NWS FORM E-19 (COVER)

U.S. DEPARTMENT OF COMMERCE

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

NATIONAL WEATHER SERVICE

REPORT ON RIVER GAGE STATION

REVISED, PRINTED DATES: 01/09/2005, 12/20/2006

LOCATION: Decatur

STREAM: Tennessee River

BASIN: Tennessee HSA: HUN

REFERENCES:

FROM USGS DESCRIPTION OF GAGING STATION.

ZERO DATUM BASED ON WHITESBURG ZERO DATUM. ACTUAL MSL HEIGHT IS LOWER.

ABBREVIATIONS:

BM - bench mark EPA - Environmental Protection Agency

DS - downstream IBWC - International Boundary and Water Comm.

US - upstream MSRC - Mississippi River Commission

HW - high water MORC - Missouri River Commission

LW - low water NOAA - National Oceanic and Atmospheric Admin.

RB - right bank NOS - National Ocean Survey

LB - left bank NWS - National Weather Service

MGL - mean gulf level TVA - Tennessee Valley Authority

MLW - mean low water USACE - U.S. Army Corps of Engineers

MSL - mean sea level USBR - U.S. Bureau of Reclamation

MLT - mean low tide USGS - U.S. Geological Survey

MT - mean tide USWB - U.S. Weather Bureau

WQ - water quality NGVD - National Geodetic Vertical Datum

RM - reference mark NAD - North American Datum

RP - reference point

LOCATION IDENTIFICATION: DECA1

NWS INDEX NUMBER:

USGS NUMBER: 03577150

MAP OF GAGE LOCATION

LATITUDE: 34 36 47 SOURCE: USGS WATER YEAR BOOK

LONGITUDE: 86 58 26

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LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 1: GAGE MAP

BENCHMARKS

ELEVATION OF GAGE ZERO: 549.000 VERTICAL DATUM: NGVD

LEVELING AGENCY AND DATE: CHECKBAR:

RATING AGENCY:

BENCHMARK DESCRIPTION GAGE ZERO DATUM

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RM-1 STANDARD USGS MARK TABLET IN THE TOP OF RIGHT WALL OF NORTH BASCULE
PIER 8.260 557.260

OF THE HIGHWAY BRIDGE. IT IS ONE FOOT FROM THE RIGHT EDGE OF THE PIER
AND

10 FT UPSTREAM/10 FT TO THE RIGHT OF RIGHT UPSTREAM CORNER OF THE GAGE

HOUSE. (557.26 MSL)

RM-3 COPPER BOLT SET IN TOP OF THE DRAW PIER OF THE RAILROAD BRIDGE, 1/2
MILE 14.893 563.893

DOWNSTREAM FROM THE GAGE. SET 6 INCHES BACK FROM THE DS SIDE OF THE
PIER,

BETWEEN THE SIDES OF AN IRON LADDER, DIRECTLY OVER OLD USWB GAGE.

(563.893)

RM-4 CROSS CUT ON THE BRIDGE SEAT STONE 1 FOOT FROM THE DS END OF THE
LEFT 18.961 567.961

ABUTMENT OF THE RAILROAD BRIDGE, 1/2 MILE DS OF THE GAGE. (567.961)

RM-6 STANDARD USGS BRONZE TABLET SET IN THE BASE OF THE GAGE HOUSE STEPS
IN 9.998 558.998

FRONT OF DOOR.

RM-7 BOLT SET IN THE TOP OF THE LEFT HORIZONTAL CONCRETE STRUT IN THE
LEFT BANK 5.771 554.771

PIER OF THE HIGHWAY BRIDGE\...ONE FOOT UPSTREAM FROM THE INSIDE FACE OF

THE DS PIER WALL. (554.771)

RM-8 (8/21/06) 3/8 INCH LAG BOLT IN UTILITY POLE 25 FEET SOUTH OF GAGE
HOUSE. 11.374 560.374

RM-9 (8/21/06) 3/8 INCH LAG BOLT IN STREAMWARD SIDE OF 4X6 HOLDING 1ST
STAFF. 7.903 556.903

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 2: BENCHMARKS

GAGES

DCP TELEM

NESS ID: 17C1B6FA TYPE OF TELEMETRY:

