC/INFO is used by the GIS Weasel to discretize coverages (vector data) into grids of cells with specific dimensions 

(for example, 85 ft by 85 ft) and to assign a data value to each 

grid cell. The grid of data values represents some aspect of 

the discretized coverage, such as elevation or precipitation. 

The data values can be manipulated by applying mathematical operations to individual cells to the whole grid, or by 

combining two or more grids. The GIS Weasel operates on a 

Unix or Windows NT platform and is available for downloading at http://wwwbrr.cr.usgs.gov/projects/SW_precip_runoff/

software/weasel_s/weasel.shtml, accessed June 19, 2007. 

Coverages of vector data were converted to raster data by 

discretizing coverages into a regularly spaced grid. The rasterization of the vector data or the use of raster data herein is 

referred to as “raster modeling.” Grid cells were assigned data 

values that represent geospatial characteristics.

Basin and Climatic Characteristics

The following basin and climatic characteristics 

were determined with raster modeling by using GIS Weasel 

(app. 1 and app. 2): average basin mean annual precipitation (1961–90); average basin mean winter precipitation 

(1961–90); average basin maximum 24-hour and 6-hour 

precipitation for 100-year recurrence interval by using 

National Oceanic and Atmospheric Administration (NOAA) 

Atlas 2 (Miller and others, 1973) and Atlas 14 (Bonnin and 

others, 2004); average basin slope; drainage area; average 

basin elevation; and average basin aspect. Existing basin and 

climatic characteristics also were available from the USGS 

Water-Data Storage and Retrieval System (WATSTORE) 

computerized data system (Dempster, 1981, 1983). Existing 

data values for the basin and climatic characteristics were not 

used in the analysis because the only other significant characteristics in previous reports were average channel elevation 

and mean minimum January temperature. The average basin 

slope determined in this investigation reduces the unexplained 

variation more than the average channel elevations. Only two 

points are used for average channel elevations (10 and 85 percent of stream length), whereas many grid cell points are used 

for basin slope (roughly every 30 m) for an average. January 

temperature characteristic was considered to be an inherent 

characteristic in average basin elevation.

The National Elevation Dataset (NED) is a USGS raster 

product (U.S. Geological Survey, 1999) designed to provide 

national elevation data in a seamless form with a consistent 

datum, elevation unit, and cartographic projection. “Seamless” means that all 7.5-minute quadrangles for each State can 

be compiled into a single coverage or layer. Data corrections 

were made in the NED assembly process to minimize artifacts, 

permit edge matching, and fill sliver areas of missing data. The 

NED has a resolution of 1 arc-second (approximately 30 m 

or 91 ft) for the conterminous United States. For example, the 

New Mexico 7.5-minute, 30-m NED actual cell size is 28 m 

(85 ft). In the NED assembly process, the elevation values 
Analysis of Magnitude and Frequency of Peak Discharges 7

were converted to decimal meters as a consistent unit of 

measure, the North American Datum of 1983 consistently was 

used as a horizontal datum, and all data were recast in a geographic projection of decimal degrees. The Web page describing the NED is available at http://ned.usgs.gov, accessed June 

19, 2007.

The GIS Weasel (U.S. Geological Survey, 2000) is used 

for the preparation of spatial information for input to merged 

and distributed parameter physical-process models. Tools 

within GIS Weasel are provided to delineate, characterize, 

modify, and parameterize “model response units” (MRUs) 

within a geographical area; in this report, the area is the watershed or drainage area. An MRU in a watershed typically is 

used to represent an area that is characterized or attributed to 

estimate a uniform physical hydrologic process. Selected basin 

and climatic characteristics were computed for each watershed 

(average basin mean annual precipitation, average basin mean 

winter precipitation, average basin maximum 24-hour and 

6-hour precipitation for 100-year recurrence interval determined by using NOAA Atlas 2 (Miller and others, 1973) and 

14 (Bonnin and others, 2004), average basin slope, drainage 

area, average basin elevation, and average basin aspect) using 

a single MRU for each watershed. The 7.5-minute digital 

elevation models (DEMs) of the NED were used for Arizona, 

Utah, Colorado, and New Mexico. The mean annual and 

winter precipitation grids were composed for the four corner 

States by using data developed by Daly and others (1994). A 

point coverage (latitude and longitude) was developed for the 

gaging-station locations listed in appendix 1.

Drainage area (DA), in square miles, typically is determined by planimetering the delineated area on the largest scale 

topographic maps available (generally the 7.5-minute quadrangles, 1:24,000 scale). In this investigation, DA was determined 

by raster modeling that used 7.5-minute, 30-m DEMs. Average 

basin mean winter precipitation (Pw) and average basin mean 

annual precipitation (Pa) (1961–90, in inches) were averaged 

for each basin by raster modeling that used a 4-km (2.5-mi) 

grid developed by Daly (1998 a, b, c, and d) for Arizona, Utah, 

Colorado, and New Mexico. Average basin slope (S), in percent, was averaged for each basin by raster modeling that used 

the grid cells of the 7.5-minute, 30-m DEMs. Average basin 

aspect (A), in degrees from north, was averaged for each basin 

by raster modeling that used the grid cells of the 7.5-minute, 

30-m DEMs. Average basin elevation (E), in feet, was averaged for each basin by raster modeling that used the grid cells 

of the 7.5-minute, 30-m DEMs.

Estimates of mean monthly and mean annual precipitation for 1961–90 have been developed for 4-km (2.5-mi) 

grid cells by Daly (1998 a, b, c, and d) for Arizona, Utah, 

Colorado, and New Mexico by using the Parameter-Elevation 

Regressions on Independent Slopes Model (PRISM) presented 

by Daly and others (1994). PRISM estimates are based on all 

available point data, including the high-elevation precipitation 

data from the Natural Resources Conservation Service data 

collection at http://www.nm.nrcs.usda.gov, accessed January 

31, 2008, and a DEM to account for the effects of topography 

through station weighting and simple linear regression of precipitation and elevation. The mean monthly precipitation raster 

datasets are available at http://www.ocs.orst.edu/prism/prism_

new.html, accessed June 19, 2007. The raster precipitation data 

units are in millimeters multiplied by 100, and the geographical coordinates of the grid cells are in decimal degrees.

The mean monthly precipitation (1961–90) raster data 

were available only by month. By using the 12 monthly values 

of 30-year mean precipitation for each grid cell, the GRID 

subsystem of ARC/INFO was used to compute mean values 

for the annual 12-month period and for the 7-month winter 

period (October–April). GIS Weasel was used to compute an 

average, spatially weighted value for each basin from the values for the 4-km (2.5-mi) grid cells within each basin. Finally, 

total values of precipitation for each period were computed 

and converted from millimeters to inches by multiplying by 

the number of months in the period (7 for the winter and 12 

for the annual) and dividing by 2,540.

Basin and climatic characteristics determined by using 

GIS Weasel for the 293 gaging stations in the nine flood 

regions are listed in appendix 2. The basin and climatic 

characteristics determined to be statistically significant for the 

regression models are listed in appendix 1, and the range is 

listed in table 1.

A stepwise OLS multiple-regression procedure (Minitab, 

Inc., 2003) was used to determine which independent variables 

were significant in the equations for peak discharge. In the 

stepwise procedure, variables were added one at a time until 

all that were significant at the 5-percent level were included. 

Because the logarithms of peak discharge commonly are 

determined to be linearly related to logarithms of basin and 

climatic variables, all variables were transformed to base 10 

logarithms for the regression analysis. The general form of the 

mathematical model is as follows:

log Qt = log k + a log x1 + b log x2 +. . .+ n log xn, (1)

or

Qt

= K x1

a x2b

 . . . xn

n,

where 

Qt = peak discharge (instantaneous peak discharge), 

in cubic feet per second, for recurrence 

interval t;

k = regression constant; 

a, b, ... n = regression coefficients;

x1, x2, ... xn = basin and climatic variables; and

K = the antilog of the regression constant.

One or more of the following basin and climatic characteristics was determined to be statistically significant for inclusion as independent variables in the regression equations:

A = drainage area, in square miles;

S = average basin slope upstream from the gaging 

station, in percent (feet/foot*100); 

E = average basin elevation, in feet above NAVD 88. 

Elevation was transformed by division by 1,000 

to reduce the size of the intercept coefficient of 

the equation;
8 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

I

24,100 = maximum precipitation intensity of a storm of 

24-hour duration with a recurrence interval of 

100 years; and,

Pa = mean annual precipitation (1961–90).

Additional variables listed in appendix 2 also were 

determined by using GIS; these variables include average 

basin mean annual winter precipitation (1961–90); maximum 

6-hour precipitation for 100-year recurrence intervals for 

NOAA Atlas 2 (Miller and others, 1973) and Atlas 14 

(Bonnin and others, 2004); and average basin aspect. The 

maximum precipitation frequency from NOAA Atlas 2 was 

statistically significant in some flood regions in previous 

reports (Waltemeyer, 1986, 1996). Maximum precipitation 

characteristics from NOAA Atlas 2 and Atlas 14 were not 

statistically significant (p-value less than 5 percent). Annual 

peak discharge in mountain regions are generally produced 

from snowmelt runoff where basins are greater than 7,500 feet 

in elevation. Gaging stations shown in figure 1 are grouped 

into three intervals to show the spatial distribution.

Development of Generalized Least-Squares 

Regression Equations

After the appropriate independent variables were 

determined using the OLS regression, GLS regression was 

used to determine the best values of the regression coefficients. Regression coefficients determined from a GLS 

regression procedure (Stedinger and Tasker, 1985; Tasker and 

others, 1986) are considered to be better by Tasker and others 

(1986) than those determined from OLS regression because 

GLS regression considers the time-sampling error of the 

dependent variable, whereas OLS regression does not. GLS 

regression also considers cross correlation among concurrent peak discharges at gaging stations, whereas OLS regression does not. The basic regression model that uses GLS is 

shown as equation 1. The equations determined by using GLS 

regression analysis are listed in table 2; included in these are 

equations for estimating peak-discharge magnitudes that have 

recurrence intervals of 2, 5, 10, 25, 50, 100, and 500 years for 

each of the nine regions in New Mexico and the surrounding 

area.

Residual plots of the regression analysis were examined 

for bias of model equations. The plots of the nine regions 

indicate no change in variance or any pattern showing nonhomogeneities. No significant outliers that would indicate a 

strong influence in the equation exist because of drainage area 

size. In addition, plots of the observed in comparison to predicted discharge indicate good dispersion about the 1:1 line of 

the equation that indicates equivalent observed and predicted 

values and that an adequate model was developed.

Table 1. Range of statistically significant basin and climatic characteristics selected for use in the regression analysis. 

[--, data not statistically significant]

Flood region

and number

(fig. 1)

Drainage

area

(square miles)

Average

basin slope

(percent 

[feet/foot*100])

Average 

basin

elevation

(feet)

Maximum 24-hour 

precipitation intensity 

for indicated recurrence

interval 100 years

(inches)

Average 

basin annual 

precipitation

1961–90

(inches)

Northeast plains 

flood region (1)

0.536 to 10,800 0.0205 to 0.2023 --

--

--

--

14.50 to 20.15

Northwest plateau 

flood region (2)

0.059 to 12,7000 0.0231 to 0.4447 4,320 to 7,520 --

--

--

--

Southeast mountain 

flood region (3)

3.35 to 716 --

--

4,890 to 8,820 --

--

--

--

Southeast plains 

flood region (4)

0.140 to 4,460 0.0194 to 0.1966 3,970 to 7,620 --

--

--

--

Northern mountain 

flood region (5)

0.606 to 3,120 --

--

7,570 to 11,500 1

3.08 to 5.51 --

--

Central mountain valley 

flood region (6)

0.18 to 7,220 --

--

--

--

--

--

--

--

Southwest desert 

flood region (7)

0.20 to 2,820 --

--

--

--

--

--

--

--

Southwest mountain 

flood region (8)

1.70 to1,200 --

--

--

--

--

--

--

--

Northern Arizona 

flood region (9)

0.107 to 2,150 0.0177 to 0.1545 --

--

--

--

--

--

1 Data from National Oceanic and Atmospheric Administration Atlas 14, Bonnin and others (2004). 
Table 2. Regional flood-frequency equations using generalized least-squares regression.—Continued

[Q, peak discharge, in cubic feet per second, for indicated recurrence interval; A, drainage area, in square miles; S, average basin slope upstream from gaging 

station, in percent (ft/ft*100); I24,100, maximum precipitation intensity of a storm of 24 hours duration with a recurrence interval of 100 years, in inches; Pa, 

mean annual precipitation (1961–90), in inches; E, average basin elevation, in feet] 

Equations

Recurrence 

interval

(years)

Average standard error of estimates

Regresion Prediction

Log units Percent Log units Percent

Northeast plains flood region (1)

Q2 = 8.260 x 106 A0.562 S0.351 Pa-3.81 2 0.298 74 0.320 85

Q5 = 3.939 x 108 A0.540 S0.520 Pa-4.69 5 0.250 61 0.270 69

Q10 = 2.630 x 109 A0.533 S0.615 Pa-5.10 10 0.229 55 0.249 63

Q25 = 1.764 x 1010 A0.530 S0.721 Pa-5.50 25 0.210 50 0.231 57

Q50 = 5.480 x 1010 A0.530 S0.789 Pa-5.73 50 0.200 48 0.223 55

Q100 = 1.400 x 1011 A0.531 S0.850 Pa-5.90 100 0.195 46 0.218 53

Q500 = 6.774 x 1011 A0.537 S0.966 Pa-6.15 500 0.191 46 0.219 54

Northwest plateau flood region (2)

Q2 = 9.656 x 101 A0.428 2 0.419 112 0.427 127

Q5 = 1.256 x 104 A0.365 S0.365 E/1,000-1.69 5 0.318 80 0.332 89

Q10 = 2.927 x 104 A0.344 S0.395 E/1,000-1.84 10 0.274 68 0.287 72

Q25 = 6.685 x 104 A0.323 S0.424 E/1,000-1.95 25 0.238 58 0.252 63

Q50 = 1.061 x 105 A0.308 S0.442 E/1,000-1.99 50 0.226 54 0.240 60

Q100 = 1.531 x 105 A0.295 S0.457 E/1,000-1.99 100 0.223 54 0.238 59

Q500 = 2.955 x 105 A0.267 S0.482 E/1,000-1.97 500 0.242 59 0.260 66

Southeast mountain flood region (3)

Q2 = 2.118 x 104 A0.611 E/1,000-3.16 2 0.337 86 0.381 108

Q5 = 1.506 x 105 A0.662 E/1,000-3.81 5 0.316 80 0.359 99

Q10 = 3.630 x 105 A0.698 E/1,000-4.09 10 0.307 77 0.351 96

Q25 = 8.179 x 105 A0.744 E/1,000-4.34 25 0.299 75 0.345 94

Q50 = 1.289 x 106 A0.776 E/1,000-4.47 50 0.294 73 0.342 93

Q100 = 1.856 x 106 A0.808 E/1,000-4.57 100 0.291 73 0.341 93

Q500 = 3.430 x 106 A0.876 E/1,000-4.71 500 0.289 72 0.344 94

Southeast plains flood region (4)

Q2 = 4.771 x 103 A0.467 E/1,000-1.36 S0.589 2 0.336 86 0.362 100

Q5 = 3.825 x 104 A0.465 E/1,000-2.05 S0.532 5 0.213 51 0.233 58

Q10 = 9.587 x 104 A0.460 E/1,000-2.31 S0.494 10 0.159 38 0.180 43

Q25 = 2.565 x 105 A0.448 E/1,000-2.54 S0.477 25 0.126 30 0.151 36

Q50 = 5.293 x 105 A0.436 E/1,000-2.72 S0.483 50 0.130 31 0.158 38

Q100 = 1.057 x 106 A0.426 E/1,000-2.89 S0.489 100 0.152 36 0.182 44

Q500 = 4.107 x 106 A0.404 E/1,000-3.24 S0.484 500 0.227 55 0.261 66

Northern mountain flood region (5)

Q2 = 0.301 x 101 A0.805 E/1,000-1.61 I24,1003.41 2 0.296 74 0.306 80

Q5 = 3.760 x 101 A0.761 E/1,000-2.58 I24,1003.76 5 0.247 60 0.257 65

Q10 = 1.624 x 102 A0.736 E/1,000-3.14 I24,1003.93 10 0.233 56 0.242 60

Q25 = 8.304 x 102 A0.709 E/1,000-3.76 I24,1004.10 25 0.232 56 0.242 60

Q50 = 2.449 x 103 A0.691 E/1,000-4.17 I24,1004.21 50 0.242 59 0.253 64

Q100 = 6.592 x 103 A0.675 E/1,000-4.55 I24,1004.32 100 0.257 63 0.268 68

Q500 = 5.211 x 104 A0.642 E/1,000-5.36 I24,1004.55 500 0.304 76 0.318 84

Central mountain-valley flood region (6)

Q2 = 1.328 x 102 A0.420 2 0.376 98 0.394 113

Q5 = 3.163 x 102 A0.394 5 0.298 74 0.313 83

Q10 = 4.906 x 102 A0.383 10 0.269 66 0.284 73

Q25 = 7.800 x 102 A0.372 25 0.252 62 0.267 68

Q50 = 1.051 x 103 A0.365 50 0.248 60 0.265 67

Q100 = 1.374 x 103 A0.359 100 0.251 61 0.268 68

Q500 = 2.354 x 103 A0.348 500 0.273 68 0.292 76

Table 2. Regional flood-frequency equations using generalized least-squares regression. 

[Q, peak discharge, in cubic feet per second, for indicated recurrence interval; A, drainage area, in square miles; S, average basin slope upstream from gaging 

station, in percent (ft/ft*100); I24,100, maximum precipitation intensity of a storm of 24 hours duration with a recurrence interval of 100 years, in inches; Pa, 

mean annual precipitation (1961–90), in inches; E, average basin elevation, in feet] 

Analysis of Magnitude and Frequency of Peak Discharges 9
10 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Improvement of Estimates at Gaging Stations

Flood-frequency estimates for gaging stations that have 

short-term records can be improved by weighting the station 

data with estimates from the regional regression equation 

(Interagency Advisory Committee on Water Data, 1982). 

The GLSNET (Regional Hydrologic Regression and Network 

Analysis using Generalized Least-Squares) (Stedinger and 

Tasker, 1985) computer program computes the weighted 

estimate by using the observed station peak discharge, the 

regression-equation-predicted peak discharge, the equivalent 

years of record, and the actual record length. The observed 

(first line of data), predicted (second line of data), and 

weighted (third line of data) flood-frequency data are listed 

in appendix 1 for each gaging station. Weighted estimates, 

considered to be the best estimates at gaging stations, were 

determined by the following equation:

Qw = (ni yi + eni xib) / (ni + eni), (2)

where

Qw = weighted flood-frequency data at the gaging station, 

in cubic feet per second;

ni = actual record length, in years;

yi = flood-frequency data at the gaging station, in cubic 

feet per second;

eni = equivalent record length, in years; and

xib = predicted flood-frequency data at the gaging station 

determined using the regression equation, in cubic 

feet per second.

The weighted estimate determined by equation 2 is a 

function of actual record length and equivalent years from 

the regression analysis. If actual record length is longer than 

equivalent years, more weight is given to the observed station data. Conversely, if actual record length is shorter than 

equivalent years, more weight is given to the regression 

estimate.

Table 2. Regional flood-frequency equations using generalized least-squares regression.—Continued

[Q, peak discharge, in cubic feet per second, for indicated recurrence interval; A, drainage area, in square miles; S, average basin slope upstream from gaging 

station, in percent (ft/ft*100); I24,100, maximum precipitation intensity of a storm of 24 hours duration with a recurrence interval of 100 years, in inches; Pa, 

mean annual precipitation (1961–90), in inches; E, average basin elevation, in feet] 

Equations

Recurrence 

interval

(years)

Average standard error of estimates

Regresion Prediction

Log units Percent Log units Percent

Southwest desert flood region (7)

Q2 = 1.465 x 102 A0.454 2 0.233 57 0.251 63

Q5 = 2.777 x 102 A0.468 5 0.180 43 0.196 48

Q10 = 3.878 x 102 A0.477 10 0.157 37 0.173 41

Q25 = 5.537 x 102 A0.488 25 0.140 33 0.157 38

Q50 = 6.955 x 102 A0.497 50 0.136 32 0.155 37

Q100 = 8.518 x 102 A0.506 100 0.138 32 0.159 38

Q500 = 1.275 x 103 A0.529 500 0.162 38 0.186 45

Southwest mountain flood region (8)

Q2 = 8.990 x A0.800 2 0.213 51 0.223 55

Q5 = 2.516 x 101 A0.728 5 0.176 42 0.186 45

Q10 = 4.310 x 101 A0.691 10 0.169 40 0.180 43

Q25 = 7.638 x 101 A0.652 25 0.172 41 0.185 45

Q50 = 1.105 x 102 A0.626 50 0.181 43 0.195 46

Q100 = 1.539 x 102 A0.603 100 0.193 46 0.208 51

Q500 = 3.012 x 102 A0.557 500 0.229 55 0.246 62

Northeastern Arizona flood Region (9)

Q2 = 4.069 x 102 A0.495 S0.777 2 0.340 87 0.360 99

Q5 = 1.029 x 103 A0.488 S0.787 5 0.268 66 0.286 74

Q10 = 1.750 x 103 A0.481 S0.805 10 0.251 61 0.270 69

Q25 = 3.157 x 103 A0.473 S0.831 25 0.255 62 0.276 71

Q50 = 4.642 x 103 A0.466 S0.850 50 0.269 66 0.292 76

Q100 = 6.574 x 103 A0.460 S0.867 100 0.289 72 0.313 83

Q500 = 1.335 x 104 A0.446 S0.904 500 0.345 89 0.373 104
Analysis of Magnitude and Frequency of Peak Discharges 11

Limitations and Accuracy of Regression 

Equations

The intended use of regression equations is to provide 

reliable estimates of peak discharges for selected recurrence intervals at unregulated, ungaged stream sites in New 

Mexico and surrounding areas. Estimates commonly are 

required for unregulated, ungaged sites and, often, for unregulated, ungaged sites on streams that have gaging stations 

located near the ungaged sites. Estimates at ungaged sites 

in a basin located in two regions are less common and somewhat more difficult to develop than are those for basins in 

one region. In parts of some regions, regression equations 

may not be reliable for areas with sparse data or for ungaged 

sites that have basin and climatic characteristics beyond the 

range of those listed in table 1. Extrapolation beyond the 

upper and lower ranges of the basin and climatic characteristics may result in an exponential change in the value from 

the equation and unreliable regression estimates. The application of regional equations is not intended to preclude the 

use of sound hydrologic judgment or any other hydrologic 

or engineering method that may provide a more reliable 

estimate. Unit-hydrograph techniques that use gaged precipitation in a basin lacking gaging-station data may yield 

more reliable estimates of peak discharge than regional 

equations. 

Accuracy of the GLS regression equations generally is 

measured by the average standard error of prediction and 

the equivalent years of record. The average standard error 

of prediction is the sum of the average regression or model 

error and the average sampling error. The average standard 

error of regression presented in table 2 for a 100-year 

recurrence interval peak discharge ranged from 32 to 73 percent (mean is 54, and median value is 54) for the regions. 

The average standard error of prediction presented in table 2 

for a 100-year recurrence interval peak discharge ranged 

from 38 to 93 percent (mean value is 62, and median value 

is 59) for the regions. The Waltemeyer (1996) investigation 

standard error of prediction for the flood regions ranged 

from 41 to 96 percent (mean value is 67 and median value 

is 68). Improvements over errors previously reported are 

attributed to improved GIS determination of drainage area, 

improved estimates of average basin elevation, and the 

improved determination of average basin slope available for 

the first time in New Mexico. Overall, the equations based on 

GLS regression techniques are more reliable than those in the 

previous report (Waltemeyer, 1996) because of the increased 

length of record and improved GIS method. The average 

standard error of prediction was calculated in log units and 

converted to percent by means of the methods described by 

Hardison (1971).

Equivalent years of record are an alternative measure 

of the accuracy of regression equations that are particularly 

useful for comparison to gaging-station data. Equivalent years 

of record are the number of years of actual peak-discharge 

record that would be required to achieve the same accuracy in 

the estimate of the t-year (recurrence interval) peak discharge 

as that obtained from the regional equation. Equivalent years 

of record are computed by the GLSNET computer program 

using the method described by Hardison (1971). 

Estimate of Magnitude and Frequency of Peak 

Discharges at Ungaged Sites

Peak discharges that have various recurrence intervals 

can be estimated for ungaged sites on unregulated, ungaged 

streams from the regional equations listed in table 2. Gagingstation data can be extrapolated to estimate peak discharge 

at an ungaged site on a stream that has a nearby gaging 

station. Additionally, flood-frequency data are available 

for gaging stations on the main stems of some streams not 

used in this report for the development of regional regression 

relations. Data at these gaging stations can be used to make 

estimates at ungaged sites on the same stream. The independent variables that pertain to the equation for each region 

need to be measured as previously described for the development of the equations. These methods are described in more 

detail in “National Handbook of Recommended Methods 

for Water-Data Acquisition” (U.S. Geological Survey, 1977) 

and in the section “Determination of Basin and Climatic 

Characteristics” in this report. The following sections present 

examples of the previous procedures.

Ungaged Site on an Ungaged Stream

An estimate of peak discharge with a recurrence interval 

of 100 years is required for an ungaged site in flood region 2 

that has a drainage area of 523 mi2, average basin slope of 

0.2422, in percent; and a mean basin elevation of 6,940 ft. 

When the equation in table 2 is applied, the peak discharge for 

a 100-year recurrence interval is:

Q100 = 1.531 x 105 A0.295 S0.457 E/1,000-1.99

 = (1.531 x 105

) (523)0.295 (0.2422)0.457 (6,940/1,000)-1.99

 = 10,800 ft3

/s.

Ungaged Site on a Stream Having a Nearby 

Gaging Station

Flood-frequency estimates can be made for ungaged 

sites upstream or downstream from gaging stations by using 

a method developed by Saur (1974). Using this method, 

flood-frequency data at the gaging station is transferred to 

the ungaged site by using the following drainage-area ratio 

adjustment equation:

QT(u) = QT(g) (Au/Ag)x, (3)
12 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

where

QT(u) = weighted flood-frequency estimate at the ungaged 

site, in cubic feet per second;

QT(g) = flood-frequency estimate at the gaging station, in 

cubic feet per second;

Au = drainage area at the ungaged site, in square miles;

Ag = drainage area at the gaging station, in square miles; 

and

x = exponent of the drainage area of the applicable 

regional regression equation listed in table 2.

According to Saur (1974), the equation is applicable 

when the drainage-area ratio is between 0.5 and 1.5. For 

example, to estimate a 50-year peak discharge at an ungaged 

site in region 2 upstream from gaging station Cisco Wash 

near Cisco, Utah (09163700), the station value listed in 

appendix 1 is 4,670 ft3/s. Note that the weighted value of 

5,500 ft3

/s was not used because when using this technique, 

a regional adjustment is made by using the exponent from 

the regional equation. The weighted value is considered the 

best flood-frequency value, and when using this technique, 

a double weight would be made based on the regional flood 

information. The drainage area at the gaging station is 90.7 

mi2 (app. 1). The exponent of the drainage area of the regression equation for a 50-year recurrence interval for region 2 

is 0.308 (table 2). The drainage area at the ungaged site is 

75.5 mi2, and when equation 4 is used the peak discharge at 

the ungaged site is:

Q50 u= Q50 g (Au/Ag)

x (4)

= (4,670) (75.5/90.7)0.308

= 4,410 ft3/s.

Analysis of Maximum Observed Peak 

Discharge

Envelope curves relating maximum observed peak 

discharge to drainage area were developed for New Mexico. 

Envelope curves provide an indication of the upper limits 

of peak discharge based on all currently available data and 

thus can serve as a guide to the reasonableness of flood 

frequency estimates for large recurrence intervals. Extreme 

events commonly are used in the design and appraisal of 

bridge crossings and other structures. Bridge-scour evaluations commonly are made by using the 500-year peak discharge for these appraisals. Peak-discharge data collected at 

293 gaging stations (fig. 1) and 367 miscellaneous sites (fig. 2) 

were used to develop a maximum peak-discharge relation 

as an alternative method of estimating peak discharge of an 

extreme event.