OWNER: USGS OWNER:

REPORT TIME: 03:55 PHONE NUMBER:

INTERVAL: 240 INTERVAL:

PAYOR/COST OF LINE: / \$

GAGE TYPE OWNER MAINTENANCE BEGAN ENDED GAGE LOCATION/REMARKS

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Unk TVA TVA 12/01/1926 09/30/1990

pres trans USGS USGS 10/01/1990 USGS WATER STAGE RECORDER WITH DCP. TOOK
OVER OPERATION FROM TVA.

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 3: GAGES

HISTORY

PUBLICATION/LOCATION OF RECORDS STARTING DATE ENDING DATE

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TYPE OF GAGE OWNER STARTING DATE ENDING DATE

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Unk TVA 12/01/1926 09/30/1990

pres trans USGS 10/01/1990

ZERO ELEVATION STARTING DATE

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549.000 10/01/1936

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 4: HISTORY

CRESTS

FLOOD STAGE: 10.00 ACTION STAGE: 9.00 BANKFULL STAGE:

FLOOD FLOW: ACTION FLOW:

DATE OF TIME CREST FLOW FROM HIGH BASED ON CAUSED BY

CREST LST (ft) (CFS) WATERMARKS OLD DATUM ICE JAM REMARKS

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03/15/1867 UNDEF 14.80

03/18/1973 UNDEF 9.97

08/13/2001 UNDEF 8.07

02/18/2003 16:45 8.23

05/10/2003 12:30 10.29

02/08/2004 11:00 8.09

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 5: CRESTS

LOW WATER RECORDS

DATE OF STAGE FLOW

LOW WATER (ft) (CFS) REMARKS

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12/08/1962 -0.10

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 6: LOW WATER

CONDITIONS AFFECTING FLOW

MILES ABOVE MOUTH: 305.1 DRAINAGE AREA: 26900.0 POOL STAGE:

STREAM BED: WIDE DUE TO WHEELER LAKE.

REACH: APPROX 7 MI US TO 3 MI DS.

REGULATION: REGULATED BY GUNTERSVILLE DAM UPSTREAM AND WHEELER DAM

DOWNSTREAM.

DIVERSION: NONE.

WINTER: NONE.

TOPOGRAPHY: FLATLAND RIVER VALLEY.

REMARKS: NONE.

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 7: CONDITIONS

DAMAGE

STAGE AREAS AFFECTED

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9.00 ACTION STAGE. WATER BEGINS TO BACK UP FROM THE TENNESSEE RIVER INTO
TRIBUTARIES. FLOODING OF A ROADSIDE PARK ON THE LIMESTONE COUNTY BANK OF
THE RIVER ON US 31 IS OCCURRING.

10.00 FLOOD STAGE. PORTIONS OF MARKET STREET AND COUNTRY CLUB ROAD IN
DECATUR ARE COVERED BY WATER\...AND A PORTION OF POINT MALLARD PARK
FLOODS. FLOODING ALSO AFFECTS LOW LYING AREAS OF LIMESTONE COUNTY WITHIN
THE WHEELER WILDLIFE REFUGE.

10.29 RECORD FLOOD (POST-DAM). OCCURRED ON 05/10/2003. THIS IS THE
HIGHEST FLOOD ON RECORD SINCE THE INSTALLATION OF DAMS AT WHEELER AND
GUNTERSVILLE.

> 12.00 MODERATE FLOODING. EXTENSIVE BACKWATER FLOODING IS OCCURRING ON
> FLINT CREEK AND SWAN CREEK NEAR DECATUR. FLOODWATERS MAY THREATEN
> HOMES ALONG THE RIVER EDGE\...AND CAUSE ROAD CLOSURES.
>
> 14.00 MAJOR FLOODING. MAJOR TRIBUTARY FLOODING IS OCCURRING DUE TO
> BACKWATER. SIGNIFICANT PORTIONS OF THE CITY OF DECATUR\...NEAR THE
> TENNESSEE RIVER AND FLINT CREEK\...ARE FLOODED. POINT MALLARD PARKWAY
> BETWEEN US 31 AND PRICEVILLE IS COMPLETELY FLOODED AND CLOSED.
> PORTIONS OF SOUTHERN LIMESTONE COUNTY NEAR WHEELER LAKE ARE FLOODED.