Maximum peak discharges for 293 gaging stations 

(app. 1) and 367 miscellaneous sites (app. 3) in New Mexico 

were compared to drainage area for each of nine flood 

regions in New Mexico (figs. 3–11). These relations between 

maximum peak discharge and drainage area are used by the 

New Mexico Department of Transportation (NMDOT) to 

determine a maximum extreme flood or superflood (New 

Mexico Department of Transportation, 1995). Originally, 

similar relations have been shown for maximum floodflows 

in the United States (Crippen and Bue, 1977). The new 

envelope curves for New Mexico provide the best estimate 

of the maximum peak discharge expected because the data 

extend through 2004 and use data from miscellaneous sites. 

Because the envelope curves are based on maximum peak 

discharges without regard to record length, the envelope 

curves are not related to any specific recurrence interval. Thus, 

the curve only can be used as a general guide to determine 

whether regression estimates are reasonable. Regardless, 

the envelope curve indicates the maximum flood response 

observed in New Mexico and is useful for extreme-flood 

comparisons.

Future Data Needs and Network 

Improvements

Statistical flood-frequency relations can be improved 

by continuing operation of the 293 gaging stations and (or) 

367 miscellaneous sites in New Mexico and surrounding areas 

to collect additional peak-flow data. Flood-frequency equations also might be improved by including new basin and climatic characteristics other than the new variables determined 

with GIS in this investigation.

Flood-frequency relations based on channel-geometry 

characteristics have been determined to provide reliable 

estimates in other States (Hedman and Osterkamp, 1982) 

and in New Mexico in a limited study based on data from 

79 gaging stations (Scott and Kunkler, 1976). Channelgeometry characteristics have been measured by the USGS 

(Waltemeyer, USGS files, Albuquerque, New Mexico) at 

most crest-stage gages and continuously recording gaging 

stations, except for the gaging stations in the four corners 

area. The active-channel width measurements at about 

91 gaging stations in Utah and Arizona are needed to complete that investigation. Flood-frequency equations based 

on channel-geometry characteristics then could be developed for the nine physiographic regions in New Mexico; 

the new equations would provide users with an alternative 

method for estimating flood magnitude and frequency to corroborate results from regression equations presented in this 

report.
Future Data Needs and Network Improvements 13

Figure 2. Flood regions and location of miscellaneous sites in New Mexico and surrounding areas. 

108°00' 106°00' 104°00' 110°00' 38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

0 80 160 MILES

7

4

5 1

6

8

3

2

9

COLORADO

NEW MEXICO

UTAH

ARIZONA

UNITED STATES

MEXICO

TEXAS

OKLAHOMA

EXPLANATION

Flood region boundary—Region number referenced in table 1

Gaging station and identifier (referenced in appendix 3) 55

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84 83

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65 64 62

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56 55

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42

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32 33

31

30

29

27

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24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

367 366

365

364

362

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360

353

352 351

350

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346

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340 339

338

337

334

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328 329

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326 323 325

322

320 321

319

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315 314

313

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311 310 309

308

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300 299

298

293

292

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285

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279 278

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275

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266 265 264

263

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254 253

252

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249 248

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235 234

233

229

228 223 222

218

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209

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205

199

197

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182

178

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176

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171

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167

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147 141

140

138

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134 133

129

125

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119118

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110

109 108

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103 102

100

28

117

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104

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127 101

66

61

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70

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63

297

324

207

307 305

294

341

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286

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247

276 193 230231 232

130

128 132 131

142 143

164 162 144

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200201

168

257 256

255

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210 184

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237

224

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355

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359

363

U. S. Geological Survey digital data 1:500,000

Lambert projection, NAD 83

0 80 160 MILES

7 4

9

2

5 1

6

8 3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood regions
14 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 3. Envelope curve comparing maximum observed peak discharge to drainage area in the northeast plains flood region 1. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

1,000,000

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
Future Data Needs and Network Improvements 15

Figure 4. Envelope curve comparing maximum observed peak discharge to drainage area in the northwest plateau flood region 2. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
16 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 5. Envelope curve comparing maximum observed peak discharge to drainage area in the southeast mountain flood region 3. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region

Gaging station

Miscellaneous site
Future Data Needs and Network Improvements 17

Figure 6. Envelope curve comparing maximum observed peak discharge to drainage area in the southeast plains flood region 4. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
18 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 7. Envelope curve comparing maximum observed peak discharge to drainage area in the northern mountain flood region 5. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

10

DRAINAGE AREA, IN SQUARE MILES

0.01 0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
Future Data Needs and Network Improvements 19

Figure 8. Envelope curve comparing maximum observed peak discharge to drainage area in the central mountain valley flood 

region 6. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

10

DRAINAGE AREA, IN SQUARE MILES

0.01 0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
20 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 9. Envelope curve comparing maximum observed peak discharge to drainage area in the southwest desert flood region 7. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
Future Data Needs and Network Improvements 21

Figure 10. Envelope curve comparing maximum observed peak discharge to drainage area in the southwest mountain flood region 8. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000 10,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
22 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Figure 11. Envelope curve comparing maximum observed peak discharge to drainage area in the northern Arizona flood region 9. PEAK DISCHARGE, IN CUBIC FEET PER SECOND

100,000

10,000

1,000

100

DRAINAGE AREA, IN SQUARE MILES

0.1 1 10 100 1,000

Gaging station

Miscellaneous site

0 80 160 MILES

7

4

9

2

5 1

6

8

3

COLORADO

NEW MEXICO

UTAH

ARIZONA

110°00' 108°00' 106°00' 104°00' 102°00'

112°00' 114°00' 42°00'

41°00'

40°00'

39°00'

38°00'

37°00'

36°00'

35°00'

34°00'

33°00'

32°00'

Location of flood region
References Cited 23

Summary

Estimates of the magnitude and frequency of peak 

discharge are necessary for reliable bridge, culvert, and openchannel hydraulic analysis and for flood-hazard mapping in 

New Mexico and surrounding areas. The U.S. Geological 

Survey (USGS), in cooperation with the New Mexico Department of Transportation, updated estimates of peak discharge 

magnitude for gaging stations in the region and updated 

regional equations for estimation of peak discharge and peak 

discharge frequency at ungaged sites.

Equations were developed for estimating the magnitude 

of peak discharges for recurrence intervals of 2, 5, 10, 25, 50, 

100, and 500 years at ungaged sites by use of data collected 

through 2004 for 293 gaging stations on unregulated streams 

that have 10 or more years of record.

Peak discharges for selected recurrence intervals were 

determined at gaging stations by fitting observed data to a 

log-Pearson Type III probability distribution with adjustments 

for a low-discharge threshold and a zero skew coefficient. A 

low-discharge threshold was applied to frequency analysis of 

140 gaging stations. An improved fit of the log-Pearson Type 

III frequency distribution is provided using this analysis. Use 

of the low-discharge threshold generally eliminated the peak 

discharges that have a recurrence interval of less than 1.4 years 

in the probability-density function.

The National Elevation Dataset (30-m resolution) was 

used with the USGS computer program GIS Weasel for determining basin and climatic characteristics. Statistically significant characteristics are drainage area, average basin slope, 

average basin elevation, average basin maximum 24-hour 

precipitation for 100-year recurrence intervals for NOAA 

Atlas 2 and Atlas 14, and average basin annual precipitation 

(1961–90). These characteristics are used in regression equations for one or more flood regions. Other characteristics not 

statistically significant but determined by using GIS include 

average basin mean annual winter precipitation (1961–90), 

average basin maximum 24-hour and 6-hour precipitation for 

100-year recurrence intervals for NOAA Atlas 2 and Atlas 14, 

and average basin aspect. 

Flood response for nine distinct flood regions are 

reflected in the equations developed for this report. The flood 

regions were delineated on the basis of the hydrologic unit 

codes from a 1996 investigation and were expanded into 

the four corners area. Within each region, logarithms of the 

maximum peak discharges for selected recurrence intervals 

were related to logarithms of basin and climatic characteristics 

by using stepwise ordinary least-squares regression techniques for exploratory data analysis. Generalized least-squares 

regression techniques, an improved regression procedure 

that accounts for time and spatial sampling errors, then were 

applied to the same data used in the ordinary least-squares 

regression analyses. The average standard error of prediction, 

which includes average sampling error and average standard 

error of regression, ranged from 38 to 93 percent (mean value 

is 62, and median value is 59) for the 100-year flood in this 

investigation. The 1996 investigation standard error of prediction for the flood regions ranged from 41 to 96 percent (mean 

value is 67, and median value is 68) for the 100-year flood that 

was analyzed by using generalized least-squares regression 

analysis. Overall, the equations based on generalized leastsquares regression techniques are improved and more reliable 

than those in the 1996 investigation because of the increased 

length of record and improved geographic information system 

method. 

Flood-frequency estimates can be made for ungaged 

sites upstream or downstream from gaging stations by using a 

method that transfers flood-frequency data at the gaging station to the ungaged site by using a drainage-area ratio adjustment equation. The peak discharge for a given recurrence 

interval at the gaging station, drainage-area ratio, and the 

drainage-area exponent from the regional regression equation 

of the respective region is used to transfer the peak discharge 

for the recurrence interval to the ungaged site.

Maximum observed peak discharge as related to drainage 

area was determined for New Mexico. Extreme events commonly are used in the design and appraisal of bridge crossings 

and other structures. Bridge-scour evaluations are commonly 

made by using the 500-year peak discharge for these appraisals. Peak-discharge data collected at 293 gaging stations and 

367 miscellaneous sites were used to develop a maximum 

peak-discharge relation as an alternative method of estimating 

peak discharge of an extreme event. 

References Cited

Bonnin, G.M., Todd, D., Lin, B., Parzybok, T., Yekta, M., and 

Riley, D., 2004, Precipitation-frequency atlas of the Western 

United States, v. 1– Semiarid Southwest (Arizona, southeast California, Nevada, New Mexico, and Utah): National 

Oceanic and Atmospheric Administration NOAA Atlas 14, 

246 p.

Crippen, J.R., 1978, Composite log-Pearson Type III frequency-magnitude curve of annual floods: U.S. Geological 

Survey Open-File Report 78–352, 5 p.

Crippen, J.R., and Bue, C.D., 1977, Maximum floodflows in 

the conterminous United States: U.S. Geological Survey 

Water-Supply Paper 1887, 52 p.

Daly, C., Neilson, R.P., and Phillips, D.L., 1994, A statisticaltopographic model for mapping climatological precipitation 

over mountainous terrain: Journal of Applied Meteorology, 

v. 33, p. 140–158.

Daly, C., 1998a, Arizona average monthly or annual precipitation, 1961–90: Portland, Oreg., Water and Climate Center 

of the Natural Resources Conservation Service, accessed 

June 19, 2007, at URL http://www.ocs.orst.edu/pub/maps/

Precipitation/Total/States/AZ
24 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Daly, C., 1998b, Colorado average monthly or annual precipitation, 1961–90: Portland, Oreg., Water and Climate Center 

of the Natural Resources Conservation Service, accessed 

June 19, 2007, at URL http://www.ocs.orst.edu/pub/maps/

Precipitation/Total/States/CO

Daly, C., 1998c, New Mexico average monthly or annual 

precipitation, 1961–90: Portland, Oreg., Water and Climate 

Center of the Natural Resources Conservation Service, 

accessed June 19, 2007, at URL http://www.ocs.orst.edu/

pub/maps/Precipitation/Total/States/NM

Daly, C., 1998d, Utah average monthly or annual precipitation, 1961–90: Portland, Oreg., Water and Climate Center 

of the Natural Resources Conservation Service, accessed 

June 19, 2007, at URL http://www.ocs.orst.edu/pub/maps/

Precipitation/Total/States/UT

Dempster, G.R., 1981, Peak flow file, chap. I, sec. B, 

WATSTORE user’s guide: U.S. Geological Survey OpenFile Report 79–1336–I, v. 4, p. B-1 to B-58.

Dempster, G.R., 1983, Streamflow basin characteristics, 

chap. II, sec. A, WATSTORE user’s guide: U.S. Geological 

Survey Open-File Report 79-1336-I, v. 4, p. A-24 to A-34.

ESRI, 1999, ARC/INFO version 8.0.1: Redlands, Calif., Environmental Systems Research Institute, variously paged.

Federal Emergency Management Agency, 2002, National 

Insurance Program: Federal Insurance and Investigation 

Administration, accessed January 30, 2008, at URL http://

www.fema.gov/Library, page5 

Hardison, C.H., 1971, Prediction error of regression estimates 

of streamflow characteristics at ungaged sites, in Geological 

Survey Research 1971: U.S. Geological Survey Professional 

Paper 750-C, p. C228–C236.

Hedman, E.R., and Osterkamp, W.R., 1982, Streamflow 

characteristics related to channel geometry of streams in 

Western United States: U.S. Geological Survey WaterSupply Paper 2193, 16 p.

Interagency Advisory Committee on Water Data, 1982, Guidelines for determining peak discharge frequency: Reston, Va., 

Bulletin 17B of the Hydrology Subcommittee, Office of 

Water Data Coordination, U.S. Geological Survey, 28 p. and 

appendices.

Jarrett, R.D., and Costa, J.E., 1982, Multidisciplinary approach 

to the flood hydrology of foothill streams in Colorado, in

Proceedings, International Symposium of Hydrometeorology: Denver, Colo., American Water Resources Association, 

June 1982, p. 565–569.

Kirby, W.H., 1981, Peak flow file, chap. I, sec. C, WATSTORE user’s guide: U.S. Geological Survey Open-File 

Report 79–1336–I, v. 4, p. C-1 to C-57.

Lumb, A.M., Kittle, J.L., Jr., and Flynn, K.M., 1990, User’s 

manual for ANNIE, a computer program for interactive 

hydrologic analyses and data management: U.S. Geological 

Survey Water-Resources Investigations Report 89–4080, 

236 p.

Miller, J.F., Frederick, R.H., and Tracey, R.J., 1973, Precipitation-frequency atlas of the Western United States, v. IV—

New Mexico: National Oceanic and Atmospheric Administration NOAA Atlas 2, 43 p.

Minitab, Inc., 2003, Minitab release 14 reference manual, 

September 2003: State College, Pa., 138 p.

New Mexico Department of Transportation, 1995, Drainage 

manual volume 1, hydrology: Preliminary design bureau/

drainage section: Santa Fe, New Mexico Department of 

Transportation, 92 p. and appendices.

Saur, V.B., 1974, Flood characteristics of Oklahoma streams: 

U.S. Geological Survey Water-Resources Investigations 

Report 52–73, 301 p.

Scott, A.G., and Kunkler, J.L., 1976, Flood discharges of 

streams in New Mexico as related to channel geometry: 

U.S. Geological Survey Open-File Report 76–414, 

29 p.

Seaber, P.R., Kapinos, F.P., and Knapp, G.L., 1987, Hydrologic unit maps: U.S. Geological Survey Water-Supply 

Paper 2294, 63 p.

Stedinger, J.R., and Tasker, G.D., 1985, Regional hydrologic analysis—ordinary, weighted, and generalized least 

squares compared: Water Resources Research, v. 21, no. 9, 

p. 1,421–1,432.

Tasker, G.D., Eychaner, J.H., and Stedinger, J.R., 1986, Application of generalized least-squares in regional hydrologic 

regression analysis: U.S. Geological Survey Water-Supply 

Paper 2310, p. 107–115.

Thomas, B.E., Hjalmarson, H.W., and Waltemeyer, S.D., 1997, 

Methods for estimating magnitude and frequency of floods 

in the Southwestern United States: U.S. Geological Survey 

Water-Supply Paper 2433, 195 p.

U.S. Geological Survey, 1977, National handbook of recommended methods for water-data acquisition: chap. 

VII, Office of Water Data Coordination (rev. June 1978), 

p. 9–15.

U.S. Geological Survey, 1991, National water summary 

1988–89—Hydrologic events and floods and droughts: U.S. 

Geological Survey Water-Supply Paper 2375, 591 p.

U.S. Geological Survey, 1999, National elevation dataset 

(NED) online data: U.S. Geological Survey, EROS Data 

Center, ed. 1, accessed June 19, 2007, at URL http://ned.

usgs.gov
References Cited 25

U.S. Geological Survey, 2000, The GIS Weasel online data 

and program: U.S. Geological Survey, Branch of Regional 

Research, version 3.40, accessed June 19, 2007, at URL 

http://wwwbrr.cr.usgs.gov/projects/SW_precip_runoff/

software/weasel_s/weasel.shtml

U.S. Geological Survey, 2001, NWISWeb Data for the 

Nation—online data: Reston, Va., U.S. Geological Survey, 

accessed June 19, 2007, at URL http://waterdata.usgs.gov/

Viger, R.J., and Leavesly, G.H., 2007, The GIS Weasel user’s 

manual: U.S. Geological Survey Techniques and Methods, 

book 6, chap. B4, 201 p.

Waltemeyer, S.D., 1986, Techniques for estimating flood-flow 

frequency for unregulated streams in New Mexico: U.S. 

Geological Survey Water-Resources Investigations Report 

86–4104, 56 p.

Waltemeyer, S.D., 1996, Analysis of the magnitude and 

frequency of peak discharge and maximum observed peak 

discharge in New Mexico: U.S. Geological Survey WaterResources Investigations Report 96–4112, 79 p. 
Blank Page
Appendix 1

Appendix 1—Selected Basin, Climatic, and Flood 

Characteristics; Maximum Peak Discharge Recorded; and 

Low-Discharge Threshold for Gaging Stations
28 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin 

slope

(percent

[feet/foot*100])

Average basin 

mean annual

precipitation

1961–90

(inches)

Map

identifier

(fig. 1)

Northeast plains flood region (1)

07153500 Dry Cimarron River near Guy, New Mexico 611

500

0.1132 16.85 1

07154400 Carrizozo Creek near Kenton, Oklahoma 111

111

0.1054 16.13 2

07199000 Canadian River near Hebron, New Mexico 197

229

0.1988 18.41 3

07201200 Chicorica Creek tributary near Raton, New Mexico 4.48

5.18

0.1363 17.03 4

07203600 Rio del Plano tributary near Taylor Springs, New Mexico 6.76

6.71

0.0205 15.86 5

07211000 Cimarron River at Springer, New Mexico 937

1,030

0.2023 18.74 6

07211500 Canadian River near Taylor Springs, New Mexico 2,760

2,850

0.1559 17.88 7

07213700 Canadian River triibutary near Mills, New Mexico 3.23

4.20

0.0497 15.89 8

07214000 Canadian River near Roy, New Mexico 3,810

4,070

0.1333 17.42 9

07220900 Dog Creek near Shoemaker, New Mexico 17.1

18.4

0.0563 16.97 10

07221000 Mora River near Shoemaker, New Mexico 1,040

1,100

0.1401 20.15 11

07221500 Canadian River near Sanchez, New Mexico 5,900

6,020

0.1280 17.70 12

07221600 Lagarita Creek near Sanchez, New Mexico 2.28

1.00

0.1789 15.06 13

07222000 Canadian River near Bell Ranch, New Mexico 6,080

6,200

0.1271 17.62 14

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]
Appendix 1 29

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northeast plains flood region (1)

07153500 2,810

3,020

2,820

6,740

7,210

6,790

11,000

10,600

10,100

18,800

19,600

19,000

26,900

27,800

27,200

37,500

38,200

37,800

75,300

73,300

74,400

46,100

(1965)

--

0

--

--

33

--

--

1

07154400 1,780

1,330

1,760

4,170

3,390

4,100

6,590

5,590

6,450

10,900

9,610

10,600

15,100

13,700

14,700

20,400

18,800

19,900

37,900

35,800

37,100

15,600

(1958)

--

0

--

--

52

--

--

2

07199000 3,090

1,390

2,980

6,880

3,460

6,460

10,800

5,720

9,860

17,800

9,940

15,700

24,900

14,300

21,500

34,000

20,000

28,800

65,500

39,800

54,000

62,400

(1965)

--

300

--

--

40

--

--

3

07201200 57

195

62

199

531

229

389

896

465

805

1,570

989

1,300

2,240

1,590

2,000

3,090

2,410

4,860

5,860

5,350

1,340

(1982)

--

0

--

--

30

--

--

4

07203600 134

166

136

299

345

307

454

500

465

701

736

713

926

940

931

1,190

1,170

1,180

1,940

1,820

1,870

724

(1982)

--

0

--

--

12

--

--

5

07211000 735

3,140

760

1,980

7,460

2,100

3,500

12,100

3,820

6,680

20,900

7,610

10,400

30,000

12,100

15,700

41,900

18,700

37,900

83,900

45,600

29,500

(1965)

--

220

--

--

75

--

--

6

07211500 4,370

6,290

4,410

10,400

14,600

10,500

17,300

23,400

17,700

31,600

39,700

32,500

47,900

56,600

49,200

71,000

78,600

72,400

168,000

156,000

164,000

162,000

(1965)

--

0

--

--

65

--

--

7

07213700 220

149

209

732

364

623

1,310

576

999

2,340

932

1,550

3,340

1,260

2,020

 4,550

1,660

2,540

8,190

2,840

4,070

1,280

(1966)

--

100

--

--

13

--

--

8

07214000 9,310

7,880

9,230

26,400

18,100

25,400

46,100

28,800

42,700

84,000

48,500

73,600

124,000

68,900

104,000

177,000

95,200

143,000

368,000

187,000

274,000

172,000

--

--

5,500

--

--

30

--

--

9

07220900 836

308

809

1,890

702

1,780

2,940

1,080

2,660

4,740

1,720

4,040

6,490

2,310

5,270

8,630

3,030

6,700

15,500

5,240

11,100

7,180

(1982)

--

300

--

--

48

--

--

10

07221000 2,350

2,220

2,350

4,870

4,640

4,860

7,250

7,060

7,240

11,200

11,300

11,200

15,000

15,700

15,100

19,600

21,100

19,700

34,000

39,800

34,800

15,200

(1948)

--

900

--

--

79

--

--

11

07221500 6,260

9,350

6,320

16,400

20,800

16,600

28,400

32,700

28,700

52,900

54,400

53,100

80,600

76,800

80,100

119,000

106,000

117,000

276,000

206,000

258,000

145,000

(1965)

--

900

--

--

70

--

--

12

07221600 210

235

214

600

755

645

1,020

1,380

1,160

1,770

2,620

2,190

2,510

3,930

3,290

3,420

5,620

4,740

6,310

11,300

9,610

1,500

(1984)

--

0

--

--

16

--

--

13

07222000 11,000

9,650

10,800

22,600

21,500

22,300

32,600

33,800

32,900

47,900

56,400

51,200

61,300

79,600

69,400

76,200

110,000

92,400

118,000

214,000

170,000

47,800

(1937)

--

0

--

--

13

--

--

14

gaging stations. 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 
30 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin 

slope

(percent

[feet/foot*100])

Average basin 

mean annual

precipitation

1961–90

(inches)

Map

identifier

(fig. 1)

Northeast plains flood region (1)—Continued

07222300 Tremintina Creek at Tremintina, New Mexico 64.1

65.0

0.1607 15.35 15

07222500 Conchas River at Variadero, New Mexico 474

523

0.0716 15.23 16

07222800 Garita Creek tributary near Variadero, New Mexico 24.5

12.0

0.0423 14.50 17

07225000 Pajarito Creek near Newkirk, New Mexico 80.8

55.0

0.0315 14.87 18

07225300 Bluewater Creek near Tucumcari, New Mexico 15.2

15.2

0.0571 15.62 19

07225500 Ute Creek near Gladstone, New Mexico 249

256

0.0589 16.84 20

07226200 Bueyeros Creek at Bueyeros, New Mexico 45.6

34.0

0.0916 15.48 21

07226300 Carrizo Creek near Roy, New Mexico 96.1

68.0

0.0250 16.07 22

07226500 Ute Creek near Logan, New Mexico 2,030

2,060

0.0467 15.87 23

07227000 Canadian River near Logan, New Mexico 10,800

11,140

0.0984 16.61 24

07227050 Plaza Larga Creek tributary near Ragland, New Mexico .536

.360

0.1378 16.30 25

07227100 Revuelto Creek near Logan, New Mexico 798

786

0.0492 16.21 26

07227150 Arroyo del Puerto near Endee, New Mexico 34.1

25.0

0.0507 17.03 27

07227200 Tramperos Creek near Stead, New Mexico 498

556

0.0604 15.58 28

07227295 Sandy Arroyo tributary near Clayton, New Mexico 1.23

1.25

0.0213 15.48 29
Appendix 1 31

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northeast plains flood region (1)—Continued

07222300 1,390

1,370

1,390

3,740

3,960

3,760

6,220

6,970

6,340

10,700

12,800

11,200

15,100

18,900

16,200

20,500

26,900

22,600

38,100

54,300

44,400

14,100

(1965)

--

0

--

--

43

--

--

15

07222500 3,060

3,280

3,060

6,940

7,960

7,000

11,300

12,800

11,500

20,100

21,500

20,300

29,900

30,200

29,900

43,500

41,000

43,000

98,900

76,500

91,800

44,000

(1942)

--

900

--

--

60

--

--

16

07222800 515

621

520

1,590

1,540

1,590

2,910

2,450

2,820

5,570

4,020

5,130

8,520

5,500

7,440

12,500

7,270

10,300

27,600

12,700

19,500

7,020

(1977)

--

50

--

--

31

--

--

17

07225000 986

995

986

1,830

2,230

1,860

2,530

3,400

2,610

3,560

5,320

3,780

4,420

7,100

4,850

5,380

9,190

6,090

7,960

15,500

9,740

3,550

(1962)

--

0

--

--

48

--

--

18

07225300 542

398

532

1,160

979

1,130

1,700

1,570

1,670

2,530

2,570

2,540

3,250

3,540

3,340

4,060

4,700

4,300

6,320

8,300

7,200

2,350

(1981)

--

300

--

--

31

--

--

19

07225500 6,160

1,450

5,220

9,280

3,170

7,400

11,500

4,830

8,850

14,500

7,650

11,100

16,900

10,400

13,300

19,400

13,600

16,000

25,600

24,200

24,700

10,900

(1969)

--

0

--

--

17

--

--

20

07226200 568

901

595

2,180

2,360

2,210

4,120

3,940

4,070

7,770

6,800

7,390

11,400

9,670

10,600

15,900

13,300

14,500

29,600

25,000

26,800

5,240

(1961)

--

0

--

--

25

--

--

21

07226300 453

753

459

715

1,510

741

925

2,180

987

1,240

3,220

1,390

1,500

4,160

1,760

1,800

5,240

2,200

2,650

8,450

3,510

1,800

(1981)

--

300

--

--

47

--

--

22

07226500 5,290

5,460

5,290

11,300

11,500

11,300

17,300

17,400

17,300

27,600

27,200

27,600

37,700

36,800

37,600

50,300

48,400

50,000

91,700

85,800

90,400

70,000

(1941)

--

2,100

--

--

64

--

--

23

07227000 42,000

15,300

41,300

86,200

33,800

83,400

128,000

53,100

122,000

199,000

88,000

185,000

266,000

124,000

244,000

349,000

169,000

315,000

612,000

327,000

545,000

278,000

(1904)

--

0

--

--

85

--

--

24

07227050 183

70

174

337

208

322

468

364

451

667

653

664

840

944

868

1,040

1,310

1,120

1,600

2,480

1,900

1,170

(1958)

--

0

--

--

47

--

--

25

07227100 5,580

3,30

5,470

9,860

6,480

9,600

13,600

9,770

13,200

19,700

15,400

19,000

25,300

20,700

24,300

31,900

27,200

30,700

52,300

48,000

51,000

26,700

(1960)

--

1,200

--

--

45

--

--

26

07227150 288

432

300

706

950

745

1,130

1,440

1,210

1,880

2,250

2,010

2,620

3,010

2,790

3,530

3,920

3,720

6,460

6,710

6,610

1,450

(1991)

--

20

--

--

14

--

--

27

07227200 965

2,910

1,020

2,560

6,720

2,800

4,280

10,600

4,870

7,420

17,200

8,910

10,600

23,800

13,200

14,600

31,900

18,800

28,200

58,000

37,600

12,300

(1966)