14.80 RECORD FLOOD (PRE-DAM). OCCURRED ON 03/15/1867 (BEFORE THE
INSTALLATION OF DAMS ALONG THE TENNESSEE RIVER).

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 8: DAMAGE

RIVER STAGE DATA

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14.80 - RECORD FLOOD (PRE-DAM). OCCURRED ON 03/15/1867 (BEFORE THE
INSTALLATION OF DAMS ALONG \|\-\-\-\--\| 14.80 03/15/1867

THE TENNESSEE RIVER). \|\-\-\-\--\|

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\| 14-\|

14.00 - MAJOR FLOODING. MAJOR TRIBUTARY FLOODING IS OCCURRING DUE TO
BACKWATER. SIGNIFICANT \|\-\-\-\--\|

PORTIONS OF THE CITY OF DECATUR\...NEAR THE TENNESSEE RIVER AND FLINT
CREEK\...ARE \|\-\-\-\--\|

FLOODED. POINT MALLARD PARKWAY BETWEEN US 31 AND PRICEVILLE IS
COMPLETELY FLOODED \|\-\-\-\--\|

AND CLOSED. PORTIONS OF SOUTHERN LIMESTONE COUNTY NEAR WHEELER LAKE ARE
FLOODED. \|\-\-\-\--\|

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12.00 - MODERATE FLOODING. EXTENSIVE BACKWATER FLOODING IS OCCURRING ON
FLINT CREEK AND SWAN \|\-\-\-\--\|

CREEK NEAR DECATUR. FLOODWATERS MAY THREATEN HOMES ALONG THE RIVER
EDGE\...AND CAUSE \|\-\-\-\--\|

ROAD CLOSURES. \|\-\-\-\--\|

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10.29 - RECORD FLOOD (POST-DAM). OCCURRED ON 05/10/2003. THIS IS THE
HIGHEST FLOOD ON RECORD \|\-\-\-\--\| 10.29 05/10/2003

SINCE THE INSTALLATION OF DAMS AT WHEELER AND GUNTERSVILLE. \| 10-\|

10.00 - FLOOD STAGE. PORTIONS OF MARKET STREET AND COUNTRY CLUB ROAD IN
DECATUR ARE COVERED \|\-\-\-\--\| 9.97 03/18/1973

BY WATER\...AND A PORTION OF POINT MALLARD PARK FLOODS. FLOODING ALSO
AFFECTS LOW \|\-\-\-\--\|

LYING AREAS OF LIMESTONE COUNTY WITHIN THE WHEELER WILDLIFE REFUGE.
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\| 9-\|

9.00 - ACTION STAGE. WATER BEGINS TO BACK UP FROM THE TENNESSEE RIVER
INTO TRIBUTARIES. \|\-\-\-\--\|

FLOODING OF A ROADSIDE PARK ON THE LIMESTONE COUNTY BANK OF THE RIVER ON
US 31 IS \|\-\-\-\--\|

OCCURRING. \|\-\-\-\--\|

\|\-\-\-\--\| 8.23 02/18/2003

\| 8-\| 8.09 02/08/2004

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REACH: APPROX 7 MI US TO 3 MI DS. ELEVATION ZERO: 549.00

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 9: STAFF

CONTACTS

SQ CONTACT/REMARKS PHONE

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1 Morgan County EMA 256-351-4620

Director: Eddie Hicks

LOCATION: Tennessee River AT Decatur, AL Revised, Printed Dates:
01/09/2005, 12/20/2006

ID: DECA1 HSA: HUN NWS FORM E-19 PAGE 10: CONTACTS

Photos not available at this time.