--

400

--

--

38

--

--

28

07227295 42

71

43

112

157

115

184

234

189

310

350

316

433

451

436

582

564

578

1,050

878

995

388

(1956)

--

0

--

--

43

--

--

29
32 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Northwest plateau flood region (2) 

09163700 Cisco Wash near Cisco, Utah 90.7

29.0

0.1241 4,820 30

09181000 Onion Creek near Moab, Utah 20.2

18.8

0.3612 5,640 31

09182600 Salt Wash near Thompson, Utah 1.43

3.90

0.0541 5,050 32

09183000 Courthouse Wash near Moab, Utah 161

162

0.1224 4,770 33

09184000 Mill Creek near Moab, Utah 73.3

74.9

0.2709 7,060 34

09185200 Kane Springs Canyon near Moab, Utah 17.2

17.8

0.2167 6,270 35

09185500 Hatch Wash near La Sal, Utah 366

378

0.0869 6,730 36

09187000 Cottonwood Creek near Monticello, Utah 113

115

0.3029 7,380 37

09314280 Desert Seep Wash near Wellington, Utah 206

191

0.0613 5,750 38

09314500 Price River at Woodside, Utah 1,730

1,540

0.2025 6,500 39

09315200 Saleratus Wash tributary no. 2 near Woodside, Utah 4.92

4.40

0.1740 4,830 40

09315900 Browns Wash tributary near Green River, Utah 3.04

3.89

0.0547 4,320 41

09316000 Browns Wash near Green River, Utah 78.1

75.0

0.2154 5,030 42

09327600 Ferron Creek tributary near Ferron, Utah .618

.960

0.0793 6,180 43

09328300 Sids Draw near Castle Dale, Utah 18.4

17.6

0.1393 6,400 44
Appendix 1 33

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northwest plateau flood region (2)

09163700 2,140

664

2,020

3,030

2,120

2,910

3,580

3,370

3,540

4,220

5,500

4,550

4,670

7,450

5,500

5,090

9,690

6,570

6,010

16,200

9,240

3,650

(1963)

--

2,000

--

--

15

--

--

30

09181000 939

349

878

1,270

1,390

1,290

1,500

2,300

1,690

1,820

3,920

2,490

2,060

5,500

3,320

2,300

7,420

4,300

2,950

13,400

7,000

2,100

(1951)

--

600

--

--

13

--

--

31

09182600 275

113

256

723

318

640

1,190

535

982

2,000

927

1,510

2,780

1,310

2,010

3,740

1,780

2,620

6,750

3,280

4,640

1,380

(1959)

--

0

--

--

15

--

--

32

09183000 2,120

849

2,080

4,620

2,640

4,490

7,040

4,170

6,730

11,200

6,720

10,400

15,200

9,020

13,800

20,100

11,600

17,800

35,800

19,200

30,600

12,300

(1957

--

50

--

--

31

--

--

33

09184000 698

607

696

1,790

1,360

1,760

2,940

2,120

2,860

5,020

3,400

4,760

7,100

4,620

6,600

9,720

6,080

8,850

18,500

10,500

16,200

5,110

(1953)

--

60

--

--

47

--

--

34

09185200 541

326

524

826

906

838

1,030

1,460

1,120

1,320

2,440

1,650

1,540

3,390

2,180

1,780

4,540

2,800

2,370

8,110

4,540

1,290

(1970)

--

200

--

--

15

--

--

35

09185500 505

1,210

518

1,190

1,760

1,220

1,910

2,570

1,960

3,220

3,870

3,320

4,550

5,040

4,650

6,260

6,380

6,290

12,200

10,300

11,600

4,650

(1970)

--

100

--

--

22

--

--

36

09187000 390

730

401

1,270

1,540

1,300

2,330

2,370

2,330

4,410

3,760

4,220

6,650

5,080

6,050

9,580

6,650

8,290

19,900

11,400

15,600

2,200

(1963)

--

0

--

--

17

--

--

37

09314280 536

944

550

854

1,640

900

1,110

2,450

1,240

1,500

3,770

1,840

1,840

4,950

2,430

2,220

6,290

3,110

3,310

10,100

4,950

2,060

(1977)

--

200

--

--

15

--

--

38

09314500 4,260

2,350

4,230

6,330

4,470

6,280

7,730

6,520

7,680

9,530

9,780

9,550

10,900

12,700

11,000

12,200

15,900

12,600

15,400

25,000

16,500

11,200

(1991)

--

2,500

--

--

53

--

--

39

09315200 1,070

191

949

2,390

824

2,010

3,570

1,410

2,810

5,390

2,470

3,990

6,970

3,510

5,090

8,730

4,770

6,430

13,600

8,740

10,700

3,720

(1962)

--

100

--

--

15

--

--

40

09315900 206

155

202

607

547

599

1,070

927

1,040

1,980

1,610

1,850

2,940

2,270

2,650

4,200

3,050

3,640

8,700

5,480

6,960

1,470

(1959)

--

1

--

--

15

--

--

41

09316000 1,790

623

1,710

3,750

2,280

3,570

5,460

3,680

5,120

8,090

6,100

7,500

10,400

8,340

9,660

13,000

11,000

12,200

20,100

18,700

19,500

5,620

(1959)

--

0

--

--

19

--

--

42

09327600 111

79

107

341

191

303

607

322

495

1,110

561

811

1,630

803

1,120

2,290

1,110

1,500

4,530

2,120

2,820

600

(1967)

--

0

--

--

12

--

--

43

09328300 439

336

432

1,190

764

1,120

1,950

1,210

1,760

3,270

1,990

2,760

4,530

2,730

3,680

6,030

3,630

4,770

10,600

6,410

8,230

2,150

(1967)

--

0

--

--

15

--

--

44
34 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Northwest plateau flood region (2)—Continued

09328600 Georges Draw near Hanksville, Utah 6.95

6.63

0.1126 6,940 45

09328700 Temple Wash near Hanksville, Utah 44.2

38.2

0.0898 5,200 46

09330120 Sulphur Creek near Fruita. Utah 54.0

56.7

0.2344 6,980 47

09330200 Pleasant Creek at Notom, Utah 78.5

80.6

0.2334 7,400 48

09330300 Neilson Wash near Caineville, Utah 22.5

22.3

0.0730 4,790 49

09330400 Fremont River near Hanksville, Utah 1,900

1,900

0.1740 7,280 50

09336400 Upper Valley Creek near Escalante, Utah 53.9

---

0.2187 7,520 51

09338900 Deer Creek near Boulder, Utah 65.4

62.7

0.2127 7,360 52

09339200 Twentymile Wash near Escalante, Utah 144

140

0.2699 6,460 53

09350800 Vaqueros Canyon near Gobernador, New Mexico 58.8

60.5

0.1523 7,360 54

09356520 Burro Canyon near Lindrith, New Mexico 9.06

9.11

0.0958 7,270 55

09357200 Gallegos Canyon tributary near Nageezi, New Mexico 0.059

0.200

0.0231 6,650 56

09357230 West Draw near Farmington, New Mexico 0.292

0.320

0.0491 5,980 57

09367400 La Plata River tributary near Farmington, New Mexico 1.13

1.03

0.1019 5,570 58

09367530 Locke Arroyo near Kirtland, New Mexico 2.68

2.96

0.0720 5,500 59
Appendix 1 35

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northwest plateau flood region (2)—Continued

09328600 210

221

211

587

432

561

1,010

687

924

1,830

1,130

1,540

2,680

1,570

2,120

3,800

2,100

2,850

7,750

3,800

5,330

1,650

(1959)

--

10

--

--

14

--

--

45

09328700 139

488

155

381

1,270

469

671

2,020

907

1,270

3,280

1,870

1,940

4,450

2,900

2,890

5,810

4,190

6,680

9,860

8,350

1,880

(1962)

--

20

--

--

10

--

--

46

09330120 524

532

524

1,210

1,180

1,220

1,880

1,840

1,870

2,960

2,960

2,960

3,950

4,030

3,980

5,110

5,320

5,200

8,530

9,260

8,860

2,600

(1961)

--

0

--

--

16

--

--

47

09330200 256

625

268

814

1,220

857

1,460

1,880

1,540

2,690

2,980

2,780

3,940

4,020

3,970

5,540

5,270

5,420

10,800

9,100

9,960

2,040

(1965)

--

0

--

--

14

--

--

48

09330300 1,140

366

1,070

2,250

1,060

2,070

3,220

1,710

2,860

4,720

2,840

4,060

6,040

3,880

5,150

7,550

5,110

6,430

11,800

8,760

10,300

5,450

(1965)

--

350

--

--

15

--

--

49

09330400 4,300

2,440

4,220

7,330

3,620

6,960

9,640

5,150

8,920

12,900

7,580

11,600

15,500

9,740

13,700

18,300

12,200

16,200

25,500

19,100

23,100

15,300

(1973)

--

0

--

--

15

--

--

50

09336400 719

532

708

1,580

1,010

1,500

2,440

1,560

2,240

3,950

2,480

3,440

5,440

3,370

4,560

7,320

4,440

5,940

13,600

7,730

10,500

5,560

(1959)

--

0

--

--

16

--

--

51

09338900 617

578

615

1,430

1,120

1,390

2,170

1,710

2,090

3,320

2,730

3,160

4,340

3,690

4,120

5,500

4,840

5,240

8,700

8,370

8,560

3,820

(1961)

--

300

--

--

19

--

--

52

09339200 1,760

810

1,660

2,910

2,030

2,740

3,820

3,140

3,620

5,120

5,020

5,080

6,210

6,770

6,470

7,390

8,830

8,120

10,600

15,000

12,900

4,620

(1963)

--

600

--

--

10

--

--

53

09350800 158

552

161

409

951

422

704

1,450

740

1,300

2,290

1,390

1,980

3,080

2,120

2,930

4,030

3,100

6,720

6,930

6,760

2,520

(1965)

--

0

--

--

47

--

--

54

09356520 66

248

70

193

414

206

330

648

362

572

1,050

655

806

1,440

950

1,090

1,920

1,310

1,960

3,440

2,400

725

(1981)

--

50

--

--

28

--

--

55

09357200 138

29

129

252

46

223

347

77

288

488

135

377

609

195

458

744

273

559

1,120

540

890

580

(1964)

--

60

--

--

35

--

--

56

09357230 23

57

24

38

129

45

49

218

70

64

383

122

76

550

180

88

761

250

120

1,470

444

74

(1976)

--

0

--

--

21

--

--

57

09367400 59

102

60

185

311

196

333

529

361

619

928

692

918

1,330

1,040

1,310

1,820

1,490

2,640

3,440

2,960

1,130

(1973)

--

24

--

--

27

--

--

58

09367530 106

147

107

250

384

258

394

635

417

639

1,080

710

874

1,520

1,010

1,160

2,060

1,370

2,050

3,760

2,500

812

(1957)

--

0

--

--

35

--

--

59
36 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Northwest plateau flood region (2)—Continued

09367550 Stevens Arroyo near Kirtland, New Mexico 4.72

4.59

0.0569 5,490 60

09367561 Shumway Arroyo near Waterflow, New Mexico 134

73.8

0.1109 5,640 61

09367680 Chaco Wash at Chaco Canyon National Monument, New Mexico 611

578

0.0710 6,700 62

09367840 Yazzie Wash near Mexican Springs, New Mexico 1.99

2.10

0.2106 7,160 63

09367860 Chusca Wash near Mexican Springs, New Mexico 9.78

8.70

0.1922 7,240 64

09367680 Catron Wash at Bisti Trading Post, New Mexico 26.5

26.9

0.1794 6,970 65

09367900 Black Springs Wash near Mexican Springs, New Mexico 7.13

7.05

0.1513 6,690 66

09367930 Hunter Wash at Bisti Trading Post, New Mexico 45.0

45.6

0.0494 6,200 67

09367950 Chaco River near Waterflow, New Mexico 4,350

4,350

0.0681 6,290 68

09367980 Rattlesnake Arroyo near Shiprock, New Mexico 21.3

--

0.0317 5,230 69

09368000 San Juan River at Shiprock, New Mexico 12,700

12,900

0.1463 6,690 70

09368020 Malpais Arroyo near Shiprock, New Mexico 2.02

--

0.0567 5,330 71

09378480 Montezuma Creek near Monticello, Utah 142

117

0.1209 7,030 72

09378950 Comb Wash near Blanding, Utah 10.3

10.3

0.2549 5,810 73

09379000 Comb Wash near Bluff, Utah 276

278

0.2009 5,880 74
Appendix 1 37

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northwest plateau flood region (2)—Continued

09367550 143

188

145

468

435

464

871

706

840

1,690

1,180

1,530

2,590

1,640

2,230

3,820

2,190

3,090

8,340

3,920

6,080

1,550

(1991)

--

20

--

--

21

--

--

60

09367561 183

785

196

783

1,800

847

1,680

2,770

1,820

3,820

4,380

3,960

6,500

5,850

6,280

10,500

7,550

9,300

27,800

12,500

20,100

6,420

(1978)

--

1

--

--

16

--

--

61

09367680 573

1,500

586

1,080

1,980

1,110

1,560

2,850

1,630

2,380

4,230

2,550

3,180

5,450

3,450

4,160

6,830

4,560

7,430

10,800

8,020

4,970

(2003)

--

0

--

--

27

--

--

62

09367840 285

130

277

587

326

560

855

540

802

1,270

928

1,180

1,640

1,320

1,540

2,060

1,820

1,980

3,260

3,470

3,340

1,390

(1941)

--

40

--

--

37

--

--

63

09367860 1,220

256

1,150

2,390

553

2,110

3,440

883

2,830

5,110

1,460

3,820

6,620

2,030

4,690

8,390

2,730

5,760

13,700

4,960

9,380

6,400

(1967)

--

600

--

--

29

--

--

64

09367680 1,720

392

1,600

3,020

828

2,590

4,030

1,300

3,230

5,470

2,110

4,080

6,660

2,890

4,860

7,930

3,830

5,820

11,300

6,750

8,880

4,750

(1967)

--

100

--

--

18

--

--

65

09367900 542

224

532

1,130

517

1,080

1,620

833

1,520

2,350

1,390

2,160

2,970

1,940

2,720

3,650

2,610

3,370

5,450

4,750

5,250

2,250

(1999)

--

320

--

--

50

--

--

66

09367930 826

492

807

1,160

765

1,120

1,390

1,160

1,350

1,680

1,820

1,710

1,900

2,420

2,030

2,120

3,130

2,390

2,650

5,250

3,360

1,570

(1976)

--

400

--

--

18

--

--

67

09367950 3,880

3,480

3,880

5,270

4,450

5,250

6,190

6,180

6,190

7,350

8,850

7,460

8,220

11,100

8,480

9,090

13,500

9,560

11,100

20,200

12,100

7,300

(1969)

--

2,500

--

--

30

--

--

68

09367980 143

357

151

568

660

576

1,230

1,030

1,190

2,900

1,650

2,520

5,150

2,220

3,990

8,780

2,880

5,970

26,900

4,860

14,000

3,800

(1995)

--

0

--

--

17

--

--

69

09368000 14,600

5,510

14,500

25,500

7,830

25,200

34,800

10,800

34,000

49,200

15,300

47,200

62,000

19,200

58,700

76,700

23,300

71,700

120,000

34,400

111,000

80,000

(1929)

--

0

--

--

76

--

--

70

09368020 119

130

120

270

335

277

426

556

449

710

951

776

1,000

1,340

1,110

1,370

1,810

1,540

2,670

3,310

2,940

1,200

(2002)

--

40

--

--

21

--

--

71

09378480 475

805

504

1,140

1,300

1,170

1,790

1,950

1,840

2,900

3,010

2,950

3,960

4,000

3,980

5,240

5,150

5,190

9,220

8,580

8,810

1,720

(1968)

--

0

--

--

10

--

--

72

09378950 746

262

677

1,440

907

1,300

2,090

1,500

1,870

3,150

2,570

2,850

4,150

3,620

3,840

5,360

4,890

5,070

9,160

8,890

8,980

3,430

(1968)

--

100

--

--

10

--

--

73

09379000 1,730

1,070

1,680

3,150

2,710

3,080

4,420

4,150

4,360

6,480

6,560

6,510

8,380

8,750

8,540

10,600

11,300

11,000

17,700

18,600

18,200

8,390

(1968)

--

1,200

--

--

10

--

--

74
38 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Northwest plateau flood region (2)—Continued

09379060 Lukachukai Creek tributary near Lukachukai, Arizona 1.36

1.37

0.0319 5,830 75

09379300 Lime Creek near Mexican Hat, Utah 62.2

32.0

0.1831 5,190 76

09379800 Coyote Creek near Kanab, Utah 89.6

89.0

0.1508 4,840 77

09379820 Buck Tank Draw near Kanab, Utah 4.81

5.25

0.0785 5,100 78

09381800 Paria River near Kanab, Utah 642

647

0.2335 6,260 79

09395600 Wagon Trail wash near Gamerco, New Mexico 0.277

0.380

0.0451 6,760 80

09403780 Kanab Creek near Fredonia, Utah 1,080

1,080

0.1294 5,870 81

09403800 Bitter Seeps Wash tributary near Fredonia, Arizona 2.48

2.85

0.2243 5,050 82

09404500 Mineral Gulch near Mount Carmel, Utah 8.26

7.60

0.1297 5,960 83

09404900 East Fork Virgin River near Springdale, Utah 339

343

0.2449 6,180 84

09406700 South Ash Creek below Mill Creek near Pintura, Utah 11.0

11.0

0.447 6,840 85

09406800 South Ash Creek near Pintura, Utah 13.7

14.0

0.4152 6,590 86

09407200 Ash Creek below West Field Ditch at Toquerville, Utah 200

201

0.2998 5,920 87

09408000 Leeds Creek near Leeds, Utah 15.3

15.5

0.3708 6,130 88

09408150 Virgin River near Hurricane, Utah 700

1,490

0.2830 5,250 89
Appendix 1 39

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northwest plateau flood region (2)—Continued

09379060 20

110

24

46

202

58

74

328

107

126

551

218

182

768

343

255

1,040

505

522

1,890

1,030

227

(1965)

--

12

--

--

14

--

--

75

09379300 1,680

577

1,590

4,150

1,910

3,770

6,560

3,070

5,620

10,500

5,050

8,350

14,200

6,900

10,800

18,600

9,060

13,600

31,400

15,500

22,500

6,600

(1968)

--

100

--

--

15

--

--

76

09379800 1,410

661

1,350

2,740

2,250

2,680

3,850

3,600

3,800

5,490

5,900

5,610

6,880

8,020

7,290

8,390

10,500

9,210

12,500

17,600

14,600

419

(1959)

--

200

--

--

14

--

--

77

09379820 10

189

13

70

558

110

208

924

341

685

1,570

1,020

1,510

2,200

1,860

3,100

2,960

3,020

13,900

5,320

7,560

680

(1969)

--

0

--

--

10

--

--

78

09381800 2,850

1,540

2,780

5,210

3,500

5,020

7,330

5,260

6,970

10,800

8,120

10,000

14,000

10,700

12,900

17,800

13,700

16,200

29,700

22,200

26,500

15,400

(1963)

--

1,000

--

--

16

--

--

79

09395600 75

56

73

172

100

163

264

166

244

414

286

374

551

409

498

710

565

651

1,180

1,090

1,140

437

(1958)

--

10

--

--

24

--

--

80

09403780 871

1,920

896

1,780

3,800

1,880

2,620

5,600

2,880

3,970

8,480

4,650

5,220

11,000

6,350

6,700

13,800

8,350

11,200

21,700

14,000

4,630

(1970)

--

100

--

--

16

--

--

81

09403800 129

142

130

560

653

581

1,190

1,130

1,170

2,640

2,020

2,310

4,380

2,910

3,470

6,890

4,010

4,940

17,000

7,540

10,000

1,950

(1971)

--

0

--

--

14

--

--

82

09404500 315

238

309

931

627

875

1,650

1,020

1,460

3,050

1,710

2,450

4,540

2,380

3,390

6,500

3,200

4,550

13,500

5,760

8,480

3,210

(1963)

--

30

--

--

14

--

--

83

09404900 823

1,170

837

2,050

2,880

2,140

3,280

4,400

3,470

5,360

6,920

5,800

7,330

9,220

8,000

9,690

11,900

10,600

16,900

19,600

18,100

3,540

(1999)

--

100

--

--

13

--

--

84

09406700 207

269

211

528

864

571

869

1,420

985

1,490

2,420

1,790

2,110

3,410

2,620

2,900

4,640

3,670

5,540

8,580

7,010

938

(1966)

--

0

--

--

14

--

--

85

09406800 194

296

199

468

972

532

739

1,600

913

1,200

2,710

1,670

1,630

3,810

2,450

2,140

5,170

3,410

3,720

9,480

6,320

1,850

(1978)

--

0

--

--

10

--

--

86

09407200 265

932

289

829

2,750

1,010

1,480

4,300

1,970

2,730

6,910

3,940

4,030

9,330

5,990

5,700

12,100

8,450

11,400

20,400

15,800

4,420

(1988)

--

0

--

--

41

--

--

87

09408000 151

310

154

664

1,100

686

1,450

1,810

1,480

3,320

3,080

3,280

5,700

4,330

5,340

9,260

5,860

8,170

24,800

10,700

19,200

20,100

(1967)

--

1,500

--

--

37

--

--

88

09408150 6,130

1,590

6,000

10,600

5,220

10,300

14,200

8,070

13,600

19,400

12,800

18,400

23,700

17,000

22,400

28,400

21,700

27,000

41,200

35,200

39,800

1,160

(1995)

--

0

--

--

15

--

--

89
40 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Northwest plateau flood region (2)—Continued

09409100 Santa Clara River above Baker Reservoir near Central, Utah 111

116

0.2783 7,230 90

09409500 Moody Wash near Veyo, Utah 33.5

33.0

0.2953 6,010 91
Appendix 1 41

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northwest plateau flood region (2)—Continued

09409100 63

724

71

207

1,540

263

399

2,360

566

825

3,750

1,320

1,340

5,060

2,220

2,100

6,630

3,420

5,350

11,400

7,600

1,810

(1967)

--

50

--

--

15

--

--

90

09409500 271

434

279

852

1,390

915

1,510

2,250

1,660

2,710

3,750

3,040

3,910

5,190

4,420

5,410

6,920

6,080

10,200

12,200

11,200

1,910

(1967)

--

20

--

--

16

--

--

91
42 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Southeast mountain flood region (3)

08387000 Rio Ruidoso at Hollywood, New Mexico 72.5

120

7,600 92

08387600 Eagle Creek below South Fork near Alto, New Mexico 8.16

8.14

8,570 93

08388000 Rio Ruidoso at Hondo, New Mexico 289

290

7,150 94

08389500 Rio Bonito at Hondo, New Mexico 295

295

6,770 95

08390100 Rio Hondo at Picacho, New Mexico 716

715

6,760 96

08397400 Hyatt Canyon near Cloudcroft, New Mexico 3.35

3.08

8,240 97

08397600 Rio Penasco near Dunken, New Mexico 575

583

7,570 98

08480650 Minnie Hall Draw near Three Rivers, New Mexico 9.80

9.70

6,140 99

08480700 Indian Creek near Three Rivers, New Mexico 6.81

6.80

8,820 100

08481000 Three Rivers at Three Rivers, New Mexico 87.5

96.0

6,160 101

08481100 Tularosa Basin tributary near Three Rivers, New Mexico 10.1

13.8

4,890 102

08482000 Tularosa Creek near Tularosa, New Mexico 149

140

7,600 103
Appendix 1 43

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southeast mountain flood region (3)

08387000 220

481

225

472

1,040

490

730

1,810

772

1,190

2,980

1,300

1,670

4,140

1,840

2,280

5,590

2,560

4,420

10,300

5,120

2,120

(1984)

--

0

--

--

51

--

--

92

08387600 40

87

41

82

170

85

118

240

124

175

348

186

224

444

242

280

553

307

437

864

495

206

(1979)

--

0

--

--

28

--

--

93

08388000 1,000

1,360

1,020

2,640

3,580

2,700

4,690

6,080

4,800

9,130

10,900

9,330

14,500

15,900

14,700

22,300

22,600

22,400

57,400

46,100

54,500

42,700

(1965)

--

220

--

--

40

--

--

94

08389500 2,040

1,630

2,020

5,230

4,470

5,170

8,520

7,720

8,430

14,300

14,000

14,200

19,900

20,700

20,000

26,700

29,400

27,300

48,500

60,700

51,400

28,200

(1965)

--

200

--

--

38

--

--

95

08390100 2,260

2,820

2,320

6,980

8,090

7,160

13,300

14,400

13,600

27,800

27,200

27,600

45,800

41,400

44,200

73,100

60,6300

67,900

198,000

133,000

164,000

115,000

(1965)

--

0

--

--

14

--

--

96

08397400 38

57

38

60

109

63

77

151

82

99

213

110

116

265

133

134

322

159

177

477

227

88

(1993)

--

0

--

--

39

--

--

97

08397600 1,200

1,730

1,220

3,680

4,540

3,720

6,630

7,790

6,710

12,500

14,100

12,600

18,900

21,000

19,100

27,400

30,300

27,700

58,300

64,300

59,400

36,300

(1955)

--

0

--

--

50

--

--

98

08480650 908

278

850

1,830

681

1,680

2,680

1,070

2,400

4,080

1,700

3,540

5,400

2,270

4,560

6,990

2,940

5,740

11,900

4,880

9,210

4,970

(1959)

--

0

--

--

26

--

--

99

08480700 147

71

145

364

135

355

570

188

547

900

269

842

1,200

339

1,100

1,530

4193

1,380

2,480

644

2,130

990

(1961)

--

0

--

--

45

--

--

100

08481000 1,790

1,050

1,730

4,240

2,860

4,070

6,670

4,860

6,370

10,800

8,500

10,300

14,800

12,300

14,100

19,600

16,900

18,800

34,700

32,700

34,000

15,000

(1955)

--

0

--

--

26

--

--

101

08481100 254

581

267

938

1,650

986

1,750

2,770

1,850

3,260

4,660

3,460

4,760

6,440

5,050

6,600

8,520

6,990

12,200

14,700

12,900

2,340

(1955)

--

200

--

--

25

--

--

102

08482000 2,220

747

1,940

4,890

1,830

4,080

7,360

2,980

5,910

11,300

5,090

8,780

15,000

7,250

11,400

19,200

9,990

14,600

31,800

19,400

24,800

9,640

(1938)

--

0

--

--

11

--

--

103
44 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Southeast plains flood region (4)

08379300 Tecolote Creek at Tecolote, New Mexico 119

122

0.1682 7,130 104

08379500 Pecos River near Anton Chico, New Mexico 1,040

1,050

0.1877 7,030 105

08379550 Canon Blanco near Leyba, New Mexico 11.5

11.2

0.0665 7,050 106

08380300 Sandoval Canyon at Gallinas, New Mexico 7.65

7.60

0.1749 7,620 107

08382000 Gallinas River near Lourdes, New Mexico 317

313

0.1357 6,780 108

08382500 Gallinas River near Colonias, New Mexico 620

610

0.1190 6,560 109

08382600 Pecos River above Canon del Uta near Colonias, New Mexico 2,300

2,330

0.1365 6,590 110

08382730 Los Esteros Creek above Santa Rosa Lake, New Mexico 67.3

65.6

0.0311 5,080 111

08382760 Los Esteros Creek tributary above Santa Rosa Lake, New Mexico 14.1

13.7

0.0327 5,000 112

08383000 Pecos River at Santa Rosa, New Mexico 2,700

2,650

0.1216 6,360 113

08383370 Pecos River tributary near Puerto de Luna, New Mexico 0.434

0.370

0.1208 4,720 114

08383500 Pecos River near Puerto de Luna, New Mexico 4,010

3,970

0.0968 6,080 115

08384500 Pecos River below Sumner Dam, New Mexico 4,460

4,390

0.0911 5,890 116

08385530 Alamosa Creek tributary near Jordan, New Mexico 11.1

9.71

0.0194 5,120 117

08385600 Yeso Creek near Fort Sumner, New Mexico 344

242

0.0263 4,770 118
Appendix 1 45

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southeast plains flood region (4)

08379300 962

1,070

964

2,570

2,430

2,560

4,410

3,820

4,310

7,980

6,300

7,460

11,800

8,670

10,700

17,000

11,500

15,200

36,000

20,500

32,000

20,000

(1937)

--

0

--

--

49

--

--

104

08379500 6,110

3,090

6,050

11,200

7,280

11,000

15,100

11,300

14,700

20,500

18,200

20,000

24,700

24,500

24,700

29,200

31,800

29,700

40,100

54,200

41,800

40,300

(1937)

--

0

--

--

85

--

--

105

08379550 227

211

225

681

513

630

1,210

847

1,030

2,210

1,460

1,710

3,260

2,060

2,420

4,610

2,790

3,380

9,310

5,260

6,890

1,440

(1976)

--

0

--

--

12

--

--

106

08380300 84

277

89

281

605

298

559

945

607

1,220

1,590

1,310

2,060

2,230

2,110

3,360

3,010

3,260

9,530

5,540

8,560

2,530

(1966)

--

0

--

--

42

--

--

107

08382000 2,780

1,590

2,620

4,120

3,800

4,030

5,040

6,060

5,500

6,240

10,000

8,520

7,150

13,700

11,200

8,070

18,200

13,800

10,300

32,300

19,400

6,680

(1961)

--

0

--

--

12

--

--

108

08382500 3,240

2,110

3,200

6,090

5,170

6,010

8,590

8,350

8,550

12,500

13,800

12,900

16,000

18,900

17,000

20,100

25,000

21,500

32,300

44,200

34,600

26,700

(1937)

--

1,000

--

--

54

--

--

109

08382600 3,630

4,180

3,650

6,800

10,100

7,190

9,350

16,200

10,900

13,000

26,200

17,800

16,000

35,300

23,400

19,200

46,000

28,400

27,600

79,000

39,600

12,400

(1982)

--

0

--

--

29

--

--

110

08382730 907

480

861

2,610

1,520

2,310

4,540

2,800

3,750

8,220

5,170

6,340

12,100

7,510

9,150

17,100

10,500

13,000

34,500

21,500

27,700

9,200

(1993)

--

0

--

--

25

--

--

111

08382760 133

244

143

609

782

658

1,400

1,450

1,430

3,520

2,740

2,980

6,490

4,060

4,710

11,400

5,820

7,300

36,500

12,400

19,600

7,400

(1977)

--

0

--

--

17

--

--

112

08383000 8,850

4,420

8,710

18,500

11,100

18,000

26,600

17,800

25,100

38,900

29,200

35,900

49,400

39,500

46,100

60,800

51,600

58,100

91,700

89,500

91,200

55,200

(1937)

--

0

--

--

66

--

--

113

08383370 109

112

109

267

349

279

455

636

500

842

1,240

992

1,290

1,960

1,550

1,920

2,960

2,310

4,580

6,860

5,250

2,000

(1987)

--

20

--

--

41

--

--

114

08383500 9,680

4,940

9,530

17,000

12,900

16,600

23,000

21,200

22,700

31,900

35,100

32,700

39,600

47,500

41,800

48,100

62,200

51,700

 72,100

109,000

78,400

48,600

(1942)

--

0

--

--

67

--

--

115

08384500 8,630

5,240

8,550

15,000

14,000

15,000

20,300

23,300

20,700

28,300

38,700

30,400

35,100

52,700

39,000

42,800

69,300

48,000

64,600

122,000

71,900

42,000

(1914)

--

0

--

--

89

--

--

116

08385530 36

155

40

135

505

171

278

950

412

619

1,810

1,020

1,050

2,670

1,660

1,720

3,800

2,490

4,820

8,070

5,870

2,850

(1972)

--

10

--

--

39

--

--

117

08385600 1,390

1,020

1,370

3,620

3,390

3,590

6,150

6,310

6,190

11,100

11,600

11,300

16,300

16,800

16,500

23,400

23,300

23,400

49,700

47,100

48,900

22,900

(1999)

--

100

--

--

50

--

--

118
46 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Average 

basin 

elevation

(feet)

Map

identifier

(fig. 1)

Southeast plains flood region (4)—Continued

08385670 Aragon Creek tributary near Encinoso, New Mexico 5.09

6.07

0.1191 6,680 119

08390500 Rio Hondo at Diamond A Ranch near Roswell, New Mexico 945

947

0.1966 6,580 120

08393200 Rocky Arroyo above Two Rivers Reservoir near Roswell, New Mexico 31.5

31.0

0.0644 4,500 121

08394300 Twin Buttes Canyon tributary near Roswell, New Mexico 5.05

5.01

0.0673 4,500 122

08394500 Rio Felix at Old Highway Bridge near Hagerman, New Mexico 945

932

0.1166 5,240 123

08398500 Rio Penasco at Dayton, New Mexico 1,050

1,060

0.1691 6,630 124

08400000 Fourmile Draw near Lakewood, New Mexico 348

265

0.0881 4,900 125

08401200 South Seven Rivers near Lakewood, New Mexico 217

220

0.0791 4,170 126

08401800 Rocky Arroyo near Carlsbad, New Mexico 250

254

0.0934 4,680 127

08401900 Rocky Arroyo at Highway Bridge near Carlsbad, New Mexico 292

285

0.0948 4,470 128

08405050 Last Chance Canyon tributary near Carlsbad, New Mexico 0.140

0.200

0.0328 4,220 129

08405100 Mosley Canyon near White City, New Mexico 14.4

14.6

0.1251 3,970 130

08405500 Black River above Malaga, New Mexico 374

343

0.1674 4,080 131

08408500 Delaware River near Red Bluff, New Mexico 784

689

0.0813 4,080 132
Appendix 1 47

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southeast plains flood region (4)—Continued

08385670 502

218

487

828

534

788

1,080

879

1,030

1,450

1,540

1,480

1,750

2,220

1,920

2,080

3,070

2,400

2,960

5,980

3,610

1,610

(1961)

--

0

--

--

37

--

--

119

08390500 2,130

3,430

2,150

6,990

8,170

7,060

13,600

12,900

13,500

28,400

21,000

26,300

46,500

28,700

40,500

73,400

37,800

61,800

191,000

66,100

157,000

54,800

(1965)

--

110

--

--

65

--

--

120

08393200 672

611

661

2,400

2,020

2,240

4,590

3,740

4,060

9,090

7,090

7,540

14,000

10,700

11,300

20,700

15,500

16,600

44,800

33,400

36,700

12,000

(1968)

--

0

--

--

18

--

--

121

08394300 207

267

212

1,020

884

986

2,250

1,650

1,960

5,020

3,190

3,810

8,260

4,900

5,940

12,800

7,260

9,050

29,700

16,300

21,800

5,900

(1995)

--

40

--

--

33

--

--

122

08394500 5,150

3,440

5,080

12,900

9,870

12,500

20,400

16,900

19,600

32,800

29,300

31,400

44,200

41,400

43,000

57,400

56,600

57,100

96,100

108,000

99,300

74,000

(1955)

--

1,000

--

--

56

--

--

123

08398500 918

3,260

952

4,480

7,800

4,710

9,870

12,300

10,300

22,300

20,100

21,500

37,100

27,400

33,200

58,100

36,000

49,400

140,000

62,600

115,000

29,800

(1966)

--

110

--

--

53

--

--

124

08400000 379

2,010

416

2,250

6,130

2,660

5,540

10,800

6,850

14,200

19,400

16,600

25,800

28,100

26,900

43,700

39,200

41,400

124,000

77,900

104,000

29,300

(1966)

--

100

--

--

52

--

--

125

08401200 896

1,880

950

5,070

6,470

5,350

12,100

12,000

12,100

29,700

22,500

25,500

52,300

33,600

40,400

86,100

48,500

62,500

229,000

103,000

158,000

25,500

(1965)

--

200

--

--

38

--

--

126

08401800 4,740

1,890

4,110

16,900

5,960

11,400

32,500

10,600

17,000

64,700

19,400

26,500

100,000

28,300

38,200

149,000

40,000

56,100

326,000

81,400

131,000

63,300

(1955)

--

0

--

--

14

--

--

127

08401900 2,290

2,190

2,280

9,180

7,100

8,720

18,100

12,800

16,000

36,200

23,500

28,700

55,500

34,600

42,400

80,600

49,200

61,700

166,000

101,000

133,000

31,600

(1966)

--

200

--

--

41

--

--

128

08405050 103

36

95

253

130

220

401

257

341

647

535

587

877

862

869

1,150

1,340

1,240

1,970

3,320

2,470

683

(1966)

--

0

--

--

35

--

--

129

08405100 1,700

743

1,620

3,320

2,590

3,170

4,730

4,840

4,760

6,920

9,420

8,000

8,880

14,700

11,400

11,100

22,100

15,400

17,600

50,400

26,500

16,400

(1965)

--

100

--

--

44

--

--

130

08405500 2,030

3,890

2,080

7,670

13,000

8,190

15,100

23,500

16,800

30,700

43,400

34,900

48,200

65,000

54,200

72,000

94,000

79,500

160,000

198,000

170,000

74,600

(1966)

--

0

--

--

59

--

--

131

08408500 2,580

3,590

2,620

8,730

12,500

8,190

16,800

23,100

18,200

34,300

42,900

37,400

54,700

63,300

58,100

83,800

90,400

86,300

201,000

189,000

197,000

81,400

(1956)

--

0

--

--

67

--

--

132
48 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Maximum 24-hour

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Map

identifier

(fig. 1)

Northern mountain flood region (5)

07201000 Raton Creek at Raton, New Mexico 12.5

14.4

7,570 5.51 133

07203000 Vermejo River near Dawson, New Mexico 342

301

8,100 3.95 134

07204000 Moreno Creek at Eagle Nest, New Mexico 79.3

73.8

9,360 3.63 135

07204500 Cieneguilla Creek near Eagle Nest, New Mexico 71.6

56.0

9,070 3.65 136

07205000 Sixmile Creek near Eagle Nest, New Mexico 9.48

10.5

9,330 3.64 137

07206400 Clear Creek near Ute Park, New Mexico 7.17

7.44

9,810 3.94 138

07207500 Ponil Creek near Cimarron, New Mexico 184

171

8,310 3.79 139

07208500 Rayado Creek near Cimarron, New Mexico 59.4

65.0

9,640 4.26 140

07214500 Mora River near Holman, New Mexico 62.7

57.0

9,360 4.19 141

07214800 Rio La Casa near Cleveland, New Mexico 22.5

23.0

10,400 4.64 142

07215500 Mora River at La Cueva, New Mexico 178

173

8,620 4.16 143

07216500 Mora River near Golondrinas, New Mexico 267

267

8,180 4.16 144

07217000 Coyote Creek below Black Lake, New Mexico 48.0

48.0

9,260 4.10 145

07217100 Coyote Creek above Guadalupita, New Mexico 75.2

71.0

9,040 4.09 146

07218000 Coyote Creek near Golondrinas, New Mexico 236

215

8,060 4.06 147
Appendix 1 49

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern mountain flood region (5)

07201000 401

298

395

916

850

909

1,420

1,490

1,430

2,260

2,710

2,330

3,060

4,010

3,230

4,030

5,720

4,330

7,060

12,000

7,860

3,990

(1965)

--

0

--

--

47

--

--

133

07203000 1,600

1,230

1,590

3,120

2,530

3,090

4,510

3,720

4,470

6,810

5,600

6,720

8,960

7,310

8,820

11,500

9,320

11,300

19,600

15,400

19,200

12,600

(1965)

--

500

--

--

76

--

--

134

07204000 66

226

68

115

417

120

151

578

160

197

817

215

233

1,020

258

269

1,250

300

353

1,880

399

240

(1946)

--

50

--

--

67

--

--

135

07204500 100

223

102

217

427

222

322

604

332

485

875

505

629

1,110

657

793

1,380

829

1,260

2,140

1,310

505

(1965)

--

10

--

--

66

--

--

136

07205000 25

41

25

49

84

50

71

124

73

106

186

110

138

241

144

176

306

184

288

497

302

128

(1969)

--

6

--

--

70

--

--

137

07206400 24

40

25

48

81

50

72

117

75

110

175

117

148

225

156

193

284

204

341

455

355

151

(1965)

--

0

--

--

39

--

--

138

07207500 410

623

414

1,270

1,270

1,270

2,330

1,850

2,300

4,530

2,770

4,340

7,010

3,600

6,580

10,500

4,560

9,620

23,800

7,450

21,200

14,700

(2004)

--

0

--

--

60

--

--

139

07208500 145

294

146

348

566

353

575

799

583

1,020

1,150

1,020

1,500

1,450

1,490

2,140

1,790

2,120

4,620

2,770

4,470

9,000

(1965)

--

20

--

--

82

--

--

140

07214500 561

305

543

1,630

598

1,480

2,860

854

2,400

5,220

1,250

3,960

7,710

1,590

5,490

11,000

1,980

7,450

22,400

3,110

14,300

4,700

(1954)

--

0

--

--

21

--

--

141

07214800 193

160

191

449

307

428

717

431

653

1,200

616

1,030

1,700

775

1,380

2,350

953

1,830

4,580

1,460

3,330

2,260

(1959)

--

0

--

--

14

--

--

142

07215500 518

786

522

832

1,590

850

1,060

2,320

1,110

1,380

3,450

1,470

1,630

4,470

1,770

1,890

5,650

2,070

2,550

9,150

2,840

1,530

(1941)

--

200

--

--

73

--

--

143

07216500 740

1,200

746

1,530

2,510

1,550

2,350

3,720

2,410

3,890

5,660

3,990

5,500

7,430

5,640

7,650

9,520

7,800

15,700

15,900

15,700

14,000

(1952)

--

200

--

--

80

--

--

144

07217000 42

232

49

175

463

206

386

666

439

929

982

945

1,670

1,260

1,520

2,870

1,580

2,330

8,920

2,520

5,730

913

(1958)

--

0

--

--

12

--

--

145

07217100 115

343

124

331

686

363

600

991

657

1,170

1,460

1,230

1,820

1,880

1,840

2,760

2,360

2,640

6,600

3,780

5,660

1,820

(1965)

--

0

--

--

17

--

--

146

07218000 555

1,010

561

1,210

2,150

1,240

1,860

3,200

1,920

2,980

4,910

3,090

4,070

6,490

4,230

5,420

8,350

5,630

9,830

14,100

10,100

4,050

(1961)

--

110

--

--

76

--

--

147
50 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Maximum 24-hour

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Map

identifier

(fig. 1)

Northern mountain flood region (5)—Continued

07220000 Sapello River at Sapello, New Mexico 132

132

7,800 4.37 148

08247500 San Antonio River at Ortiz, Colorado 114

110

9,270 3.83 149

08248000 Los Pinos River near Ortiz, Colorado 152

167

9,930 4.33 150

08252500 Costilla Creek above Costilla Dam, New Mexico 31.3

25.1

10,700 3.67 151

08253000 Casias Creek near Costilla, New Mexico 10.5

16.6

10,700 3.66 152

08253500 Santistevan Creek near Costilla, New Mexico 2.42

2.15

11,200 3.71 153

08255000 Ute Creek near Amalia, New Mexico 11.1

12.0

10,900 3.76 154

08263000 Latir Creek near Cerro, New Mexico 10.5

10.5

11,100 3.81 155

08264000 Red River near Red River, New Mexico 18.9

19.1

11,000 3.91 156

08265000 Red River near Questa, New Mexico 111

113

10,100 3.65 157

08267000 Red River at mouth, near Questa, New Mexico 187

190

9,890 3.50 158

08267500 Rio Hondo near Valdez, New Mexico 36.8

36.2

10,500 3.71 159

08268500 Arroyo Hondo at Arroyo Hondo, New Mexico 66.1

65.6

9,530 3.45 160

08269000 Rio Pueblo de Taos near Taos, New Mexico 57.6

66.6

9,520 3.58 161

08271000 Rio Lucero near Arroyo Seco, New Mexico 16.5

16.6

10,900 3.79 162
Appendix 1 51

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern mountain flood region (5)—Continued

07220000 2,470

859

2,250

4,190

1,980

3,700

5,530

3,090

4,830

7,450

4,980

6,600

9,040

6,790

8,230

10,800

9,000

10,100

15,300

16,100

15,600

6,420

(1966)

--

300

--

--

17

--

--

148

08247500 501

368

499

786

690

783

988

961

987

1,260

1,360

1,260

1,460

1,710

1,480

1,670

2,100

1,700

2,190

3,200

2,240

1,750

(1937)

--

300

--

--

80

--

--

149

08248000 1,310

632

1,300

1,800

1,140

1,780

2,120

1,550

2,100

2,530

2,140

2,510

2,830

2,630

2,820

3,130

3,170

3,130

3,840

4,650

3,880

3,160

(1941)

--

800

--

--

85

--

--

150

08252500 59

89

59

138

152

138

229

200

228

412

268

404

619

322

598

908

380

864

2,090

532

1,930

3,870

(1954)

--

10

--

--

66

--

--

151

08253000 60

37

60

100

65

99

130

89

128

171

122

168

204

150

200

238

180

234

326

261

321

196

(1994)

--

15

--

--

68

--

--

152

08253500 9

11

9

13

20

13

15

27

16

19

38

20

21

48

22

24

57

25

30

85

32

20

(1995)

--

5

--

--

67

--

--

153

08255000 45

41

45

65

72

66

78

97

81

94

132

103

106

161

119

117

193

136

145

277

176

88

(1955)

--

30

--

--

10

--

--

154

08263000 47

40

47

77

69

77

100

92

99

132

125

132

159

152

158

188

181

187

263

257

263

126

(1965)

--

0

--

--

33

--

--

155

08264000 107

71

105

166

122

163

208

162

203

263

219

257

305

264

299

348

313

343

453

443

452

264

(1952)

--

0

--

--

24

--

--

156

08265000 244

266

244

416

452

417

548

596

550

734

797

737

885

960

888

1,050

1,140

1,050

1,460

1,600

1,470

886

(1942)

--

0

--

--

74

--

--

157

08267000 311

364

313

472

606

478

585

792

598

731

1,050

758

843

1,260

882

957

1,480

1,010

1,230

2,060

1,310

730

(1964)

--

0

--

--

28

--

--

158

08267500 158

109

157

263

187

261

344

249

340

459

337

452

552

408

543

653

484

642

916

687

901

541

(1941)

--

50

--

--

70

--

--

159

08268500 154

159

154

319

286

318

470

391

466

717

545

703

945

674

920

1,220

817

1,170

2,040

1,210

1,950

1,060

(1948)

--

0

--

--

51

--

--

160

08269000 170

162

170

362

297

360

525

410

519

766

577

753

968

720

950

1,190

878

1,160

1,770

1,320

1,730

1,050

(1979)

--

0

--

--

70

--

--

161

08271000 122

58

122

181

100

179

222

134

218

275

181

270

315

219

310

356

261

351

455

370

451

310

(1979)

--

0

--

--

76

--

--

162
52 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Maximum 24-hour

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Map

identifier

(fig. 1)

Northern mountain flood region (5)—Continued

08275000 Rio Fernando de Taos near Taos, New Mexico 60.3

71.7

9,070 3.51 163

08275500 Rio Grande del Rancho near Talpa, New Mexico 78.7

83.0

9,360 4.06 164

08275600 Rio Chiquito near Talpa, New Mexico 37.7

37.0

9,460 3.82 165

08277470 Rio Pueblo near Penasco, New Mexico 98.9

--

9,850 4.38 166

08278500 Rio Santa Barbara near Penasco, New Mexico 39.1

38.0

11,000 4.60 167

08279000 Embudo Creek at Dixon, New Mexico 317

305

9,000 3.83 168

08281200 Wolf Creek near Chama, New Mexico 27.7

27.7

9,760 4.60 169

08283500 Rio Chama at Park View, New Mexico 392

405

9,780 4.33 170

08284000 Rito de Tierra Amarilla at Tierra Amarilla, New Mexico 49.7

49.7

8,770 3.72 171

08284100 Rio Chama near La Puente, New Mexico 468

480

9,570 4.20 172

08284300 Horse Lake Creek above Heron Reservoir near Park View, New 

Mexico

42.7

45.0

7,900 3.46 173

08284500 Willow Creek near Park View, New Mexico 192

193

7,740 3.36 174

08286650 Canjilon Creek above Abiquiu Reservoir, New Mexico 143

144

7,970 3.13 175

08286700 Arroyo Seco near Abiquiu, New Mexico 160

162

7,900 3.08 176

08288000 El Rito near El Rito, New Mexico 47.6

50.5

9,130 3.64 177
Appendix 1 53

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern mountain flood region (5)—Continued

08275000 59

170

63

113

324

126

161

457

188

238

660

291

308

837

383

390

1,040

488

636

1,610

788

219

(1973)

--

20

--

--

19

--

--

163

08275500 161

328

164

293

632

304

396

892

419

541

1,290

586

658

1,630

724

783

2,020

869

1,100

3,120

1,240

644

(1991)

--

40

--

--

47

--

--

164

08275600 72

145

74

152

279

160

225

395

241

345

571

375

455

725

496

586

898

637

982

1,390

1,050

309

(1979)

--

10

--

--

24

--

--

165

08277470 399

471

404

1,020

877

1,000

1,690

1,210

1,590

2,920

1,700

2,560

4,190

2,120

3,480

5,810

2,580

4,620

11,400

3,880

8,400

2,200

(1994)

--

0

--

--

13

--

--

166

08278500 238

221

237

384

391

385

505

525

508

688

713

692

848

867

851

1,030

1,030

1,030

1,560

1,480

1,540

838

(1995)

--

125

--

--

17

--

--

167

08279000 1,030

880

1,030

1,540

1,620

1,550

1,950

2,240

1,960

2,540

3,150

2,570

3,030

3,930

3,090

3,590

4,800

3,660

5,140

7,230

5,260

4,200

(1977)

--

700

--

--

67

--

--

168

08281200 559

203

515

920

410

812

1,210

593

1,040

1,650

875

1,380

2,020

1,120

1,680

2,440

1,410

2,040

3,620

2,250

3,100

1,900

(1965)

--

0

--

--

13

--

--

169

08283500 4,010

1,390

3,910

5,770

2,440

5,540

6,980

3,270

6,620

8,550

4,430

8,030

9,750

5,390

9,150

11,000

6,440

10,300

13,900

9,260

13,300

10,000

(1926)

--

0

--

--

33

--

--

170

08284000 282

187

277

540

379

522

742

553

712

1,030

829

987

1,260

1,080

1,220

1,500

1,360

1,470

2,110

2,210

2,130

1,000

(1975)

--

210

--

--

24

--

--

171

08284100 3,750

1,490

3,700

6,070

2,630

5,900

7,830

3,530

7,530

10,300

4,810

9,800

12,300

5,870

11,700

14,500

7,020

13,700

20,300

10,200

19,200

11,200

--

--

1,000

--

--

49

--

--

172

08284300 121

153

122

255

337

262

398

517

411

666

819

690

950

1,100

978

1,330

1,450

1,350

2,760

2,530

2,710

3,960

(1968)

--

50

--

--

33

--

--

173

08284500 1,150

479

1,120

1,870

999

1,780

2,420

1,480

2,300

3,230

2,270

3,070

3,910

3,000

3,750

4,650

3,860

4,510

6,670

6,480

6,640

4,500

(1942)

--

300

--

--

34

--

--

174

08286650 641

283

624

1,180

566

1,120

1,680

825

1,570

2,510

1,240

2,280

3,300

1,610

2,970

4,270

2,040

3,810

7,420

3,320

6,550

4,620

(1998)

--

300

--

--

33

--

--

175

08286700 310

298

309

577

594

581

793

865

814

1,110

1,300

1,180

1,370

1,680

1,500

1,660

2,140

1,850

2,440

3,480

2,840

810

(1962)

--

0

--

--

12

--

--

176

08288000 220

157

218

405

305

399

571

434

557

835

632

808

1,080

806

1,040

1,360

1,000

1,310

2,240

1,570

2,130

1,240

(1942)

--

0

--

--

38

--

--

177
54 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Maximum 24-hour

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Map

identifier

(fig. 1)

Northern mountain flood region (5)—Continued

08289000 Rio Ojo Caliente at La Madera, New Mexico 409

419

8,520 3.37 178

08290000 Rio Chama near Chamita, New Mexico 3,120

3,140

7,750 3.34 179

08291000 Santa Cruz River at Cundiyo, New Mexico 91.5

86.0

9,140 3.70 180

08294300 Rio Nambe at Nambe Falls near Nambe, New Mexico 34.0

25.1

9,180 3.73 181

08295000 Rio Nambe near Nambe, New Mexico 37.1

38.2

9,020 3.68 182

08295200 Rio en Medio near Santa Fe, New Mexico 0.606

0.630

11,500 4.10 183

08302200 North Fork Tesuque Creek near Santa Fe, New Mexico 1.61

1.60

10,900 4.04 184

08313350 Rito de los Frijoles in Bandelier National Monument, New Mexico 18.3

17.5

7,700 3.78 185

08313400 Bland Canyon near Cochiti, New Mexico 7.40

7.57

7,870 3.76 186

08316000 Santa Fe River near Santa Fe, New Mexico 17.5

18.2

9,280 3.83 187

08317500 Galisteo Creek at Canoncito, New Mexico 11.4

11.3

7,660 3.52 188

08321500 Jemez River below East Fork near Jemez Springs, New Mexico 172

173

8,860 4.10 189

08321900 Rio de las Vacas near Senorita, New Mexico 27.5

26.8

9,820 4.71 190

08323000 Rio Guadalupe at Box Canyon near Jemez, New Mexico 233

235

8,520 3.94 191

08324000 Jemez River near Jemez, New Mexico 467 8,570 3.93 192
Appendix 1 55

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern mountain flood region (5)—Continued

08289000 1,050

763

1,050

1,750

1,400

1,740

2,270

1,940

2,260

3,000

2,740

2,980

3,580

3,430

3,570

4,200

4,210

4,200

5,790

6,380

5,820

3,990

(1998)

--

200

--

--

73

--

--

178

08290000 5,440

4,420

5,430

8,180

8,130

8,180

10,200

11,200

10,200

13,000

15,900

13,100

15,200

20,000

15,400

17,600

24,600

17,900

23,700

37,500

24,300

15,000

(1920)

--

0

--

--

85

--

--

179

08291000 303

281

303

590

531

589

853

746

848

1,280

1,070

1,270

1,680

1,350

1,660

2,160

1,660

2,120

3,650

2,560

3,560

2,420

(1931)

--

50

--

--

74

--

--

180

08294300 87

129

89

221

255

225

374

366

373

678

539

641

1,010

692

913

1,470

866

1,270

3,230

1,370

2,540

1,090

(1967)

--

70

--

--

16

--

--

181

08295000 201

136

199

622

271

587

1,130

391

1,020

2,170

580

1,810

3,320

747

2,640

4,870

939

3,730

10,700

1,500

7,770

5,580

(1955)

--

0

--

--

33

--

--

182

08295200 8

5

8

14

9

13

18

14

17

23

20

23

28

25

27

32

31

32

44

48

45

20

(1975)

--

3

--

--

20

--

--

183

08302200 9

11

9

15

22

16

20

31

22

29

45

33

36

58

42

45

71

52

70

111

82

33

(1966)

--

0

--

--

11

--

--

184

08313350 26

109

29

94

263

107

201

425

228

481

711

525

878

993

905

1,550

1,340

1,500

5,310

2,520

4,370

3,030

(1978)

--

10

--

--

28

--

--

185

08313400 33

50

33

79

122

82

122

199

130

192

337

210

255

474

285

328

646

373

535

1,220

626

243

(1985)

--

22

--

--

42

--

--

186

08316000 90

81

90

227

165

225

386

241

378

702

360

675

1,050

467

998

1,540

590

1,440

3,440

955

3,140

1,500

(1921)

--

0

--

--

87

--

--

187

08317500 786

59

704

1,140

142

956

1,390

230

1,120

1,740

387

1,360

2,010

542

1,580

2,300

735

1,850

3,040

1,380

2,610

2,000

(1966)

--

0

--

--

43

--

--

188

08321500 532

696

537

959

1,370

985

1,290

1,960

1,350

1,750

2,860

1,880

2,110

3,660

2,320

2,500

4,570

2,790

3,480

7,230

3,970

1,700

(1975)

--

0

--

--

28

--

--

189

08321900 274

216

272

390

438

393

460

634

473

542

937

578

599

1,210

657

651

1,510

733

763

2,410

898

530

(1958)

--

250

--

--

38

--

--

190

08323000 444

826

451

875

1,640

902

1,240

2,370

1,300

1,790

3,490

1,910

2,250

4,500

2,440

2,780

5,650

3,020

4,200

9,050

4,610

3,190

(1941)

--

50

--

--

47

--

--

191

08324000 1,330

1,420

1,330

2,390

2,720

2,400

3,240

3,840

3,270

4,480

5,540

4,540

5,500

7,020

5,610

6,610

8,700

6,770

9,580

13,500

9,870

5,900

(1958)

--

0

--

--

60

--

--

192
56 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average 

basin 

elevation

(feet)

Maximum 24-hour

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Map

identifier

(fig. 1)

Northern mountain flood region (5)—Continued

08377900 Rio Mora near Terrero, New Mexico 53.2

53.2

10,400 4.75 193

08378500 Pecos River near Pecos, New Mexico 170

189

10,100 4.37 194

08380500 Gallinas Creek near Montezuma, New Mexico 76.0

84.0

8,640 4.57 195

08381000 Gallinas Creek at Montezuma, New Mexico 79.7

87.0

8,510 4.57 196
Appendix 1 57

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern mountain flood region (5)—Continued

08377900 253

346

254

435

645

442

579

891

596

789

1,250

822

964

1,550

1,010

1,160

1,890

1,220

1,680

2,820

1,770

937

(1991)

--

0

--

--

41

--

--

193

08378500 622

694

623

1,160

1,230

1,160

1,580

1,650

1,590

2,200

2,260

2,210

2,720

2,750

2,720

3,270

3,290

3,270

4,740

4,750

4,740

4,500

(1929)

--

0

--

--

82

--

--

194

08380500 555

544

555

1,490

1,180

1,480

2,520

1,780

2,480

4,410

2,750

4,280

6,360

3,650

6,100

8,840

4,720

8,410

17,300

8,020

16,300

7,120

(1966)

--

0

--

--

88

--

--

195

08381000 490

579

492

1,320

1,270

1,310

2,250

1,930

2,220

4,040

3,020

3,920

5,950

4,020

5,690

8,460

5,220

7,990

17,600

8,970

16,200

11,600

(1904)

--

0

--

--

58

--

--

196
58 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Map

identifier

(fig. 1)

Central mountain valley flood region (6)

08313100 Canada Ancha tributary near Santa Fe, New Mexico 0.577

1.23

197

08316600 North Frijoles Arroyo near Santa Fe, New Mexico 0.356

0.330

198

08316650 Arroyo de los Frijoles, Locust Tree, near Santa Fe, New Mexico 1.40

1.30

199

08316700 Arroyo de los Frijoles near Santa Fe, New Mexico 2.80

2.92

200

08317600 San Cristobal Arroyo near Galusteo, New Mexico 114

116

201

08317700 Tarhole Canyon near Galisteo, New Mexico 2.06

2.15

202

08317720 Canada de la Cueva near Galisteo, New Mexico 1.77

1.79

203

08318000 Galisteo Creek at Domingo, New Mexico 661

640

204

08318900 San Pedro Creek near Golden, New Mexico 44.7

45.2

205

08330500 Tijeras Arroyo at Albuquerque, New Mexico 74.7

75.3

206

08330600 Tijeras Arroyo near Albuquerque, New Mexico 134

128

207

08331100 Belen Highline Canal tributary near Los Lunas, New Mexico 0.180

0.160

208

08331650 Canada Montoso near Scholle, New Mexico 37.0

35.0

209

08334000 Rio Puerco above Arroyo Chico near Guadalupe, New Mexico 420

420

210

08340500 Arroyo Chico near Guadalupe, New Mexico 1,360

1,390

211
Appendix 1 59

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Central mountain valley flood region (6)

08313100 17

105

19

71

255

80

147

397

170

316

636

367

517

860

588

802

1,130

882

1,940

1,940

1,940

298

(1967)

--

5

--

--

32

--

--

197

08316600 141

86

135

242

211

236

320

330

323

429

531

462

518

721

590

612

948

739

856

1,640

1,160

360

(1966)

--

20

--

--

13

--

--

198

08316650 510

153

464

1,010

361

864

1,450

558

1,160

2,100

884

1,590

2,680

1,190

1,980

3,320

1,550

2,440

5,120

2,650

3,820

1,900

(1957)

--

40

--

--

14

--

--

199

08316700 473

205

444

1,540

475

1,290

2,910

728

2,130

5,840

1,140

3,500

9,240

1,530

4,790

14,000

1,990

6,420

33,300

3,370

12,200

5,340

(1951)

--

30

--

--

14

--

--

200

08317600 1,820

971

1,800

3,500

2,050

3,420

5,010

3,010

4,830

7,440

4,540

7,040

9,680

5,920

9,050

12,300

7,520

11,400

20,300

12,200

18,600

13,200

(1999)

--

800

--

--

44

--

--

201

08317700 315

180

309

731

420

703

1,120

647

1,050

1,740

1,020

1,600

2,310

1,370

2,080

2,960

1,780

2,650

4,840

3,030

4,300

2,440

(1952)

--

250

--

--

34

--

--

202

08317720 114

169

117

255

396

268

397

611

426

647

964

711

896

1,290

993

1,210

1,690

1,340

2,250

2,870

2,450

919

(1982)

--

0

--

--

25

--

--

203

08318000 6,440

2,030

6,240

11,000

4,090

10,400

14,700

5,900

13,500

20,100

8,720

18,000

24,700

11,200

21,700

29,800

14,100

25,900

43,900

22,500

38,000

22,800

(1966)

--

2,000

--

--

29

--

--

204

08318900 928

655

922

1,550

1,410

1,550

2,120

2,100

2,120

3,060

3,200

3,070

3,950

4,210

3,980

5,040

5,380

5,090

8,610

8,830

8,640

10,800

(1955)

--

600

--

--

49

--

--

205

08330500 702

813

704

1,870

1,730

1,870

3,070

2,560

3,040

5,150

3,880

5,000

7,140

5,070

6,840

9,530

6,460

9,020

16,900

10,600

15,600

6,500

(1967)

--

450

--

--

52

--

--

206

08330600 665

1,040

670

1,160

2,180

1,190

1,570

3,200

1,640

2,160

4,820

2,330

2,670

6,280

2,950

3,230

7,970

3,640

4,770

12,900

5,550

2,930

(1988)

--

0

--

--

50

--

--

207

08331100 199

65

192

310

161

297

390

254

373

497

412

483

580

562

576

666

742

680

878

1,300

960

754

(1965)

--

0

--

--

41

--

--

208

08331650 369

605

374

1,090

1,310

1,100

1,970

1,960

1,970

3,780

2,990

3,670

5,820

3,930

5,500

8,660

5,020

7,920

19,800

8,270

16,800

5,600

(1997)

--

0

--

--

42

--

--

209

08334000 1,890

1,680

1,890

3,070

3,420

3,090

3,900

4,960

3,950

4,970

7,370

5,140

5,780

9,530

6,080

6,590

12,000

7,070

8,490

19,200

9,480

6,940

(1967)

--

1,000

--

--

53

--

--

210

08340500 4,030

2,750

4,010

6,800

5,430

6,740

9,040

7,770

8,960

12,400

11,400

12,300

15,200

14,600

15,100

18,300

18,300

18,300

27,200

29,000

27,400

15,200

(1972)

--

1,000

--

--

43

--

--

211
60 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Map

identifier

(fig. 1)

Central mountain valley flood region (6)—Continued

08343100 Grants Canyon at Grants, New Mexico 11.8

13.0

212

08351500 Rio San Jose at Correo, New Mexico 3,650

3,660

213

08352500 Rio Puerco at Rio Puerco, New Mexico 6,130

6,590

214

08353000 Rio Puerco near Bernardo, New Mexico 7,220

7,350

215

08354000 Rio Salado near San Acacia, New Mexico 1,380

1,380

216

08358600 Chupadera Wash tributary at Bingham, New Mexico 0.765

1.29

217

08480150 White Oaks Canyon near Carrizozo, New Mexico 35.1

31.0

218

08489000 Big Draw near Mountainair, New Mexico 4.08

3.90

219
Appendix 1 61

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Central mountain valley flood region (6)—Continued

08343100 175

375

179

508

837

525

844

1,260

879

1,400

1,950

1,470

1,900

2,590

2,010

2,470

3,330

2,630

4,050

5,550

4,360

1,550

(1963)

--

0

--

--

34

--

--

212

08351500 1,420

4,160

1,440

3,070

8,020

3,160

4,560

11,300

4,750

6,880

16,500

7,320

8,950

21,000

9,630

11,300

26,100

12,300

18,000

40,800

19,700

7,150

(1955)

--

0

--

--

52

--

--

213

08352500 5,180

5,170

5,180

10,300

9,830

10,300

14,900

13,800

14,900

22,500

20,000

22,400

29,600

25,400

29,200

38,000

31,500

37,300

63,800

48,900

62,000

37,700

(1929)

--

0

--

--

51

--

--

214

08353000 2,690

5,540

2,710

5,480

10,500

5,560

7,980

14,700

8,150

12,000

21,200

12,300

15,500

26,900

16,100

19,700

33,400

20,500

31,900

51,700

33,300

18,800

(1941)

--

0

--

--

65

--

--

215

08354000 7,250

2,770

7,120

15,100

5,460

14,500

21,300

7,820

20,000

30,000

11,500

27,300

36,800

14,700

33,000

44,000

18,400

39,100

61,200

29,100

54,500

36,200

(1965)

--

1,000

--

--

38

--

--

216

08358600 79

119

80

223

285

227

362

443

370

582

706

601

774

953

807

987

1,250

1,040

1,550

2,140

1,680

620

(1980)

--

0

--

--

40

--

--

217

08480150 1,110

591

1,090

1,980

1,290

1,940

2,770

1,920

2,690

4,050

2,930

3,900

5,250

3,850

5,030

6,690

4,930

6,380

11,300

8,110

10,600

7,690

(1959)

--

0

--

--

44

--

--

218

08489000 45

240

47

182

550

195

370

841

401

773

1,320

835

1,230

1,760

1,310

1,850

2,280

1,930

4,170

3,840

4,100

1,710

(1954)

--

30

--

--

45

--

--

219
62 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Map

identifier

(fig. 1)

Southwest desert flood region (7)

08360000 Alamosa Creek near Monticello, New Mexico 401

403

220

08361650 Percha Creek near Kingston, New Mexico 21.4

21.5

221

08477500 Mimbres River near Faywood, New Mexico 472

440

222

08477580 Silva Creek at Silver City, New Mexico 21.4

10.0

223

08477600 San Vicente Arroyo at Silver City, New Mexico 26.6

26.5

224

08478000 Cameron Creek at Central, New Mexico 12.1

18.8

225

08478600 Mimbres Basin tributary near Florida, New Mexico 0.212

0.550

226

08478800 Seventysix Draw tributary near Waterloo, New Mexico 1.80

0.200

227

08479300 Deer Creek tributary near Antelope Wells, New Mexico 4.46

4

228

09430500 Gila River near Gila, New Mexico 1,850

1,860

229

09431000 Gila River near Cliff, New Mexico 2,380

2,440

230

09431500 Gila River near Redrock, New Mexico 2,820

2,830

231

09443000 San Francisco River near Alma, New Mexico 1,520

1,550

232

09536350 Surprise Canyon near Dos Cabezas, Arizona 0.662

0.650

233
Appendix 1 63

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southwest desert flood region (7)

08360000 1,670

2,230

1,680

3,570

4,600

3,640

5,310

6,770

5,490

8,130

10,300

8,560

10,700

13,700

11,400

13,700

17,700

14,700

22,600

33,300

24,600

10,800

(1964)

--

500

--

--

57

--

--

220

08361650 499

589

503

867

1,170

894

1,200

1,670

1,270

1,730

2,470

1,900

2,230

3,190

2,490

2,830

4,020

3,190

4,740

6,440

5,270

3,740

(1972)

--

0

--

--

42

--

--

221

08477500 2,970

2,400

2,920

6,510

4,960

6,250

9,860

7,320

9,200

15,400

11,200

13,800

20,600

14,900

18,100

26,800

19,300

23,200

45,700

33,100

39,600

20,000

(1939)

--

300

--

--

30

--

--

222

08477580 639

589

636

1,350

1,170

1,320

1,940

1,670

1,890

2,820

2,470

2,720

3,560

3,190

3,430

4,350

4,020

4,230

6,440

6,440

6,440

2,670

(1960)

--

350

--

--

36

--

--

223

08477600 1,950

651

1,730

3,130

1,290

2,550

4,050

1,860

3,100

5,400

2,750

3,910

6,540

3,550

4,700

7,800

4,490

5,680

11,300

7,220

8,700

6,800

(1938)

--

0

--

--

13

--

--

224

08478000 583

455

577

1,030

893

1,020

1,380

1,270

1,360

1,880

1,870

1,880

2,290

2,400

2,320

2,730

3,010

2,820

3,870

4,760

4,160

2,200

(1959)

--

400

--

--

43

--

--

225

08478600 141

72

137

250

134

235

333

185

304

448

260

393

540

322

465

636

388

545

877

561

760

480

(1991)

--

0

--

--

36

--

--

226

08478800 54

71

55

101

131

104

142

180

148

205

252

216

260

312

275

324

377

340

505

544

518

290

(2,000)

--

0

--

--

34

--

--

227

08479300 232

289

234

442

560

454

643

792

667

988

1,150

1,030

1,330

1,460

1,370

1,750

1,820

1,770

3,170

2,810

3,030

1,680

(1960)

--

100

--

--

36

--

--

228

09430500 1,910

4,470

1,950

5,640

9,410

5,830

10,200

14,000

10,500

19,300

21,800

19,700

29,500

29,300

29,500

43,500

38,500

42,300

96,900

68,100

89,400

35,200

(1985)

--

0

--

--

77

--

--

229

09431000 6,280

5,020

6,180

9,920

10,600

10,000

12,500

15,800

13,200

16,000

24,700

18,500

18,600

33,200

23,500

21,400

43,700

29,100

28,100

77,800

43,800

17,200

(19

--

4,000

--

--

29

--

--

230

09431500 6,060

5,420

6,040

12,200

11,500

12,200

18,300

17,200

18,100

28,800

26,800

28,500

39,300

36,100

38,600

52,500

47,600

51,300

97,300

85,100

94,200

48,800

(1979)

--

2,000

--

--

71

--

--

231

09443000 5,130

4,090

5,030

13,000

8,580

12,000

21,800

12,800

18,800

38,900

19,800

29,700

57,300

26,600

40,200

82,100

34,800

53,800

175,000

61,300

104,000

56,600

(1984)

--

300

--

--

23

--

--

232

09536350 45

121

52

111

229

134

171

319

215

261

453

344

339

567

453

424

691

567

648

1,020

854

191

(1969)

--

20

--

--

14

--

--

233
64 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Map

identifier

(fig. 1)

Southwest mountain flood region (8)

09177500 Taylor Creek near Gateway, Colorado 15.3

12.0

234

09183500 Mill Creek at Sheley Tunnel near Moab, Utah 26.4

26.8

235

09317997 Huntington Creek near Huntington, Utah 177

178

236

09326500 Ferron Creek near Ferron, Utah 136

138

237

09327550 Ferron Creek below Paradise Ranch near Clawson, Utah 218

221

238

09329900 Pine Creek near Bicknell, Utah 107

104

239

09330500 Muddy Creek near Emery, Utah 108

105

240

09331500 Ivie Creek above diversions near Emery, Utah 45.1

50.0

241

09332100 Muddy Creek below Interstate 70 near Emery, Utah 414

418

242

09332500 Muddy Creek below Ivie Creek near Emery, Utah 430

440

243

09337000 Pine Creek near Escalante, Utah 66.7

68.1

244

09337500 Escalante River near Escalante, Utah 315

320

245

09338000 East Fork Boulder Creek near Boulder, Utah 20.4

21.4

246

09338500 East Fork Deer Creek near Boulder, Utah 1.70

1.90

247

09378170 South Creek above reservoir near Monticello, Utah 8.25

8.64

248
Appendix 1 65

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southwest mountain flood region (8)

09177500 111

80

107

264

183

242

407

284

364

637

452

561

844

610

743

1,080

798

958

1,770

1,380

1,600

555

(1948)

--

0

--

--

23

--

--

234

09183500 179

123

171

400

272

367

626

413

553

1,030

644

870

1,440

858

1,180

1,960

1,110

1,560

3,730

1,870

2,840

1,080

(1993)

--

0

--

--

23

--

--

235

09317997 832

565

796

1,580

1,090

1,460

2,190

1,540

1,990

3,090

2,230

2,770

3,840

2,820

3,440

4,660

3,500

4,200

6,870

5,390

6,290

1,680

(1984)

--

0

--

--

17

--

--

236

09326500 796

458

782

1,300

898

1,270

1,730

1,280

1,680

2,370

1,880

2,310

2,950

2,400

2,870

3,610

2,980

3,520

5,550

4,660

5,420

4,180

(1952)

--

300

--

--

70

--

--

237

09327550 1,240

667

1,120

2,130

1,270

1,850

2,800

1,780

2,390

3,730

2,550

3,180

4,480

3,220

3,860

5,260

3,970

4,620

7,230

6,060

6,670

2,670

(1985)

--

0

--

--

11

--

--

238

09329900 74

378

92

232

754

305

422

1,090

565

798

1,600

1,040

1,210

2,060

1,490

1,750

2,580

2,050

3,720

4,070

3,860

707

(1968)

--

0

--

--

16

--

--

239

09330500 460

380

457

981

759

962

1,490

1,090

1,440

2,360

1,610

2,240

3,200

2,070

3,000

4,250

2,600

3,940

7,650

4,090

6,950

3,340

(1952)

--

0

--

--

62

--

--

240

09331500 190

189

190

392

402

394

577

598

583

875

913

887

1,150

1,200

1,170

1,470

1,530

1,490

2,430

2,520

2,460

1,240

(1965)

--

50

--

--

24

--

--

241

09332100 1,220

1,110

1,210

2,210

2,020

2,190

3,080

2,770

3,040

4,500

3,870

4,380

5,800

4,810

5,590

7,350

5,840

7,010

12,100

8,660

11,300

9,400

(1981)

--

300

--

--

31

--

--

242

09332500 1,100

1,150

1,100

1,690

2,080

1,750

2,110

2,840

2,260

2,680

3,970

2,990

3,120

4,920

3,580

3,580

5,980

4,190

4,720

8,840

5,730

2,890

(1951)

--

200

--

--

17

--

--

243

09337000 175

259

179

353

535

368

515

784

544

772

1,180

829

1,010

1,530

1,090

1,280

1,940

1,380

2,090

3,130

2,260

1,010

(1967)

--

50

--

--

53

--

--

244

09337500 814

896

817

1,680

1,650

1,680

2,430

2,290

2,410

3,560

3,240

3,520

4,540

4,050

4,470

5,630

4,950

5,530

8,620

7,440

8,440

4,550

(1998)

--

100

--

--

50

--

--

245

09338000 199

100

181

303

226

282

375

346

365

467

545

496

537

730

610

607

950

735

773

1,620

1,060

483

(1964)

--

0

--

--

20

--

--

246

09338500 20

14

19

64

37

55

122

62

95

248

108

173

398

154

258

614

212

373

1,520

405

819

350

(1955)

--

0

--

--

20

--

--

247

09378170 47

49

47

100

117

104

143

185

157

204

302

241

253

414

316

304

550

400

430

976

628

163

(1987)

--

30

--

--

20

--

--

248
66 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Map

identifier

(fig. 1)

Southwest mountain flood region (8)—Continued

09378630 Recapture Creek near Blanding, Utah 3.88

3.77

249

09378650 Recapture Creek below Johnson Creek near Blanding, Utah 37.1

50.2

250

09383500 Nutrioso Creek above Nelson Reservoir near Springerville, Arizona 78.2

83.3

251

09383600 Fish Creek near Eagar, Arizona 17.0

16.9

252

09386100 Largo Creek near Quemado, New Mexico 138

151

253

09386900 Rio Nutria near Ramah, New Mexico 71.2

71.4

254

09408400 Santa Clara River near Pine Valley, Utah 18.3

18.7

255

09442650 Romero Creek near Arizona State line near Luna, New Mexico 9.37

10.8

256

09442660 Trout Creek near Luna, New Mexico 31.0

31.9

257

09489200 Pacheta Creek near Maverick, Arizona 16.4

14.8

258

09489700 Big Bonito Creek near Fort Apache, Arizona 114

119

259

09490800 North Fork White River near Greer, Arizona 39.3

40.2

260

09491000 North Fork White River near McNary, Arizona 69.1

78.2

261
Appendix 1 67

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Southwest mountain flood region (8)—Continued

09378630 13

27

14

34

67

38

55

110

64

95

185

114

136

258

164

188

349

227

368

641

436

142

(1987)

--

1

--

--

40

--

--

249

09378650 120

162

125

330

349

335

546

523

538

914

804

867

1,260

1,060

1,170

1,670

1,360

1,530

2,890

2,260

2,590

695

(1981)

--

0

--

--

18

--

--

250

09383500 107

294

122

256

600

313

407

875

517

672

1,310

863

933

1,690

1,180

1,260

2,140

1,560

2,310

3,420

2,710

700

(1983)

--

10

--

--

17

--

--

251

09383600 62

87

67

163

198

175

258

305

278

408

484

446

539

651

598

684

851

773

1,070

1,460

1,280

236

(1964)

--

50

--

--

13

--

--

252

09386100 289

463

296

520

908

549

706

1,300

768

979

1,890

1,100

1,210

2,420

1,380

1,460

3,010

1,690

2,150

4,690

2,510

1,320

(1954)

--

250

--

--

48

--

--

253

09386900 316

273

313

628

561

619

882

820

870

1,250

1,230

1,240

1,550

1,600

1,560

1,870

2,020

1,910

2,700

3,250

2,830

1,840

(1995)

--

50

--

--

36

--

--

254

09408400 67

92

68

149

209

156

234

321

248

386

508

411

541

682

572

737

889

773

1,420

1,520

1,440

776

(1966)

--

10

--

--

46

--

--

255

09442650 55

54

54

136

128

134

225

202

216

392

328

363

567

448

509

794

594

693

1,610

1,050

1,310

480

(1967)

--

0

--

--

19

--

--

256

09442660 160

140

158

467

306

444

831

462

754

1,560

716

1,320

2,350

949

1,920

3,430

1,220

2,690

7,430

2,040

5,490

2,790

(1983)

--

0

--

--

48

--

--

257

09489200 105

84

102

179

193

182

234

298

252

312

473

363

374

637

460

439

832

567

607

1,430

855

323

(1973

--

20

--

--

23

--

--

258

09489700 644

397

616

1,510

790

1,360

2,370

1,140

2,000

3,840

1,670

3,040

5,240

2,140

4,000

6,950

2,680

5,150

12,300

4,220

8,790

4,510

(1978)

--

0

--

--

24

--

--

259

09490800 188

169

184

261

364

290

315

544

392

390

835

559

451

1,100

704

516

1,410

863

689

2,330

1,280

510

(1973)

--

100

--

--

13

--

--

260

09491000 404

266

393

740

549

713

1,030

803

987

1,480

1,210

1,420

1,890

1,570

1,810

2,350

1,980

2,260

3,720

3,190

3,590

2,310

(1983

--

0

--

--

39

--

--

261
68 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Map

identifier

(fig. 1)

Northeastern Arizona flood region (9)

09385800 Little Colorado River tributary near St. Johns, Arizona 0.351

0.350

0.0985 262

09386200 Carrizo Creek near Salt Lake, New Mexico 1,820

560

0.0827 263

09386950 Zuni River above Black Rock Reservoir, New Mexico 831

848

0.0871 264

09387050 Galestena Canyon tributary near Black Rock, Arizona 18.5

19.0

0.0729 265

09390500 Show Low Creek near Lakeside, Arizona 67.9

68.6

0.0579 266

09395100 Carr Lake Draw tributary near Holbrook, Arizona 1.16

1.28

0.0298 267

09395200 Decker Wash near Snowflake, Arizona 15.8

16.5

0.0640 268

09395500 Puerco River near Gallup, New Mexico 548

558

0.1106 269

09395900 Black Creek near Lupton, Arizona 491

494

0.1188 270

09396100 Puerco River near Chambers, Arizona 2,150

2,460

0.0976 271

09396400 Dead Wash near Holbrook, Arizona 0.750

1.22

0.0653 272

09397100 Leroux Wash near Holbrook, Arizona 806

809

0.0471 273

09397500 Chevelon Fork below Wildcat Canyon near Winslow, Arizona 270

271

0.1132 274

09397800 Brookbank Canyon near Heber, Arizona 27.5

27.9

0.0802 275

09398000 Chevelon Creek near Winslow, Arizona 983

785

0.0686 276
Appendix 1 69

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern Arizona flood region (9)

09385800 51

40

50

126

100

121

205

164

194

352

280

328

503

398

465

697

545

641

1,380

1,030

1,250

326

(1965)

--

0

--

--

14

--

--

262

09386200 329

2,420

353

1,260

5,640

1,400

2,490

8,740

2,840

5,110

13,800

5,850

8,070

18,500

9,120

12,100

23,900

13,400

27,300

39,700

28,900

8,380

(1959)

--

250

--

--

38

--

--

263

09386950 673

1,710

700

1,970

4,010

2,090

3,270

6,250

3,540

5,420

9,960

5,970

7,360

13,400

8,150

9,570

17,400

10,600

15,700

29,400

17,400

5,200

(1974)

--

540

--

--

30

--

--

264

09387050 76

226

79

174

545

187

274

867

305

454

1,420

522

636

1,950

738

867

2,600

1,010

1,660

4,590

1,900

660

(1970)

--

0

--

--

46

--

--

265

09390500 292

359

294

1,210

857

1,190

2,550

1,350

2,420

5,640

2,170

5,110

9,420

2,950

8,280

15,000

3,870

12,800

38,100

6,650

31,400

5,550

(1979)

--

0

--

--

51

--

--

266

09395100 27

29

27

73

70

73

120

111

117

198

183

193

271

251

264

356

335

348

606

595

602

140

(1966)

--

0

--

--

13

--

--

267

09395200 52

189

61

212

455

253

448

724

520

1,010

1,180

1,070

1,710

1,630

1,670

2,750

2,160

2,490

7,350

3,800

5,640

1,170

(1966)

--

0

--

--

14

--

--

268

09395500 1,800

1,670

1,790

4,370

3,960

4,340

6,710

6,200

6,660

10,300

9,980

10,300

13,500

13,500

13,500

16,900

17,700

17,000

26,100

30,300

26,700

12,000

(1972)

--

1,000

--

--

41

--

--

269

09395900 2,650

1,670

2,570

4,360

3,960

4,310

5,670

6,220

5,770

7,500

10,100

8,020

8,980

13,600

9,970

10,600

17,900

12,100

14,700

30,800

17,700

7,680

(1982)

--

1,000

--

--

19

--

--

270

09396100 5,130

2,990

5,030

9,560

6,980

9,340

13,100

10,800

12,900

18,300

17,200

18,100

22,600

23,000

22,700

27,300

29,800

27,700

39,700

49,700

41,000

17,800

(1971)

--

1,000

--

--

33

--

--

271

09396400 202

42

173

373

105

293

515

170

387

730

285

543

917

400

695

1,130

541

876

1,710

996

1,430

743

(1967)

--

100

--

--

13

--

--

272

09397100 4,610

1,040

4,100

6,190

2,440

5,380

7,220

3,750

6,280

8,500

5,890

7,710

9,440

7,830

8,950

10,400

10,100

10,300

12,500

16,600

13,600

8,460

(1993)

--

2,000

--

--

14

--

--

273

09397500 1,940

1,200

1,910

5,980

2,850

5,720

10,900

4,490

10,100

20,800

7,280

18,500

31,800

9,910

27,500

46,600

13,000

39,700

102,000

22,600

84,900

24,700

(1993)

--

0

--

--

45

--

--

274

09397800 153

296

163

306

712

360

439

1,130

563

642

1,860

904

821

2,550

1,210

1,020

3,380

1,550

1,590

5,970

2,500

666

(1964)

--

80

--

--

13

--

--

275

09398000 2,460

1,540

2,430

6,310

3,610

6,130

10,700

5,590

10,200

19,200

8,840

17,800

28,400

11,800

26,000

40,900

15,300

36,800

87,900

25,500

77,200

33,600

(1979)

--

550

--

--

49

--

--

276
70 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Map

identifier

(fig. 1)

Northern Arizona flood region (9)—Continued

09398500 Clear Creek below Willow Creek near Winslow, Arizona 316

317

0.1533 277

09400200 Steamboat Wash tributary near Ganado, Arizona 0.156

0.320

0.0863 278

09400290 Teshbito Wash tributary near Holbrook, Arizona 19.8

20.0

0.0675 279

09400300 Teshbito Wash near Holbrook, Arizona 68.0

60.3

0.0690 280

09400530 Cow Canyon near Winslow, Arizona 6.25

7.53

0.0177 281

09400560 Oraibi Wash tributary near Oraibi, Arizona 1.76

1.78

0.1545 282

09400565 Polacca Wash tributary near Chinle, Arizona 6.33

6.45

0.1236 283

09400580 Castle Butte Wash near Winslow, Arizona 5.16

5.57

0.0726 284

09400650 Sinclair Wash at Flagstaff, Arizona 7.44

8.11

0.0884 285

09401220 Cedar Wash near Cameron, Arizona 558

579

0.0744 286

09401245 Klethla Valley tributary near Kayenta, Arizona 0.800

0.790

0.1247 287

09401260 Moenkopi Wash at Moenkopi, Arizona 1,590

1,630

0.0955 288

09404050 Spring Valley Wash tributary near Williams, Arizona 2.51

5.00

0.0320 289

09404310 Yampai Canyon tributary near Peach Springs, Arizona 0.107

0.200

0.0833 290

09502800 Williamson Valley Wash near Paulden, Arizona 253

255

0.1196 291
Appendix 1 71

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northeastern Arizona flood region (9)—Continued

09398500 2,420

1,640

2,400

7,180

3,900

6,930

12,500

6,180

11,800

22,400

10,100

20,500

32,500

13,800

29,300

45,300

18,200

40,400

87,500

31,800

77,400

29,100

(1993)

--

0

--

--

45

--

--

277

09400200 47

24

44

163

61

135

311

100

233

619

171

416

966

244

615

1,440

334

884

3,240

636

1,900

383

(1964)

--

10

--

--

14

--

--

278

09400290 611

220

556

758

530

711

843

842

843

940

1,380

1,060

1,010

1,890

1,230

1,070

2,510

1,420

1,200

4,410

1,830

890

(1970)

--

400

--

--

15

--

--

279

09400300 663

412

635

1,040

985

1,030

1,320

1,550

1,370

1,680

2,510

1,900

1,970

3,420

2,350

2,260

4,500

2,830

2,990

7,800

4,060

1,580

(1967)

--

400

--

--

14

--

--

280

09400530 65

44

63

127

105

124

179

165

176

255

263

257

318

354

327

388

462

406

575

787

622

253

(1964)

--

30

--

--

15

--

--

281

09400560 124

126

124

237

312

249

333

511

370

481

874

573

609

1,240

761

755

1,690

977

1,170

3,170

1,600

383

(1965)

--

30

--

--

14

--

--

282

09400565 365

200

343

707

489

659

985

791

930

1,390

1,330

1,370

1,720

1,860

1,760

2,080

2,510

2,220

3,010

4,590

3,480

1,130

(1975)

--

200

--

--

13

--

--

283

09400580 86

120

90

283

291

285

523

467

506

1,000

775

913

1,520

1,070

1,330

2,200

1,440

1,860

4,630

2,590

3,710

860

(1975)

--

10

--

--

13

--

--

284

09400650 74

167

81

166

406

202

258

653

340

416

1,090

589

571

1,510

828

762

2,020

1,120

1,380

3,640

2,010

401

(1970)

--

0

--

--

11

--

--

285

09401220 1,510

1,240

1,480

4,460

2,920

4,070

7,840

4,540

6,670

14,200

7,240

11,200

20,900

9,730

15,600

29,500

12,700

21,200

59,000

21,300

40,000

10,400

(1969)

--

100

--

--

10

--

--

286

09401245 121

72

116

191

179

189

241

294

252

307

504

354

359

713

442

412

976

538

543

1,840

787

290

(1971)

--

60

--

--

15

--

--

287

09401260 3,710

2,530

3,650

5,740

5,920

5,760

7,210

9,190

7,420

9,180

14,600

9,840

10,700

19,600

11,800

12,300

25,400

13,900

16,300

42,600

19,100

10,100

(1983)

--

2,500

--

--

31

--

--

288

09404050 20

44

22

58

108

65

101

171

115

182

279

207

266

383

299

374

508

413

745

895

790

190

(1968)

--

0

--

--

14

--

--

289

09404310 14

19

15

36

49

39

62

81

67

110

139

120

161

198

175

229

273

245

473

521

491

177

(1966)

--

0

--

--

13

--

--

290

09502800 1,350

1,210

1,340

3,840

2,880

3,720

6,570

4,550

6,220

11,600

7,390

10,600

16,700

10,100

15,100

23,100

13,300

20,600

44,400

23,000

38,800

14,800

(1983)

--

0

--

--

25

--

--

291
72 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge

Appendix 1. Selected basin, climatic, and flood characteristics; maximum peak discharge recorded; and low-discharge threshold for 

[Peak discharge values in cubic feet per second: first line, station value used in regression analysis; second line, predicted value determined by using regression 

geographic information system analysis; second line, previously published from manual delineation (Dempster, 1983)]

Gagingstation

number

Gaging-station name

Drainage

area

(square 

miles)

Average

basin slope

(percent

[feet/foot*100])

Map

identifier

(fig. 1)

Northern Arizona flood region (9)—Continued

09503800 Volunteer Wash near Bellemont, Arizona 135

131

0.0726 292

09505220 Rocky Gulch near Rimrock, Arizona 1.85

1.40

0.1201 293
Appendix 1 73

gaging stations.—Continued 

equation; third line, weighted value determined with skew coefficient with station and predicted value. --, no data. Drainage area: first line determined from 

Gagingstation

number

Peak discharge

(cubic feet per year) Map

identifier

(fig. 1)

Recurrence interval

(years)

Maximum peak

discharge recorded

(year)

Low-

 discharge

threshold

Record 

length

(years) 2 5 10 25 50 100 500

Northern Arizona flood region (9)—Continued

09503800 507

602

516

1,130

1,430

1,180

1,670

2,250

1,810

2,500

3,630

2,820

3,200

4,920

3,720

3,980

6,450

4,730

6,060

11,100

7,490

2,300

(1,550)

--

200

--

--

14

--

--

292

09505220 38

106

40

122

262

131

235

428

254

490

725

523

804

1,020

840

1,270

1,390

1,300

3,380

2,580

3,220

1,550

(1970)

--

10

--

--

30

--

--

293
Blank Page
Appendix 2

Appendix 2—Basin and Climatic Characteristics Determined 

Using Geographical Information System 
Blank Page
Appendix 2 77

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

07153500 16.85 5.26 5.51 4.25 5.38 3.88 0.113 611 6,340 0

07154400 16.13 4.44 6.20 4.83 5.42 4.25 0.105 111 5,120 90

07199000 18.41 6.15 5.53 4.37 4.65 3.54 0.199 197 7,650 90

07201000 18.49 5.98 5.54 4.36 5.51 3.99 0.211 12.50 7,570 225

07201200 17.03 5.33 5.42 4.18 5.39 3.89 0.136 4.48 6,940 225

07203000 19.49 7.74 5.50 4.35 3.95 3.14 0.225 342 8,100 90

07203600 15.86 4.10 5.06 3.84 5.05 3.56 0.021 6.76 6,320 225

07204000 20.60 9.47 3.58 2.72 3.63 3.16 0.243 79.3 9,360 270

07204500 20.58 8.63 3.78 2.97 3.65 2.98 0.174 71.6 9,070 270

07205000 18.60 7.93 3.27 2.49 3.64 3.09 0.271 9.48 9,330 90

07206400 20.60 9.06 5.08 4.27 3.94 3.24 0.450 7.17 9,810 45

07207500 19.95 8.02 5.26 4.20 3.79 3.17 0.251 184 8,310 90

07208500 22.99 9.58 5.07 4.01 4.26 3.44 0.224 59.4 9,640 45

07211000 18.74 6.71 4.85 3.80 3.94 3.25 0.202 937 8,160 45

07211500 17.88 5.92 5.15 4.00 4.42 3.40 0.156 2,760 7,220 135

07213700 15.89 4.11 5.05 3.87 5.01 3.88 0.050 3.23 6,090 180

07214000 17.42 5.47 5.11 3.93 4.49 3.46 0.133 3,810 6,860 135

07214500 25.82 11.73 4.49 3.53 4.19 3.77 0.266 62.7 9,360 90

07214800 34.89 16.92 5.25 4.21 4.64 4.06 0.317 22.5 10,400 45

07215500 25.22 10.84 4.93 3.85 4.16 3.74 0.254 178 8,620 90

07216500 23.70 9.57 5.03 3.90 4.17 3.71 0.226 267 8,180 90

07217000 23.05 9.33 4.12 3.21 4.10 3.44 0.128 48.0 9,260 45

07217100 22.51 8.97 4.38 3.42 4.09 3.53 0.179 75.2 9,040 90

07218000 20.78 7.33 4.92 3.76 4.06 3.56 0.169 236 8,060 90

07220000 23.83 9.30 5.21 4.05 4.37 3.90 0.222 132 7,800 135

Appendix 2. Basin and climatic characteristics determined using Geographical Information System. [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]
78 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 07220900 16.97 4.56 5.17 3.87 4.73 3.64 0.056 17.1 6,730 180 07221000 20.15 6.82 5.11 3.91 4.34 3.68 0.140 1,040 7,310 90 07221500 17.70 5.53 5.09 3.90 4.51 3.54 0.128 5,900 6,780 135 07221600 15.06 4.13 5.02 3.75 5.01 3.88 0.179 2.28 4,810 180 07222000 17.62 5.49 5.09 3.89 4.53 3.56 0.127 6,080 6,730 135 07222300 15.35 4.39 4.88 3.69 5.07 4.01 0.161 64.1 5,270 135 07222500 15.23 4.4 4.57 3.59 4.89 3.76 0.072 474 5380 0 07222800 14.50 4.29 4.65 3.74 5.16 4.10 0.042 24.5 4,530 45 07225000 14.87 4.43 5.10 4.04 5.67 4.06 0.032 80.8 5,020 0 07225300 15.62 4.73 5.18 4.07 5.36 4.33 0.057 15.2 4,290 0 07225500 16.84 4.63 5.22 3.98 5.37 4.00 0.059 249 6,430 135 07226200 15.48 3.83 6.00 4.69 5.74 4.21 0.092 45.6 4,940 135 07226300 16.07 4.07 5.28 4.08 5.18 4.03 0.025 96.1 5,990 0 07226500 15.87 4.11 5.66 4.40 5.46 4.10 0.047 2,030 5,490 0 07227000 16.61 4.92 5.17 4.00 4.90 3.79 0.098 10,800 6,060 135 07227050 16.30 4.83 5.73 4.57 5.51 4.59 0.138 0.54 4,840 180 07227100 16.21 4.86 5.35 4.23 5.41 4.45 0.049 798 4,250 0 07227150 17.03 5.08 5.09 4.05 5.57 4.67 0.051 34.1 4,150 0 07227200 15.58 3.81 6.12 4.77 5.51 4.30 0.060 498 5,060 135 07227295 15.48 3.88 6.14 4.79 5.46 4.44 0.021 1.23 5,180 180

08247500 25.82 17.05 3.14 2.36 3.83 3.24 0.133 114 9,270 90

08248000 31.31 21.58 3.42 2.51 4.33 3.19 0.202 152 9,930 90

08252500 25.90 14.90 4.46 3.33 3.67 3.26 0.248 31.3 10,700 90

08253000 24.80 13.80 4.26 3.15 3.66 3.32 0.256 10.5 10,700 90

08253500 24.50 13.30 4.07 2.97 3.71 3.35 0.373 2.42 11,200 135
Appendix 2 79

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

08255000 23.70 12.60 4.11 2.95 3.76 3.41 0.332 11.1 10,900 225

08263000 30.51 17.00 3.70 2.78 3.81 3.29 0.398 10.5 11,100 0

08264000 30.60 16.80 3.68 2.73 3.91 3.37 0.361 18.9 11,000 90

08265000 26.70 13.80 3.42 2.61 3.65 3.19 0.399 111 10,100 90

08267000 24.20 12.40 3.34 2.56 3.50 3.08 0.364 187 9,890 315

08267500 25.90 13.90 3.68 2.75 3.71 3.22 0.518 36.8 10,500 225

08268500 20.58 10.38 3.31 2.53 3.45 3.00 0.403 66.1 9,530 225

08269000 22.54 11.52 3.37 2.59 3.58 3.00 0.360 57.6 9,520 180

08271000 25.57 13.62 3.74 2.90 3.79 3.26 0.514 16.5 10,900 180

08275000 18.92 9.07 3.35 2.59 3.51 2.86 0.288 60.3 9,070 315

08275500 25.62 14.70 3.61 2.80 4.06 3.26 0.308 78.7 9,360 315

08275600 23.74 12.62 3.57 2.74 3.82 3.12 0.317 37.7 9,460 0

08277470 31.89 18.36 4.19 3.31 4.38 3.69 0.301 98.9 9,850 90

08278500 34.91 20.36 4.64 3.72 4.60 3.74 0.374 39.1 11,000 270

08279000 24.50 13.50 3.60 2.87 3.83 3.21 0.269 317 9,000 270

08281200 35.06 24.11 3.33 2.56 4.60 2.93 0.233 27.7 9,760 315

08283500 31.25 20.88 3.32 2.53 4.33 2.88 0.198 392 9,780 225

08284000 24.49 14.95 3.13 2.42 3.72 2.82 0.145 49.7 8,770 225

08284100 30.26 20.02 3.27 2.50 4.20 2.85 0.186 468 9,570 225

08284300 19.87 10.78 3.03 2.46 3.46 2.54 0.143 42.7 7,900 225

08284500 19.03 10.07 2.96 2.36 3.36 2.51 0.115 192 7,740 225

08286650 18.61 10.24 2.81 2.13 3.13 2.78 0.137 143 7,970 270

08286700 17.55 9.33 2.78 2.11 3.08 2.73 0.143 160 7,900 270

08288000 24.78 15.67 3.11 2.32 3.64 3.20 0.186 47.6 9,130 90

08289000 19.51 11.20 3.12 2.34 3.37 2.88 0.180 409 8,520 90
80 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 08290000 19.20 10.45 3.01 2.32 3.34 2.65 0.163 3,120 7,750 90 08291000 20.95 10.71 3.85 3.20 3.70 3.00 0.366 91.5 9,140 270 08294300 22.24 11.04 4.19 3.46 3.73 2.98 0.419 34.0 9,180 315 08295000 19.97 9.63 4.09 3.37 3.68 2.95 0.402 37.1 9,020 270 08295200 32.40 17.60 5.13 4.10 4.10 3.21 0.382 0.61 11,500 315 08302200 29.50 15.60 4.99 3.99 4.04 3.16 0.363 1.61 10,900 270 08313100 14.60 5.70 2.94 2.31 3.28 2.62 0.035 0.58 6,520 45 08313350 19.62 8.45 3.95 2.95 3.78 2.81 0.286 18.3 7,700 180 08313400 21.14 9.44 3.96 2.98 3.76 2.81 0.439 7.40 7,870 90 08316000 22.16 10.80 4.72 3.72 3.83 3.01 0.442 17.5 9,280 135 08316600 12.90 5.07 3.00 2.53 3.13 2.59 0.076 0.36 7,260 180 08316650 12.80 5.01 3.00 2.51 3.12 2.58 0.070 1.40 7,170 315 08316700 13.00 5.01 2.99 2.46 3.13 2.57 0.071 2.80 7,080 315 08317500 17.10 6.51 3.79 2.87 3.52 2.77 0.252 11.4 7,660 135 08317600 15.64 5.81 3.65 2.86 3.54 2.86 0.090 114 7,130 225 08317700 13.27 4.94 3.62 2.83 3.42 2.82 0.099 2.06 6,660 270 08317720 12.89 4.92 3.34 2.68 3.25 2.68 0.056 1.77 6,260 180 08318000 13.54 5.14 3.41 2.71 3.30 2.70 0.100 661 6,470 270 08318900 16.80 7.56 3.59 2.76 3.47 2.56 0.146 44.7 6,900 90 08321500 25.69 12.77 4.29 3.27 4.10 2.94 0.227 172 8,860 270

08321900 37.83 22.44 4.17 3.15 4.71 3.18 0.135 27.5 9,820 180

08323000 26.04 13.83 4.12 3.14 3.94 2.83 0.225 233 8,520 135

08324000 24.50 12.50 4.12 3.14 3.93 2.83 0.234 467 8,570 135

08330500 16.70 7.47 3.54 2.76 3.54 2.53 0.202 74.7 6,980 90

08330600 14.72 6.48 3.38 2.68 3.31 2.45 0.183 134 6,690 270
Appendix 2 81

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

08331100 9.44 3.71 2.64 2.30 2.75 2.26 0.050 0.18 5,360 315

08331650 14.40 5.66 3.44 2.73 3.77 2.73 0.089 37.0 6,310 315

08334000 14.10 6.61 3.13 2.44 3.10 2.40 0.136 420 7,100 270

08340500 10.50 4.35 2.81 2.22 2.69 2.18 0.079 1,360 6,800 0

08343100 11.02 4.37 2.83 2.26 2.70 2.23 0.170 11.8 7,020 180

08351500 12.33 5.19 2.87 2.23 2.90 2.40 0.087 3,650 7,240 0

08352500 11.60 4.87 2.88 2.27 2.82 2.32 0.092 6,130 6,900 0

08353000 11.53 4.80 2.88 2.27 2.83 2.34 0.088 7,220 6,850 0

08354000 11.85 4.17 3.03 2.45 3.10 2.54 0.126 1,380 6,710 90

08358600 11.52 3.98 3.34 2.73 3.55 2.94 0.087 0.77 5,610 315

08360000 15.17 5.16 3.76 3.00 3.56 2.92 0.191 401 7,320 135

08361650 18.16 6.60 4.29 3.44 4.18 3.09 0.371 21.4 6,840 90

08377900 38.90 19.50 4.78 3.89 4.75 4.38 0.280 53.2 10,400 315

08378500 34.00 17.20 4.82 3.82 4.37 3.85 0.305 170 10,100 270

08379300 19.38 6.41 4.58 3.57 4.38 3.88 0.168 119 7,130 90

08379500 19.15 7.62 4.17 3.24 4.03 3.46 0.188 1,040 7,030 135

08379550 14.41 4.95 3.57 2.84 3.72 3.06 0.067 11.5 7,050 0

08380300 19.25 6.33 5.07 3.92 4.52 4.04 0.175 7.65 7,620 270

08380500 27.34 11.87 5.14 4.04 4.57 4.29 0.310 76.0 8,640 90

08381000 26.96 11.59 5.13 4.03 4.57 4.28 0.310 79.7 8,510 90

08382000 19.40 6.30 4.81 3.74 4.53 3.92 0.136 317 6,780 0

08382500 16.70 5.16 4.55 3.54 4.52 3.73 0.119 620 6,560 0

08382600 17.03 6.11 4.18 3.25 4.21 3.49 0.137 2,300 6,590 13508382730 14.71 4.61 4.39 3.48 4.94 3.75 0.031 67.3 5,080 135

08382760 14.71 4.64 4.36 3.42 4.93 3.73 0.033 14.1 5,000 135
82 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 08383000 16.67 5.90 4.18 3.26 4.30 3.52 0.122 2,700.0 6,360 0 08383370 14.38 4.48 4.57 3.73 5.01 3.89 0.121 0.43 4,720 270 08383500 15.70 5.38 4.12 3.24 4.41 3.52 0.097 4,010 6,080 0 08384500 15.59 5.28 4.21 3.32 4.51 3.58 0.091 4,460 5,890 0 08385530 16.70 4.78 5.54 4.50 5.65 4.60 0.019 11.1 5,120 135 08385600 14.05 4.38 4.66 3.76 5.03 3.88 0.026 344 4,770 0 08385670 17.92 5.50 4.39 3.29 4.18 3.49 0.119 5.09 6,680 45 08387000 23.45 8.09 4.46 3.37 4.50 3.73 0.275 72.5 7,600 135 08387600 27.78 9.73 4.86 3.54 4.80 3.84 0.425 8.16 8,570 135 08388000 20.43 6.74 4.45 3.31 4.40 3.64 0.250 289 7,150 0 08389500 18.84 5.94 4.48 3.35 4.41 3.59 0.205 295 6,770 135 08390100 18.82 6.00 4.48 3.35 4.43 3.62 0.217 716 6,760 135 08390500 17.70 5.53 4.50 3.39 4.46 3.63 0.197 945 6,580 135 08393200 12.52 3.58 4.87 3.87 4.76 3.83 0.064 31.5 4,500 90 08394300 12.86 3.71 5.00 3.91 4.82 3.88 0.067 5.05 4,500 90 08394500 15.04 4.40 4.77 3.73 4.80 3.81 0.117 945 5,240 0 08397400 25.93 10.13 4.72 3.52 4.80 3.84 0.278 3.35 8,240 0 08397600 22.11 7.56 4.66 3.54 4.77 3.75 0.229 575 7,570 135 08398500 19.14 6.18 4.83 3.71 4.87 3.81 0.169 1,050 6,630 0 08400000 14.37 4.12 5.06 3.97 5.16 4.03 0.088 348 4,900 0

08401200 15.09 4.10 5.05 3.96 5.55 4.33 0.079 217 4,170 0

08401800 16.37 4.23 5.05 3.93 5.67 4.49 0.093 250 4,680 0

08401900 16.15 4.20 5.05 3.94 5.69 4.49 0.095 292 4,470 0

08405050 16.21 4.20 5.07 3.96 5.88 4.63 0.033 0.14 4,220 135

08405100 15.37 4.07 5.00 4.02 6.08 4.72 0.125 14.4 3,970 0
Appendix 2 83

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

08405500 16.16 4.27 5.00 4.00 5.80 4.74 0.167 374 4,080 135

08408500 14.48 3.98 4.93 4.06 5.61 4.78 0.081 784 4,080 0

08477500 19.00 7.45 3.88 3.15 4.12 3.08 0.280 472 6,730 135

08477580 18.30 7.41 4.19 3.27 3.99 3.05 0.158 21.4 6,420 135

08477600 18.07 7.26 4.19 3.26 3.99 3.04 0.156 26.6 6,390 135

08478000 20.94 9.05 4.06 3.20 4.22 3.11 0.156 12.1 6,640 135

08478600 11.21 4.09 3.66 3.03 3.47 2.85 0.114 0.21 4,510 225

08478800 10.55 3.92 3.77 3.18 3.52 2.98 0.116 0.20 4,310 45

08479300 17.78 7.29 4.27 3.51 4.11 3.68 0.141 4.46 5,460 0

08480150 15.87 5.82 4.30 3.29 3.99 3.33 0.210 35.1 6,740 270

08480650 14.86 5.35 3.81 3.11 3.65 3.16 0.177 9.80 6,140 135

08480700 23.92 8.79 4.42 3.64 4.76 3.92 0.536 6.81 8,820 315

08481000 16.63 6.06 4.02 3.30 3.96 3.38 0.248 87.5 6,160 270

08481100 12.53 4.70 3.72 3.00 3.35 2.97 0.076 10.1 4,890 225

08482000 22.25 8.56 3.95 3.07 4.21 3.65 0.273 149 7,600 270

08489000 16.06 6.74 4.03 2.92 4.06 3.01 0.035 4.08 7,000 135

09163700 9.32 5.53 2.42 1.78 2.34 2.06 0.124 90.7 4,820 180

09177500 24.27 15.00 3.12 2.03 4.00 2.79 0.155 15.3 8,840 45

09181000 12.97 7.56 2.79 1.89 2.80 2.38 0.361 20.2 5,640 45

09182600 9.36 5.21 2.45 1.77 2.38 2.13 0.054 1.43 5,050 135

09183000 9.52 5.58 2.42 1.76 2.70 2.39 0.122 161 4,770 270

09183500 27.26 17.23 3.21 2.10 3.97 3.03 0.340 26.4 8,770 225

09184000 20.11 12.19 2.94 1.97 3.47 2.83 0.271 73.3 7,060 270

09185200 15.77 9.15 2.88 1.92 3.08 2.64 0.217 17.2 6,270 315

09185500 13.67 7.79 2.95 2.00 3.15 2.26 0.087 366 6,730 270
84 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 09187000 18.70 11.48 3.22 2.19 3.68 2.47 0.303 113 7,380 90 09314280 9.60 4.88 2.59 1.78 2.33 1.74 0.061 206 5,750 90 09314500 14.07 8.27 2.84 1.97 2.61 1.97 0.203 1,730 6,500 90 09315200 8.07 4.36 2.58 1.76 2.48 1.88 0.174 4.92 4,830 270 09315900 6.80 3.58 2.40 1.76 2.37 1.78 0.055 3.04 4,320 45 09316000 9.08 5.05 2.54 1.80 2.61 1.99 0.215 78.1 5,030 225 09317997 25.78 17.40 3.62 2.34 3.04 2.44 0.381 177 9,170 90 09326500 24.07 15.87 3.62 2.33 3.34 2.26 0.251 136 8,940 90 09327550 18.88 11.94 3.24 2.14 2.98 2.08 0.209 218 8,030 90 09327600 8.48 4.24 2.42 1.75 2.24 1.68 0.079 0.62 6,180 315 09328300 8.98 4.40 2.64 1.83 2.40 1.87 0.139 18.40 6,400 0 09328600 9.55 4.61 2.71 1.87 2.50 1.95 0.113 6.95 6,940 90 09328700 7.63 3.79 2.53 1.80 2.36 1.86 0.090 44.2 5,200 135 09329900 19.13 12.44 3.82 2.47 3.35 2.43 0.118 107 9,270 0 09330120 10.63 5.45 3.06 2.07 2.83 1.94 0.234 54.0 6,980 180 09330200 12.84 7.38 3.40 2.29 3.05 2.12 0.233 78.5 7,400 90 09330300 6.26 3.13 2.39 1.76 2.26 1.75 0.073 22.5 4,790 225 09330400 13.42 7.90 3.18 2.12 2.83 2.07 0.174 1,900 7,280 90 09330500 24.44 15.69 3.63 2.31 3.27 2.32 0.256 108 8,750 180 09331500 21.14 13.30 3.70 2.33 2.90 2.33 0.220 45.1 8,720 90

09332100 16.25 9.67 3.09 2.04 2.85 2.03 0.221 414 7,900 90

09332500 15.91 9.43 3.06 2.04 2.83 2.02 0.218 430 7,780 90

09336400 14.84 8.81 3.78 2.64 3.38 2.36 0.219 53.9 7520 90

09337000 22.17 14.88 4.18 2.78 3.83 2.67 0.198 66.7 9,730 270

09337500 17.44 11.07 3.93 2.67 3.57 2.46 0.230 315 7,800 90
Appendix 2 85

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

09338000 24.33 17.11 4.35 2.97 3.93 2.79 0.103 20.4 10,960 225

09338500 19.37 12.74 4.11 2.65 3.75 2.58 0.132 1.70 9,500 180

09338900 13.67 8.10 3.86 2.56 3.43 2.23 0.213 65.4 7,360 180

09339200 11.32 6.33 3.36 2.39 3.22 2.16 0.270 144 6,460 90

09350800 17.69 9.35 2.93 2.34 3.25 2.42 0.152 58.8 7,360 270

09356520 12.35 5.61 2.82 2.21 2.85 2.31 0.096 9.06 7,270 315

09357200 10.35 5.05 2.70 2.16 2.79 2.06 0.023 0.06 6,650 315

09357230 10.20 5.65 2.69 2.11 2.65 2.03 0.049 0.29 5,980 90

09367400 9.27 5.47 2.68 2.16 2.54 1.99 0.102 1.13 5,570 45

09367530 8.78 5.24 2.70 2.13 2.47 1.96 0.072 2.68 5,500 135

09367550 8.83 5.28 2.68 2.11 2.48 1.94 0.057 4.72 5,490 180

09367561 10.80 6.44 2.76 2.18 2.69 2.00 0.111 134 5,640 180

09367680 9.59 4.15 2.73 2.16 2.64 2.18 0.071 61.0 6,700 0

09367840 12.65 6.05 3.26 2.47 3.15 2.36 0.211 1.99 7,160 90

09367860 12.84 6.14 3.17 2.42 3.15 2.36 0.192 9.78 7,240 225

09367880 12.53 6.11 3.16 2.40 3.09 2.34 0.179 26.5 6,970 90

09367900 12.25 6.07 3.05 2.30 3.00 2.32 0.151 7.13 6,690 90

09367930 9.26 4.57 2.64 2.11 2.69 2.06 0.049 45.0 6,200 180

09367950 9.79 4.76 2.61 2.09 2.67 2.17 0.068 4,350 6,290 009367980 8.14 4.57 2.37 2.00 2.47 1.94 0.032 21.3 5,230 90

09368000 15.69 8.78 3.03 2.32 2.82 2.19 0.146 12,700 6,690 009368020 10.40 6.14 2.72 2.19 2.56 1.94 0.057 2.02 5,330 225

09378170 32.31 21.74 3.44 2.40 4.73 2.71 0.263 8.25 8,420 90

09378480 18.27 11.28 3.30 2.28 4.08 2.44 0.121 142 7,030 90

09378630 25.39 16.62 3.40 2.40 4.74 2.72 0.335 3.88 8,380 180
86 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 09378650 23.87 15.51 3.40 2.38 4.38 2.61 0.239 37.1 7,680 90 09378950 13.26 7.82 3.17 2.18 3.10 2.20 0.255 10.3 5,810 90 09379000 12.39 7.43 3.11 2.18 2.97 2.17 0.201 276 5,880 90 09379060 9.61 5.36 2.95 2.26 2.73 2.08 0.032 1.36 5,830 315 09379300 9.45 5.59 3.13 2.17 2.64 2.04 0.183 65.2 5,190 225 09379800 7.23 4.88 3.05 2.28 2.71 1.98 0.151 89.6 4,840 0 09379820 8.76 4.81 2.89 2.19 2.75 2.00 0.079 4.81 5,100 0 09381800 11.77 6.75 3.39 2.55 3.01 2.16 0.234 642 6,260 90 09383500 23.32 11.38 4.39 3.20 3.99 3.31 0.203 78.2 8,500 315 09383600 28.93 15.59 5.26 3.72 4.59 3.80 0.085 17.0 9,160 90 09385800 12.26 5.32 3.17 2.39 3.07 2.54 0.099 0.35 6,360 0 09386100 16.97 7.66 3.09 2.28 3.43 2.75 0.151 138 8,010 315 09386200 14.31 6.27 2.94 2.25 3.11 2.63 0.083 1,820 7,300 0 09386900 17.74 9.88 2.93 2.25 3.71 2.79 0.086 71.2 7,960 225 09386950 15.11 7.67 2.83 2.20 3.19 2.57 0.087 831 7,280 0 09387050 14.37 7.01 2.82 2.23 3.16 2.59 0.073 18.5 7,440 315 09390500 27.71 16.04 5.12 3.69 4.88 3.71 0.058 67.9 7,240 270 09395100 9.38 4.38 2.87 2.20 3.12 2.49 0.030 1.16 5,450 315 09395200 19.81 10.47 5.50 3.81 4.42 3.26 0.064 15.8 6,670 90 09395500 13.29 6.48 2.87 2.23 3.08 2.52 0.111 548 7,230 0

09395600 12.26 6.08 2.70 2.15 3.00 2.38 0.045 0.28 6,760 225

09395900 13.60 6.67 3.12 2.35 3.26 2.39 0.119 491 7,370 135

09396100 13.06 6.48 2.95 2.27 3.18 2.47 0.098 2,150 6,990 13509396400 9.56 4.66 2.85 2.09 3.01 2.39 0.065 0.75 5,720 135

09397100 10.70 5.50 2.97 2.28 3.10 2.38 0.047 806 5,980 180
Appendix 2 87

Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued[NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988]

Station 

number

Average 

basin mean 

annual 

precipitation 

(inches),

1961–90

Average basin 

mean annual 

winter 

precipitation 

(inches), 

1961–90

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA2 

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA2

(inches)

Average basin 

maximum 24-hour 

precipitation for 

100-year recurrence 

interval—NOAA14

(inches)

Average basin 

maximum 6-hour 

precipitation for 

100-year recurrence 

interval—NOAA14 

(inches)

Average 

basin slope 

(percent 

[feet/foot*100])

Drainage 

area 

(square 

miles)

Average 

basin 

elevation 

(feet 

above 

NAVD 88)

Average 

basin 

aspect 

(azimuth 

degree)

09397500 23.91 14.42 5.36 3.83 5.05 3.62 0.113 270 7,110 90

09397800 23.15 13.39 5.53 3.85 4.82 3.53 0.080 27.5 6,950 90

09398000 18.54 10.16 4.57 3.34 4.18 3.12 0.069 983 6,430 0

09398500 26.91 16.86 5.21 3.65 5.73 3.83 0.153 316 7,160 90

09400200 11.62 6.34 3.09 2.48 3.13 2.39 0.086 0.16 6,810 225

09400290 10.46 5.80 3.04 2.47 3.09 2.32 0.068 19.8 6,340 90

09400300 10.15 5.56 3.05 2.47 3.07 2.28 0.069 68.0 6,140 135

09400530 9.28 4.39 3.04 2.24 2.74 2.22 0.018 6.25 5,420 45

09400560 9.35 5.16 3.00 2.26 2.87 2.20 0.155 1.76 5,940 90

09400565 10.79 6.05 3.08 2.48 3.09 2.31 0.124 6.33 6,940 135

09400580 9.67 5.04 2.91 2.19 2.97 2.28 0.073 5.16 5,780 270

09400650 24.06 15.32 4.74 3.39 4.74 3.08 0.088 7.44 7,160 90

09401220 13.70 7.48 3.28 2.50 3.39 2.57 0.074 558 6,460 90

09401245 11.78 6.90 2.87 2.27 3.09 2.30 0.125 0.80 6,650 270

09401260 10.00 5.91 2.88 2.25 2.94 2.20 0.096 1,590 6,160 270

09403780 14.48 9.24 3.42 2.68 3.36 2.35 0.129 1,080 5,870 315

09403800 11.90 7.37 3.68 2.84 3.01 2.24 0.224 2.48 5,050 225

09404050 18.35 10.85 3.50 2.75 4.13 2.97 0.032 2.51 6,120 0

09404310 11.49 6.16 3.17 2.78 3.64 3.21 0.083 0.11 5,320 180

09404500 14.49 9.29 3.75 2.80 3.49 2.25 0.130 8.26 5,960 90

09404900 15.65 10.13 3.65 2.85 3.52 2.28 0.245 339 6,180 90

09406700 22.05 15.13 3.85 2.97 4.20 2.90 0.445 11.0 6,840 90

09406800 20.34 13.89 3.76 2.93 4.05 2.81 0.415 13.7 6,590 90

09407200 16.80 11.31 3.68 2.81 3.72 2.65 0.300 200 5,920 135

09408000 16.97 11.66 3.54 2.87 3.99 2.77 0.371 15.3 6,130 180
88 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 2. Basin and climatic characteristics determined using Geographical Information System.—Continued [NOAA2, NOAA14, National Oceanic and Atmospheric Administration Atlases 2 (Miller and others, 1973) and 14 (Bonnin and others, 2004), respectively; NAVD 88, North American Vertical Datum of 1988] Station number Average basin mean annual precipitation (inches), 1961–90 Average basin mean annual winter precipitation (inches), 1961–90 Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA2 (inches) Average basin maximum 24-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin maximum 6-hour precipitation for 100-year recurrence interval—NOAA14 (inches) Average basin slope (percent [feet/foot*100]) Drainage area (square miles) Average basin elevation (feet above NAVD 88) Average basin aspect (azimuth degree) 09408150 14.73 9.87 3.57 2.77 3.47 2.46 0.283 700 5,250 135 09408400 28.72 20.06 4.14 3.01 4.48 3.16 0.413 18.3 8,970 315 09409100 22.65 15.80 4.04 2.93 4.12 3.02 0.278 111 7,230 270 09409500 22.64 16.87 3.58 2.85 4.34 2.91 0.295 33.5 6,010 180 09430500 20.08 9.01 3.61 2.91 4.09 3.26 0.231 1,850 7,520 180 09431000 19.67 8.86 3.65 2.93 4.05 3.18 0.234 2,380 7,360 180 09431500 19.00 8.50 3.69 2.95 3.98 3.14 0.224 2,820 7,140 180 09442650 25.83 13.31 3.87 2.92 4.24 3.34 0.177 9.37 8,760 225 09442660 24.53 12.34 4.05 3.01 4.16 3.32 0.153 31.0 8,580 180 09443000 20.23 9.78 3.50 2.76 3.66 2.85 0.220 1,520 7,370 180 09489200 28.27 15.83 5.42 3.80 4.59 3.73 0.140 16.4 8,450 135 09489700 28.08 16.01 5.65 3.94 4.71 3.70 0.258 114 8,070 135 09490800 31.19 17.50 6.12 4.33 4.87 3.88 0.175 39.3 9,310 0 09491000 31.25 17.67 6.10 4.27 5.14 3.90 0.191 69.1 9,180 270 09502800 15.10 7.96 4.64 3.52 4.22 2.98 0.120 253 5,010 0 09503800 24.92 15.92 4.93 3.53 4.81 3.13 0.073 135 7,390 225 09505220 29.49 20.38 6.47 4.37 5.49 3.83 0.120 1.85 7,220 180 09536350 24.87 10.76 4.90 4.09 4.64 3.99 0.317 0.66 6,290 270
Appendix 3

Appendix 3—Miscellaneous Sites, Maximum Peak Discharge, 

Drainage Area, and Site Elevations
Blank Page
Appendix 3 91

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

1 362958 1030731 Apache Creek at State Highway 18 near Clayton, New Mexico 1952 2,500 50.8 4,780 1

2 354906 1034621 Arroyo del Alamo near Mosquero, New Mexico 05/16/54 3,440 27.4 4,380 1

3 350110 1040426 Arroyo Laguana tributary near Montoya, New Mexico 07/05/60 2,660 3.40 4,460 1

4 350216 1033407 Barranca Creek near Norton, New Mexico 08/23/59 3,870 147 4,040 1

5 350714 1035416 Blanco Creek tributary at Palomas, New Mexico 07/05/60 1,540 2.90 4,330 1

6 365451 1030515 Bontz Arroyo near Guy, New Mexico 07/06/58 2,410 4.90 4,450 1

7 364546 1042933 Canadian River tributary near Hebron, New Mexico 06/17/65 2,130 2.01 6,300 1

8 364818 1030100 Carrizozo Creek tributary near Moses, New Mexico 07/06/58 307 0.15 4,730 1

9 352646 1034249 Carros Creek near Gallegos, New Mexico 07/08/60 2,590 9.40 4,050 1

10 361550 1031235 Carrizo Creek near Clayton, New Mexico 05/28/57 29,500 305 4,780 1

11 365210 1042246 Chicorica Creek near Raton, New Mexico 06/17/65 12,800 78.8 6,460 1

12 365100 1042125 Chicorica Creek tributary near Raton, New Mexico 06/17/65 1,810 1.33 6,470 1

13 362122 1032812 Carrizo Creek above State Road 56 near Clayton, New Mexico 06/17/65 9,270 305 5,245 1

14 353616 1045352 Conchas River tributary near Trujillo, New Mexico 07/05/67 4,530 3.43 6,480 1

15 353622 1045208 Conchas River near Trujillo, New Mexico 07/05/67 9,810 18.6 6,430 1

16 364216 1043536 Crow Creek below Waldron Canyon near Koehler, New Mexico 06/17/65 30,400 59.8 6,260 1

17 363755 1043225 Crow Creek near Maxwell, New Mexico 06/17/65 13,100 78.4 6,030 1

18 351813 1041843 Cuervo Creek near Conchas Dam, New Mexico 06/18/69 12,800 135 4,280 1

19 360020 1033331 Del Muerto Creek near Bueyeros, New Mexico 07/16/72 34,600 29.0 4,690 1

20 365540 1042130 East Fork Chicorica Creek at Yankee, New Mexico 06/17/65 13,500 22.7 6,780 1

21 351256 1031216 Frost Creek near Porter, New Mexico 07/16/58 2,910 10.0 3,900 1

22 354430 1040722 La Cinta Creek near Roy, New Mexico 08/17/77 13,300 116.5 4,700 1

23 361249 1043900 Ocate Creek at Colmar, New Mexico 07/04/51 25,000 434 5,900 1

24 354113 1030746 Minneosa Creek near Nara Visa, New Mexico 07/23/54 20,400 118 4,300 1

25 345838 1034502 Paris Creek near Quay, New Mexico 07/17/56 3,410 9.20 4,220 1

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations. [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]
92 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 26 345838 1034502 Paris Creek near Quay, New Mexico 07/16/58 3,290 9.20 4,220 1 27 362653 1031144 Perico Creek tributary at Clayton, New Mexico 09/09/60 1,600 4.90 4,990 1 28 350527 1033702 Plaza Larga Creek near Tucumcari, New Mexico 07/09/60 12,200 348 4,000 1 29 345005 1034524 Rincon Canyon Arroyo at Ragland, New Mexico 07/16/58 1,150 0.45 4,580 1 30 345005 1034524 Rincon Canyon Arroyo near Ragland, New Mexico 07/16/58 4,730 5.00 4,500 1 31 360008 1033735 Salado Creek near Bueyeros, New Mexico 08/08/60 799 18.0 4,610 1 32 363445 1031659 Seneca Creek above State Highway 370 near Clayton, New Mexico 05/18/55 1,600 102 5,080 1 33 363426 1030746 Seneca Creek at State Road 18 near Clayton, New Mexico 1941 21,600 110 4,820 1 34 363613 1032222 Seneca Creek near Clayton, New Mexico 06/17/65 9,580 112 5,300 1 35 365616 1030911 Sloan Creek near Guy, New Mexico 07/06/58 4,280 37.0 4,500 1 36 365536 1030731 Smiley Arroyo near Guy, New Mexico 07/06/58 1,930 7.55 4,470 1 37 350039 1034426 Spikes Creek near Quay, New Mexico 07/16/58 2,400 5.80 4,160 1 38 364213 1043300 Springer Arroyo near Colfax, New Mexico 06/17/65 2,280 3.00 6,260 1 39 354846 1034537 Tequesquite Creek near Mosquero, New Mexico 07/11/51 16,000 468 4,340 1 40 354846 1034537 Tequesquite Creek near Mosquero, New Mexico 1937 36,000 468 4,340 1 41 365404 1032645 Travesser Creek near Guy, New Mexico 06/17/65 12,500 74.7 5,080 1 42 351446 1034832 Trinchera Creek near Tucumcari, New Mexico 05/16/54 2,740 2.15 4,150 1 43 353922 1034442 Ute Creek tributary near Gallegos, New Mexico 08/09/60 668 0.60 4,240 1 44 363634 1044510 Vermejo River below Dawson at Vermejo diversion weir, New Mexico 08/04/57 21,000 380 6,180 1 45 352740 1034545 Wynn Creek near Gallegos, New Mexico 07/08/60 3,060 3.00 4,170 1

46 354800 1044745 Mora River 1.5 miles above gage near Shoemaker, New Mexico 07/31/51 8,200 6,040 6,170 1

47 350953 1035405 Pajarito Creek near Hanley, New Mexico 06/01/37 31,000 310 4,110 1

48 370004 1042132 Chicorica Creek above Lake Maloya near Morley, Colorado 05/18/55 2,450 4.54 1

49 364332 1075828 Bloomfield Canyon at Bloomfield, New Mexico 08/24/96 2,830 10.0 5,540 2

50 361438 1073554 Blanco Wash tributary No. 1 near Nageezi, New Mexico 08/12/57 196 0.20 7,060 2
Appendix 3 93

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

51 361530 1073736 Blanco Wash tributary No. 2 near Nageezi, New Mexico None 519 0.81 6,920 2

52 360418 1084105 Chaco River tributary at Naschitti, New Mexico 08/06/59 2,640 8.80 5,880 2

53 354605 1084655 Figuredo Wash near Mexican Springs, New Mexico 08/19/58 3,510 72.0 6,260 2

54 364540 1082700 Shumway Arroyo near Waterflow, New Mexico 1955 4,620 138 5,060 2

55 364540 1082700 Shumway Arroyo near Waterflow, New Mexico 07/15/57 2,050 138 5,060 2

56 364459 1082251 Stevens Arroyo at Fruitland, New Mexico 1955 1,240 8.75 5,140 2

57 364353 1082119 Dain Arroyo near Fruitland, New Mexico 1955 4,620 138 5,210 2

58 364531 1082525 Waughan Arroyo near Waterflow, New Mexico 1955 300 5.95 5,030 2

59 332130 1051445 Alamo Canyon near Tinnie, New Mexico 06/17/65 38,400 54.6 5,180 3

60 325356 1055534 Ballamah Ditch at Alamogordo, New Mexico 08/17/59 1,130 0.80 4,550 3

61 325640 1051952 Burnt Canyon at Elk, New Mexico 08/30/57 5,450 16.9 5,810 3

62 332220 1051450 Chavez Canyon near Tinnie, New Mexico 06/17/65 5,710 46.4 5,180 3

63 332640 1052900 Devils Canyon near Glencoe, New Mexico 06/17/65 1,740 0.80 6,140 3

64 332502 1052622 Devils Canyon at Glencoe, New Mexico 06/17/65 16,200 60.0 5,710 3

65 332555 1052920 Eagle Creek near Glencoe, New Mexico 06/17/54 2,700 26.6 5,980 3

66 325806 1052033 Elk Canyon near Elk, New Mexico 08/30/57 3,470 160 5,900 3

67 325620 1051636 Graveyard Canyon near Elk, New Mexico 08/11/60 1,150 2.00 5,700 3

68 325749 1051925 Little Felix Canyon near Elk, New Mexico 07/05/58 6,500 19.5 5,820 3

69 325749 1051925 Little Felix Canyon near Elk, New Mexico 01/07/58 8,080 19.5 5,820 3

70 330131 1051333 Lincoln Canyon near Elk, New Mexico 07/31/62 11,500 216 5,530 3

71 325913 1052020 Panther Draw near Elk, New Mexico 07/05/58 4,630 7.50 5,980 3

72 323250 1051000 Pinon Creek near Pinon, New Mexico 08/22/66 7,970 203 4,760 3

73 332710 1051920 Rio Bonito tributary near Hondo, New Mexico 06/17/65 850 1.20 5,500 3

74 325632 1051714 Rio Penasco tributary near Elk, New Mexico 08/11/60 336 0.20 5,700 3

75 332330 1052900 Rio Ruidoso at Buckhorn Courts near Glencoe, New Mexico 06/17/65 7,920 169 5,870 3
94 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 76 332415 1052855 Silva Canyon near Glencoe, New Mexico 06/17/65 2,940 3.00 5,940 3 77 344037 1042237 Alamogordo Creek near Guadalupe, New Mexico 06/03/37 24,800 273 4,290 4 78 340407 1043338 Arroyo de La Mora near Dunlap, New Mexico 07/07/60 6,650 430 4,100 4 79 343150 1041630 Arroyo del Anil near Fort Sumner, New Mexico 06/03/37 12,000 135 4,080 4 80 333850 1043309 Arroyo del Macho near Roswell, New Mexico 05/28/37 49,500 2290 3,660 4 81 344530 1042858 Arroyo San Juan de Dios tributary 1 near Puerto de Luna, New Mexico 06/16/93 1,700 1.20 4,430 4 82 345012 1043309 Arroyo San Juan de Dios tributary 2 near Puerto de Luna, New Mexico None 1,050 1.00 4,700 4 83 332601 1042928 Berrendo Creek at Roswell, New Mexico 06/01/38 37,700 453 3,530 4 84 332646 1043109 Berrendo Creek below US 285 at Roswell, New Mexico 05/17/54 23,400 438 3,570 4 85 332646 1043109 Berrendo Creek below US 285 at Roswell, New Mexico 10/06/54 19,400 438 3,570 4 86 320756 1042423 Black River at U.S. Highway 180 near White City, New Mexico 08/23/66 41,500 217 3,540 4 87 345852 1050457 Canon de Baca tributary near Pintada, New Mexico 07/19/71 3,190 2.17 5,500 4 88 321550 1041630 Cass Draw near Carlsbad, New Mexico 05/30/65 32,500 9.30 3,300 4 89 321127 1042042 Chinaberry Draw near White City, New Mexico 07/06/60 957 1.83 3,460 4 90 322338 1041418 Dark Canyon at Carlsbad, New Mexico 08/18/57 20,700 449 3,120 4 91 322338 1041418 Dark Canyon at Carlsbad, New Mexico 08/23/66 66,000 449 3,120 4 92 324853 1043125 Eagle Creek Draw near Artesia, New Mexico 10/06/54 12,500 174 3,620 4 93 325447 1045342 Eagle Creek near Hope, New Mexico 08/23/66 10,270 95.0 4,410 4 94 324959 1042606 Eagle Draw at Artesia, New Mexico 06/13/64 7,020 185 3,440 4 95 324920 1042859 Eagle Draw near Artesia, New Mexico 06/13/64 7,170 174 3,540 4

96 325009 1042757 Eagle Draw tributary near Artesia, New Mexico 06/13/64 10,700 4.30 3,500 4

97 321445 1041805 Elbow Canyon near Carlsbad, New Mexico 05/30/65 6,410 2.40 3,400 4

98 345948 1051857 Encinosa Draw near Milagro, New Mexico None 6,800 137 5,990 4

99 351558 1045456 Gallinas River near Chaperito, New Mexico 1937 21,400 566 5,080 4

100 325056 1041718 Hart Canyon near Artesia, New Mexico 06/13/64 10,900 25.0 3,340 4
Appendix 3 95

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

101 321304 1041848 Jurnigan Draw near White City, New Mexico 08/23/66 6,710 6.13 3,440 4

102 341201 1042436 Little Conejo Creek near Dunlap, New Mexico 07/06/60 2,190 13.0 4,020 4

103 341201 1042436 Little Conejo Creek near Dunlap, New Mexico None 4,680 13.0 4,020 4

104 322153 1041740 Little McKittrick Canyon above Sheep Draw near Carlsbad, New Mexico None 32,200 57.2 3,260 4

105 322309 1042107 Little McKittrick Canyon near Carlsbad, New Mexico 08/18/57 20,900 46.2 3,390 4

106 320028 1043204 McKittrick Canyon Draw near New Mexico-Texas State Line 08/22/66 10,900 71.0 3,920 4

107 323851 1042439 North Sevens Rivers near Lakewood, New Mexico 10/07/54 20,800 312 3,340 4

108 323851 1042439 North Sevens Rivers near Lakewood, New Mexico 08/22/58 3,040 312 3,340 4

109 323837 1042543 North Sevens Rivers No. 2 near Lakewood, New Mexico 08/23/66 37,400 312 3,370 4

110 322451 1043235 Old Ranch Canyon near Carlsbad, New Mexico 07/06/60 1,990 2.05 3,930 4

111 332020 1050705 Patterson Canyon near Picacho, New Mexico 06/28/65 4,000 3.39 4,900 4

112 351805 1052330 Pecos River tributary at Sena, New Mexico 05/12/65 189 0.45 5,900 4

113 344553 1043918 Puerto Creek near Puerto de Luna, New Mexico 05/29/95 3,800 7.20 4,580 4

114 320702 1042724 Rattlesnake Canyon near White City, New Mexico 08/22/66 11,900 18.8 3,580 4

115 330605 1042557 Rio Felix near Hagerman, New Mexico 10/07/54 81,800 920 3,520 4

116 331956 1050334 Rio Hondo at Riverside, New Mexico 06/01/37 24,900 879 4,740 4

117 332327 1043056 Rio Hondo below railroad bridge at Roswell, New Mexico 05/17/54 934 2,900 3,560 4

118 331535 1043932 Rocky Arroyo at Lambert Well near Roswell, New Mexico 10/07/54 6,620 68.3 3,840 4

119 331535 1043932 Rocky Arroyo at Lambert Well near Roswell, New Mexico 1941 9,400 68.3 3,840 4

120 342758 1050434 Salado Creek tributary near Joffre, New Mexico 07/05/60 871 0.60 5,740 4

121 331959 1050245 Silver Canyon at Riverside, New Mexico 06/28/65 4,550 3.96 4,760 4

122 320454 1042933 Slaughter Canyon near White City, New Mexico 08/22/66 8,610 31.9 3,720 4

123 332338 1043412 Spring River near Roswell, New Mexico 05/17/54 4,270 8.68 3,600 4

124 323331 1035902 State Highway 31 Arroyo near Carlsbad, New Mexico 09/26/58 143 0.15 3,260 4

125 325932 1042622 Walnut Creek near Lake Arthur, New Mexico 07/29/65 10,000 72.0 3,420 4
96 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 126 321118 1042349 Walnut Canyon near White City, New Mexico 08/31/63 10,700 12.1 3,540 4 127 321113 1042335 Walnut Canyon Arroyo near White City, New Mexico 06/23/86 2,980 11.7 3,560 4 128 365350 1043442 Canadian River near Raton, New Mexico 04/30/99 7,000 94.0 6,820 5 129 354842 1051818 Canon del Rocio near Tierra Monte, New Mexico 08/07/57 445 4.20 7,140 5 130 363430 1045625 Chase Canyon near Cimarron, New Mexico 06/17/65 10,800 23.0 6,640 5 131 365901 1042225 Chicorica Creek below Lake Maloya near Raton, New Mexico 05/18/55 2,230 20.8 7,480 5 132 365549 1042223 Chicorica Creek near Yankee, New Mexico 06/17/65 2,230 36.3 6,800 5 133 362958 1045539 Cimarron Creek tributary at Cimarron, New Mexico 06/05/58 1,870 1.44 6,460 5 134 363058 1045712 Cimarron Creek tributary near Cimarron, New Mexico 06/05/58 337 0.15 6,590 5 135 364645 1043740 Crow Creek near Koehler, New Mexico 06/17/65 10,600 29.0 6,630 5 136 365455 1042641 Raton Creek near Raton, New Mexico 08/20/51 307 12.9 6,730 5 137 354610 1052136 Rito Colorado at San Ignacio, New Mexico 08/04/57 1,660 5.00 7295 5 138 354429 1051539 Sanguijuela Arroyo near Sapello, New Mexico 08/04/57 7,050 6.10 6990 5 139 354627 1052008 Sapello River tributary near San Ignacio, New Mexico 08/04/57 544 2.14 7190 5 140 363125 1045855 Turkey Creek Canyon near Cimarron, New Mexico 06/17/65 6,660 5.25 6650 5 141 355243 1060020 Arroyo Cuyamungue near Pojoaque, New Mexico 08/22/61 4,770 3.86 5930 5 142 361955 1054055 Arroyo del Alamo near Ranchos de Taos, New Mexico 08/01/59 173 4.11 7020 5 143 361945 1054115 Arroyo del Alamo tributary near Ranchos de Taos, New Mexico 08/01/59 59 2.64 7040 5 144 360348 1060854 Arroyo de la Presa near Hernandez, New Mexico 08/22/61 12,300 11.0 5895 5 145 355306 1060309 Arroyo Ramon Martinez at El Rancho, New Mexico 08/28/52 1,780 0.80 5755 5

146 355324 1060456 Arroyo del Rancho at El Rancho, New Mexico 08/22/52 34,500 6.77 5660 5

147 355744 1060148 Arroyo Seco near Sombrillo, New Mexico 08/05/69 4,500 19.2 5720 5

148 354220 1052320 Beaver Creek at El Porvenir, New Mexico 08/04/57 619 25.0 7,360 5

149 354140 1055440 Canada Ancha at Santa Fe, New Mexico 08/24/57 800 1.66 7,360 5

150 362055 1060613 Canoncito de La Madera tributary near Ojo Caliente, New Mexico 06/14/59 606 0.87 6,850 5
Appendix 3 97

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

151 352616 1053044 Cow Creek near San Jose, New Mexico 06/01/63 1,420 130 6,200 5

152 352449 1052808 El Rito near San Jose, New Mexico 06/01/63 8,070 37.2 6,100 5

153 354170 1052125 Gallinas River at Gallinas, New Mexico 08/04/57 4,110 67.0 7,150 5

154 354403 1055446 Little Tesuque Creek near Tesuque, New Mexico 08/24/57 1,060 8.28 7,060 5

155 352401 1052830 Pecos River at San Jose, New Mexico 06/01/63 11,400 579 6,040 5

156 352438 1053013 Pecos River tributary near San Jose, New Mexico 06/01/63 208 2.00 6,260 5

157 355347 1060047 Pojaoque Creek at Pojaoque, New Mexico 07/31/55 11,000 86.9 5,850 5

158 361210 1061644 Rio Chama tributary near Abiquiu, New Mexico 05/26/64 2,670 5.35 6,020 5

159 360752 1054535 Rio de Las Trampas at Las Trampas, New Mexico 08/15/69 2,400 24.1 7,400 5

160 360631 1060911 Rio del Oso at Chili, New Mexico 09/01/94 15,400 41.0 5,750 5

161 360608 1060945 Rio del Oso near Hernandez, New Mexico 08/22/61 11,600 41.2 5,800 5

162 360844 1055854 Rio de Truchas near Velarde, New Mexico None 6,300 33.1 5,830 5

163 360740 1060019 Rio Grande tributary near Lyden, New Mexico 07/26/59 1,100 0.66 5,800 5

164 361334 1055141 Rio Grande tributary No. 1 at Rinconada, New Mexico 07/26/59 388 0.53 5,970 5

165 361314 1055158 Rio Grande tributary No. 2 at Rinconada, New Mexico 07/26/59 1,390 0.48 5,940 5

166 361307 1055211 Rio Grande tributary No. 3 at Rinconada, New Mexico 08/06/59 159 0.03 5,900 5

167 361300 1055238 Rio Grande tributary No. 4 at Rinconada, New Mexico 08/06/59 283 0.13 5,900 5

168 354530 1064730 Rio Guadalupe tributary near Jemez Springs, New Mexico 07/31/56 410 6.74 6,740 5

169 354435 1055601 Rio Tesuque tributary near Tesuque, New Mexico 08/24/57 633 0.71 7,000 5

170 361619 1054703 Rito Cieneguilla at Pilar, New Mexico 07/28/52 4,600 7.00 6,060 5

171 352434 1051431 Tecolote Creek near Chapelle, New Mexico 1937 20,500 130 5,940 5

172 353805 1064140 Vallecito Creek near Jemez, New Mexico None 3,130 64.1 5,750 5

173 354510 1055535 Rio Tesuque at Tesuque near Santa Fe, New Mexico 09/07/36 660 22.0 6,830 5

174 354510 1055535 Rio Tesuque at Tesuque near Santa Fe, New Mexico 07/19/38 952 22.0 6,830 5

175 354510 1055535 Rio Tesuque at Tesuque near Santa Fe, New Mexico 08/24/57 1,490 22.0 6,830 5
98 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 176 342739 1063127 Abo Arroyo near Scholle, New Mexico 08/21/51 18,300 244 5,360 6 177 343137 1064542 Abo Arroyo at Veguita, New Mexico 07/30/56 9,350 257 4,780 6 178 343058 1064443 Abo Arroyo at Veguita, New Mexico 07/31/97 9,410 257 4,730 6 179 354149 1055606 Arroyo Barranca at Santa Fe, New Mexico 08/24/57 1,100 1.04 7,050 6 180 351030 1063615 Arroyo de Domingo Baca at Albuquerque, New Mexico 07/27/55 977 8.10 5,050 6 181 354145 1055604 Arroyo de la Piedra at Santa Fe, New Mexico 08/24/57 1,600 2.78 7,040 6 182 344140 1061810 Arroyo del Cuervo at State Highway 55 near Torreon, New Mexico 08/02/50 3,250 12.1 6,670 6 183 350554 1063326 Arroyo del Embudo above Palomas Drive at Albuquerque, New Mexico 08/11/61 3,590 27.5 5,230 6 184 350617 1063414 Arroyo del Embudo at Albuquerque, New Mexico 07/27/55 2,360 28.6 5,270 6 185 350553 1063325 Arroyo del Embudo between Pennsylvania and Hendola at Albuquerque, New Mexico 08/11/61 518 14.6 5,320 6 186 350639 1063708 Arroyo del Embudo above Princeton Street at Albuquerque, New Mexico 08/10/63 8,840 34.1 5,050 6 187 350639 1063719 Arroyo del Embudo below Princeton Street at Albuquerque, New Mexico 08/11/61 3,620 34.1 5,040 6 188 350553 1063325 Arroyo del Embudo between Pennsylvania and Hendola at Albuquerque, New Mexico 08/10/63 1,470 14.6 5,320 6 189 350523 1063300 Arroyo del Embudo tributary at Wyoming Boulevard at Albuquerque, New Mexico 08/11/61 572 7.70 5,350 6 190 353820 1055540 Arroyo de los Chamisos tributary at Santa Fe, New Mexico 07/26/71 695 0.75 7,000 6 191 350909 1063230 Arroyo del Pino near Albuquerque, New Mexico 07/27/55 1,150 6.00 5,520 6 192 350940 1063645 Arroyo del Pino overflow near Albuquerque, New Mexico 07/27/55 505 7.10 5,020 6 193 341147 1065531 Arroyo del Puertocito at Polvadera, New Mexico 08/01/56 333 0.40 4,680 6 194 345912 1070608 Arroyo de Miranda near Rio Puerco, New Mexico None 2,740 4.00 5,540 6 195 344512 1061657 Arroyo de Tajique at Tajique, New Mexico 07/14/52 1,110 19.8 6,640 6

196 340549 1071910 Arroyo Gato tributary near Magdalena, New Mexico None 2,500 8.10 6,280 6

197 340549 1071910 Arroyo Gatos tributary near Magdalena, New Mexico None 4,310 8.10 6,280 6

198 353720 1055505 Arroyo Hondo near Santa Fe, New Mexico 07/26/71 4,050 9.80 7,140 6

199 340514 1071854 Arroyo Landavasco at dam near Magdalena, New Mexico None 2,970 4.50 6,700 6

200 354120 1055715 Arroyo Mascaras at Santa Fe, New Mexico 08/24/57 3,040 6.27 6,890 6
Appendix 3 99

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

201 354120 1055715 Arroyo Mascaras at Santa Fe, New Mexico 07/25/68 2,490 6.27 6,890 6

202 354130 1055612 Arroyo Ranchito at Santa Fe, New Mexico 08/24/57 520 0.61 7,130 6

203 351700 1061240 Arroyo Tuerto near Golden, New Mexico 09/24/55 2,000 12.9 6,480 6

204 351615 1061245 Arroyo Val Verde at Golden, New Mexico 09/24/55 987 1.40 6,580 6

205 344528 1064713 Belen Highline Canal tributary near Los Chaves, New Mexico 06/14/61 2,130 0.86 4,920 6

206 351225 1071620 Bohart Creek near Moquino, New Mexico 08/21/58 4,840 32.0 6,230 6

207 340023 1065908 Box Canyon near Socorro, New Mexico 08/01/56 6,210 24.3 5,380 6

208 353920 1065320 Cachana Arroyo near San Ysidro, New Mexico 05/14/59 1,590 5.16 6,100 6

209 353935 1065325 Cachana Arroyo tributary near San Ysidro, New Mexico 05/14/59 552 0.23 6,140 6

210 350610 1063810 Campus Wash at Albuquerque, New Mexico 08/10/63 640 7.3 5,000 6

211 351320 1060920 Canada de las Narrias (lower) near San Pedro, New Mexico 09/24/55 4,830 5.71 6,820 6

212 351335 1061055 Canada de las Narrias (upper) near San Pedro, New Mexico 09/24/55 2,200 1.53 7,010 6

213 351750 1063200 Canon del Agua at Bernalillo, New Mexico 07/19/56 5,380 3.93 5,200 6

214 351135 1062956 Canon la Cuerva near Albuquerque, New Mexico 07/27/55 1,920 2.60 6,080 6

215 350246 1072640 Encinal Arroyo near New Laguna, New Mexico 08/10/55 8,320 20.4 5,910 6

216 344530 1060539 Estancia Valley tributary No.1 near Estancia, New Mexico 07/07/52 4,660 13.2 6,180 6

217 343158 1061158 Estancia Valley tributary No.2 near Mountainair, New Mexico 07/07/52 3,560 3.35 6,410 6

218 340125 1070225 Four Mile Canyon near Socorro, New Mexico 08/08/56 1,010 16.0 6,040 6

219 350755 1063755 Hahn Arroyo above Edith Avenue at Albuquerque, New Mexico 08/10/63 4,100 8.50 5,000 6

220 350756 1063746 Hahn Arroyo at Edith Avenue at Albuquerque, New Mexico 08/11/61 935 7.60 5,000 6

221 350737 1063350 Hahn Arroyo tributary at Albuquerque, New Mexico 08/10/63 1,420 0.50 5,320 6

222 352739 1064041 Jemez River tributary at Bridge 3049 near San Ysidro, New Mexico 07/23/51 14,000 3.29 5,370 6

223 352817 1064122 Jemez River tributary at Bridge 3050 near San Ysidro, New Mexico 07/23/51 4,150 5.00 5,360 6

224 351152 1071905 Meyer Draw near Moquino, New Mexico 08/21/58 2,310 21.7 6,180 6

225 352142 1080157 Mitchell Draw tributary at Prewitt, New Mexico 08/07/59 1,020 3.00 6,790 6
100 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 226 352216 1080428 Mitchell Draw tributary near Prewitt, New Mexico 08/07/59 928 1.00 6,880 6 227 352354 1081324 Mitchell Draw tributary at Thoreau, New Mexico 08/07/59 2,350 18.8 7,120 6 228 352515 1081058 Mitchell Draw tributary near Thoreau, New Mexico 08/07/59 1,930 3.30 7,150 6 229 352325 1080850 Mitchell Draw tributary near South Chaves near Thoreau, New Mexico 09/01/58 430 1.60 6,980 6 230 340552 1065403 Nogal Arroyo near Socorro, New Mexico None 1,800 60.4 4,640 6 231 340552 1065403 Nogal Arroyo near Socorro, New Mexico 8/00/1957 2,950 60.4 4,640 6 232 340552 1065403 Nogal Arroyo near Socorro, New Mexico 08/01/56 4,670 60.4 4,640 6 233 350627 1072011 Oak Canyon near Paguate, New Mexico 05/23/59 1,450 4.28 5,840 6 234 352448 1055200 Piedra Lumbre Canyon near Galisteo, New Mexico 08/06/91 688 5.36 6,240 6 235 350923 1063635 Rio Grande tributary near Albuquerque, New Mexico 07/27/55 1,620 14.7 5,060 6 236 350504 1063642 Campus Boulevard at Albuquerque, New Mexico 07/15/57 629 1.67 5,020 6 237 351040 1072133 Rio Moquino tributary at Moquino, New Mexico 08/21/58 475 76.4 6,110 6 238 351040 1072133 Rio Moquino tributary at Moquino, New Mexico None 2,170 76.4 6,110 6 239 351040 1072133 Rio Moquino tributary at Moquino, New Mexico None 2,970 76.4 6,110 6 240 355040 1065808 Rio Puerco at La Ventana, New Mexico 08/07/49 1,200 297 6,510 6 241 350657 1074912 Rio San Jose tributary near Grants, New Mexico None 3,390 16.0 6,410 6 242 350204 1072028 Rio San Jose tributary No. 1 near Laguna, New Mexico 07/26/59 761 0.81 5,700 6 243 350204 1072028 Rio San Jose tributary No. 2 near Laguna, New Mexico 07/26/59 917 0.62 5,700 6 244 354635 1065630 Rito Olguin tributary near La Ventana, New Mexico Aug-57 243 0.26 6,680 6 245 351606 1063404 Sandia Wash near Bernalillo, New Mexico 08/03/63 7,550 15.0 5,050 6 246 351335 1061023 San Lazarus Gulch near San Pedro, New Mexico 09/24/55 950 0.58 6,960 6

247 341334 1065518 San Lorenzo Arroyo near San Acacia, New Mexico 08/01/50 1,700 0.12 4,710 6

248 341334 1065518 San Lorenzo Arroyo near San Acacia, New Mexico 1929 11,000 0.12 4,710 6

249 341330 1065505 San Lorenzo Arroyo near Polvadera, New Mexico 09/19/60 11,700 27.9 4,710 6

250 352632 1060647 San Marcos Arroyo at Cerrillos, New Mexico 06/17/58 8,090 92.0 5,730 6
Appendix 3 101

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

251 352732 1060412 San Marcos Arroyo near Cerrillos, New Mexico 06/17/58 2,990 33.0 5,990 6

252 352802 1060411 San Marcos Arroyo tributary near Cerillos, New Mexico 06/17/58 209 0.10 6,060 6

253 352030 1074047 San Mateo Creek near San Mateo, New Mexico 07/19/56 4,820 23.4 7,050 6

254 352116 1073846 San Mateo Creek tributary near San Mateo, New Mexico 07/19/56 1,500 0.95 7,180 6

255 351315 1061740 San Pedro Creek tributary No. 1 near Golden, New Mexico 09/24/55 2,950 4.21 6,360 6

256 351310 1061700 San Pedro Creek tributary No. 1 (upper) near Golden, New Mexico 09/24/55 2,400 2.82 6,440 6

257 351255 1061705 San Pedro Creek tributary No. 1A near Golden, New Mexico 09/24/55 2,750 0.92 6,450 6

258 351330 1061530 San Pedro Creek tributary No. 2 near Golden, New Mexico 09/24/55 962 0.90 6,560 6

259 354106 1055626 Santa Fe River at Santa Fe, New Mexico 07/28/52 635 31.8 6,970 6

260 353740 1060528 Santa Fe River at Airport Road near Santa Fe, New Mexico 07/29/53 2,410 51.7 6,280 6

261 354103 1055602 Santa Fe River below Castillo Street Santa Fe, New Mexico 08/24/57 1,450 30.0 7,010 6

262 354104 1055555 Santa Fe River above Castillo Street Santa Fe, New Mexico 07/25/68 3,420 33.0 7,020 6

263 354111 1055745 Santa Fe River below Arroyo Mascaras at Santa Fe, New Mexico 07/25/68 6,110 40.9 6,840 6

264 340128 1065515 Socorro Canyon at Socorro, New Mexico 08/01/56 5,380 42.2 4,900 6

265 340128 1065515 Socorro Canyon at Socorro, New Mexico None 7,650 42.2 4,900 6

266 340127 1070000 Socorro Canyon tributary near Socorro, New Mexico 08/01/56 9,480 6.67 5,560 6

267 351823 1063205 State Highway 422 Arroyo No. 1 at Bernalillo, New Mexico 07/19/56 1,320 1.28 5,110 6

268 351818 1063207 State Highway 422 Arroyo No. 2 at Bernalillo, New Mexico 07/19/56 104 0.02 5,110 6

269 351655 1063305 State Highway 422 Arroyo No. 3 at Bernalillo, New Mexico 07/19/56 1,540 2.63 5,080 6

270 334638 1060919 Taylor Canyon tributary 1 at culvert near Bingham, New Mexico 1959 3,890 3.99 5,980 6

271 334646 1061000 Taylor Canyon tributary 1 near Bingham, New Mexico 1959 6,770 3.58 6,000 6

272 334652 1061013 Taylor Canyon tributary 1A near Bingham, New Mexico 1959 3,040 2.16 6,040 6

273 350604 1062102 Tijeras Arroyo tributary No. 1 near Cedar Crest, New Mexico 07/15/60 307 0.31 6,500 6

274 350552 1062108 Tijeras Arroyo tributary No. 2 near Cedar Crest, New Mexico 07/15/60 142 0.15 6,540 6

275 350449 1062414 Tijeras Arroyo at Tijeras, New Mexico 1933 8,450 59.0 6,390 6
102 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 276 341229 1065526 U.S. Highway 85 Arroyo at Polvadera, New Mexico None 720 0.88 4,680 6 277 334607 1065427 U.S. Highway 85 Arroyo No. 1 near San Marcial, New Mexico 07/31/56 210 0.90 4,520 6 278 334549 1065450 U.S. Highway 85 Arroyo No. 2 near San Marcial, New Mexico 07/31/56 223 0.15 4,580 6 279 334535 1065521 U.S. Highway 85 Arroyo No. 3 near San Marcial, New Mexico 07/31/56 283 0.31 4,580 6 280 334535 1065521 U.S. Highway 85 Arroyo No. 4 near San Marcial, New Mexico 07/31/56 214 0.19 4,590 6 281 340718 1065439 U.S. Highway 85 Arroyo near Socorro, New Mexico None 490 0.36 4,730 6 282 340718 1065439 U.S. Highway 85 Arroyo near Socorro, New Mexico None 905 0.36 4,730 6 283 350416 1073134 Water Canyon at Budville, near Cuerbo, New Mexico 07/29/62 5,480 58.2 6,050 6 284 351938 1063135 Rio Grande tributary at State Highway 422 near Bernalillo, New Mexico 08/03/63 1,540 1.93 5,120 6 285 331845 1071728 Alamosa River near Truth or Consequences, New Mexico 09/04/67 27,500 643 4,680 7 286 322043 1064603 Alameda Arroyo at Las Cruces, New Mexico 08/22/65 1,960 15.6 4,050 7 287 321311 1045542 Box Canyon near El Paso Gap, New Mexico 08/23/66 5,450 87.0 4,510 7 288 323202 1065923 Broad Canyon near Radium Springs, New Mexico 09/13/58 11,400 36.0 4,000 7 289 330939 1071437 Cuchillo Negro River near Truth or Consequences, New Mexico 08/25/57 21,400 355 4,300 7 290 322951 1065628 Faulkner Canyon at Radium Springs, New Mexico 09/13/58 4,640 30.3 3,980 7 291 321450 1064320 Fillmore Arroyo near Tortugas, New Mexico 08/22/58 4,100 19.5 3,960 7 292 314555 1082312 Granite Pass Arroyo near Hachita, New Mexico Sep-58 1,200 4.00 4,360 7 293 315026 1075515 Hermanas Draw near Hermanas, New Mexico 09/11/58 618 24.5 4,360 7 294 330239 1071841 King Arroyo near Las Palomas, New Mexico 07/12/50 27,000 40.0 4,330 7 295 323121 1080021 Lampbright Draw tributary 1 near Faywood, New Mexico 07/25/57 2,400 24.1 4,880 7 296 323055 1075953 Lampbright Draw tributary 2 near Faywood, New Mexico 07/25/57 2,370 4.60 4,880 7

297 325330 1055639 McKinley Ditch No. 1 at Alamogordo, New Mexico 08/17/59 2,500 6.00 4,360 7

298 325317 1055706 McKinley Ditch No. 2 at Alamogordo, New Mexico 08/17/59 2,840 13.0 4,340 7

299 321315 1064212 Mesquite Drainage Ditch tributary near Mesquite, New Mexico 08/22/58 809 2.90 3,940 7

300 321436 1071940 Mimbres Basin Arroyo near Akela, New Mexico 09/13/58 2,270 40.0 4,240 7
Appendix 3 103

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

301 322235 1073629 Mimbres Basin Arroyo No. 1 near Florida, New Mexico 09/13/58 695 0.60 4,470 7

302 322223 1073628 Mimbres Basin Arroyo No. 2 near Florida, New Mexico 09/13/58 1,570 7.58 4,480 7

303 321628 1074016 Mimbres River near Deming, New Mexico 07/12/59 1,720 1,370 4,260 7

304 322656 1075542 Mimbres River tributary No. 1 near Spalding, New Mexico 07/25/57 465 4.69 4,730 7

305 330928 1071255 Mims Lake tributary near Truth or Consequences, New Mexico 09/14/76 1,810 0.80 4,280 7

306 325004 1071914 Montoyo Arroyo near Arrey, New Mexico 07/12/50 9,800 54.0 4,180 7

307 330729 1071742 Mud Springs Canyon near Truth or Consequences, New Mexico 07/12/50 10,850 20.9 4,300 7

308 330340 1071755 Palomas River at Los Palomas, New Mexico 07/12/50 18,800 239 4,260 7

309 324013 1071008 Placitas Arroyo at Hatch, New Mexico 09/13/58 3,360 27.0 4,060 7

310 322807 1075319 Porter Draw near Spalding, New Mexico 09/12/58 1,910 70.8 4,830 7

311 322952 1065628 Rio Grande tributary at Radium Springs, New Mexico 09/13/58 1,190 2.12 3,980 7

312 330714 1071558 Rio Grande tributary at Truth or Consequences, New Mexico 07/12/50 1,840 4.00 4,270 7

313 324122 1071048 Rio Grande tributary No. 2 near Salem, New Mexico 06/28/66 1,600 0.62 4,080 7

314 331635 1060401 Rocky Arroyo near Three Rivers, New Mexico 07/06/63 2,370 7.03 4,490 7

315 331635 1060401 Rocky Arroyo near Three Rivers, New Mexico 08/24/59 1,500 7.03 4,490 7

316 332808 1071447 San Jose Arroyo near Truth or Consequences, New Mexico 06/26/54 5,890 17.6 5,110 7

317 325904 1071815 Seco Creek near Caballo, New Mexico 07/12/50 9,000 86.6 4,240 7

318 315751 1074051 Seventy-six Draw near Waterloo, New Mexico 08/06/54 721 487 4,110 7

319 315616 1074016 Seventy-six Draw tributary No. 2 near Waterloo, New Mexico Sep-58 474 1.50 4,180 7

320 314903 1075139 Simpson Draw near Hermanas, New Mexico 10/14/58 1,810 94.0 4,200 7

321 314808 1074343 State Highway 9 Arroyo near Mimbres, New Mexico 09/11/58 467 3.55 4,300 7

322 321609 1064442 Tortugas Arroyo at Tortugas, New Mexico 08/22/58 5,880 21.7 3,930 7

323 331259 1060341 Tularosa Basin tributary near Three Rivers, New Mexico 08/24/59 1,940 2.53 4,470 7

324 325659 1055816 U.S. Highway 54 Arroyo near Alamogordo, New Mexico Aug-55 102 0.45 4,490 7

325 325349 1055636 Washington Ave Ditch at Alamogordo, New Mexico 08/17/59 245 2.20 4,400 7
104 Analysis of the Magnitude and Frequency of Peak Discharge and Maximum Observed Peak Discharge Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929] Map identi- fier (fig. 2) Latitude (DMS) Longi- tude (DMS) Miscellaneous site name Date Maximum peak discharge (cubic feet per second) Drainage area (square miles) Site elevation (feet above NGVD 29) Region 326 325349 1055636 Washington Ave Ditch at Alamogordo, New Mexico 08/26/59 288 2.20 4,400 7 327 313934 1085020 Animas Creek near Rodeo, New Mexico 09/13/58 1,030 248 4,860 7 328 314107 1085004 Animas Creek tributary near Rodeo, New Mexico None 450 4.78 4,850 7 329 314107 1085004 Animas Creek tributary near Rodeo, New Mexico None 375 4.78 4,850 7 330 322102 1084526 Lordsburg Draw tributary near Lordsburg, New Mexico 09/11/64 1,590 2.32 4,300 7 331 321045 1082258 Burro Cienaga near Separ, New Mexico Sep-58 7,310 47.6 ` 7 332 321300 1082649 Ninety-Six Creek near Separ, New Mexico Sep-58 4,730 43.3 4,480 7 333 314426 1061941 Jesuit Draw at El Paso, Texas 08/18/63 1,630 1.49 3,780 7 334 314325 1061905 Pendall Draw at El Paso, Texas 08/18/63 838 1.71 3,790 7 335 323248 1082439 Keese Canyon near White Signal, New Mexico Sep-58 954 1.24 6,220 8 336 323244 1082515 Keese Canyon tributary near White Signal, New Mexico Sep-58 320 0.19 6,280 8 337 323642 1075321 Mimbres River tributary near Dwyer, New Mexico 09/01/58 2,790 6.34 5,140 8 338 325532 1073442 North Percha Creek at Hillsboro, New Mexico 09/31/72 20,900 41.4 5,310 8 339 325515 1073420 Percha Creek at Hillsboro, New Mexico 1952 1,220 34.6 5,310 8 340 325515 1073420 Percha Creek at Hillsboro, New Mexico 09/22/52 4,300 34.6 5,310 8 341 323116 1082658 Walking X Canyon tributary near White Signal, New Mexico Sep-58 770 1.19 6,060 8 342 325805 1083703 Duck Creek tributary at Cliff, New Mexico Aug-58 1,570 15.0 4,500 8 343 334426 1084352 Largo Canyon tributary near Reserve, New Mexico 07/19/60 882 29.6 5,970 8 344 325701 1083658 Lobo Creek at Cliff, New Mexico 08/04/66 4,890 12.7 4,500 8 345 322926 1083251 Wood Canyon tributary near Lordsburg, New Mexico Sep-58 603 0.27 5,680 8 346 322921 1083301 Wood Canyon tributary 1A near Lordsburg, New Mexico Sep-58 518 0.34 5,700 8

347 332839 1085338 Saliz Canyon tributary near Reserve, New Mexico 07/20/59 414 0.30 6,040 8

348 330213 1081231 Sapillo Creek near Pinos Altos, New Mexico 08/01/62 2,180 111 5,840 8

349 321326 1090118 Steins Creek tributary near Steins, New Mexico Sep-58 380 0.55 4,210 8

350 322936 1083222 Peterson Canyon near Lordsburg, New Mexico Sep-58 432 1.30 5,720 8
Appendix 3 105

Appendix 3. Miscellaneous sites, maximum peak discharge, drainage area, and site elevations.—Continued [DMS, degrees minutes seconds; NGVD 29, National Geodetic Vertical Datum of 1929]

Map 

identifier 

(fig. 2)

Latitude 

(DMS)

Longitude 

(DMS)

Miscellaneous 

site name Date

Maximum 

peak discharge 

(cubic feet 

per second)

Drainage 

area 

(square 

miles)

Site 

elevation 

(feet above 

NGVD 29)

Region

351 325120 1075835 Willow Springs Canyon at Mimbres, New Mexico 07/31/70 158 3.84 8

352 325120 1075835 Willow Springs Canyon at Mimbres, New Mexico 07/15/72 98 3.84 8

353 325120 1075835 Willow Springs Canyon at Mimbres, New Mexico 08/04/74 1,180 3.84 8

354 352824 1082507 Four Mile Canyon near Coolidge, New Mexico None 690 10.4 7,120 9

355 353150 1084522 Gamerco Wash above Maloney Street Gallup, New Mexico 07/22/77 930 6.70 6,500 9

356 353036 1083233 South Fork Puerco River tributary at Fort Wingate, New Mexico Sep-58 1,950 3.60 6,740 9

357 352604 1082010 South Fork Puerco River tributary No. 1 near Coolidge, New Mexico 08/06/59 877 0.60 7,150 9

358 352748 1082112 South Fork Puerco River tributary No. 2 near Coolidge, New Mexico 08/06/59 5,250 5.10 7,060 9

359 352618 1082125 South Fork Puerco River tributary No. 3 near Coolidge, New Mexico 08/06/59 679 0.80 7,190 9

360 353100 1084105 Perritti Canyon near Gallup, New Mexico 07/31/56 4,940 9.00 6,610 9

361 353108 1084118 Perritti Canyon tributary near Gallup, New Mexico 07/31/56 1,230 0.52 6,610 9

362 352850 1085018 Saltwater Wash near Montmore, New Mexico 08/17/58 3,810 39.0 6,320 9

363 352659 1082257 Smith Canyon near Coolidge, New Mexico None 534 6.60 7,110 9

364 352659 1082257 Smith Canyon near Coolidge, New Mexico July-56 337 6.60 7,110 9

365 352650 1082153 Foster Canyon at Coolidge, New Mexico None 1,660 16.7 7,100 9

366 352650 1082153 Foster Canyon at Coolidge, New Mexico None 172 16.7 7,100 9

367 352650 1082153 Foster Canyon at Coolidge, New Mexico 07/08/56 118 16.7 7,100 9
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