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Flynn, R.H.—Scoping of Flood Hazard Mapping Needs for Carroll County, New Hampshire—Open-File Report 2006–1236
Scoping of Flood Hazard Mapping Needs for 

Carroll County, New Hampshire

By Robert H. Flynn

U.S. Department of the Interior

U.S. Geological Survey

Prepared for the

Federal Emergency Management Agency, Region 1

Open-File Report 2006–1236
U.S. Department of the Interior

DIRK KEMPTHORNE, Secretary

U.S. Geological Survey

P. Patrick Leahy, Acting Director

U.S. Geological Survey, Reston, Virginia: 2006

For sale by U.S. Geological Survey, Information Services

Box 25286, Denver Federal Center

Denver, CO 80225

For more information about the USGS and its products:

Telephone: 1-888-ASK-USGS

World Wide Web: http://www.usgs.gov/

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply 

endorsement by the U.S. Government.

Although this report is in the public domain, permission must be secured from the individual copyright owners to 

reproduce any copyrighted materials contained within this report.
Acknowledgments

The author thanks Debra Foster for her assistance in contacting towns in Carroll County to obtain 

preliminary scoping needs information and for editing this report, Laura Hayes for her assistance 

in entering effective stream information for Carroll County into the WISE (Watershed Information 

SystEm) Scoping module, and Ann Marie Squillacci and Tina Cotton for their help in publishing this 

report.
 iii

Contents

Section 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Background. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Scope of Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Section 2. Data Collected from Carroll County Communities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Community Flood Insurance Studies and Flood Insurance Rate Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Delineation of Detailed and Approximate Study Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Letters of Map Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Letters of Map Change in Carroll County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Mapping Needs Update Support System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Mapping Needs in Carroll County, New Hampshire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

State and Community Meetings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Meeting with New Hampshire Office of Emergency Management (NHOEM) and 

Scoping Team Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Carroll County Community Meetings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Available Digital Mapping and Remotely Sensed Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Data-Collection Efforts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

NH GRANIT Data Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Community Data Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Stream Final Coverage Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Section 3. Options for Future Mapping and Digital Terrain Model Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Mapping Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Base Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Digital Terrain Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Flood Insurance Risk Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Suitability of the Available Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

USGS of GRANIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Community Data Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

County Data Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Base Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Digital Terrain Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Flood Insurance Risk Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Mapping Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Base Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Digital Terrain Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Flood Insurance Risk Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Section 4. Hydrologic and Hydraulic Restudy Needs and Prioritization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Mapping Needs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Prioritization Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Prioritization Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Non-Participating Communities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Section 5. Recommendations and Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Mapping Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Mapping Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
 iv

Project Alternatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Selected References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Appendixes:

Appendix A. Summary of Letters of Map Change (LOMC) Data in Carroll County. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Appendix B. Mapping Needs Update Support System (MNUSS) Needs Assessment Reports Summary. . . . 37

Appendix C. State and Community Meetings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Appendix D. Prioritized Flooding Sources in Carroll County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figures

1. Carroll County, New Hampshire, location map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Carroll County, New Hampshire, hydrography and FEMA Digital Flood Insurance Rate Map 

(DFIRM) data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Letter of Map Change (LOMC) and community location map in Carroll County, New Hampshire . . . . . . . . . 9

4. Carroll County, New Hampshire, stream final coverage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Tables

1. Carroll County, New Hampshire, communities and populations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. FIS and FIRM information for communities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. Summary of specific mapping needs in Carroll County, New Hampshire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4. FIRM horizontal accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5. National standard for spatial data accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6. Currently available high resolution orthophotography for Carroll County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7. Estimate of costs to obtain Digital Terrain Model data (2-ft contours). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8. Community flooding source prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
v

CONVERSION FACTORS AND ABBREVIATIONS

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

OTHER ABBREVIATIONS USED IN REPORT

Multiply By To obtain

Length

inch (in.) 25.4 millimeter (mm)

foot (ft) 0.3048 meter (m)

mile (mi) 1.609 kilometer (km)

Area

square foot (ft2) 0.09290 square meter (m2)

square inch (in2) 6.452 square centimeter (cm2)

square mile (mi2) 2.590 square kilometer (km2)

Volume

cubic foot (ft3) 0.02832 cubic meter (m3)

Slope

foot per mile (ft/mi) 0.1894 meter per kilometer (m/km)

Velocity and Flow

foot per second (ft/s) 0.3048 meter per second (m/s)

cubic foot per second (ft3

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

APFO Aerial Photography Field Office

BFE Base Flood Elevation

CAC Community Assistance Contact

CAV Community Assistance Visit

cfs cubic feet per second

CID Community Identification

CIS Community Information System

COTR Contracting Officer’s Technical Representative

CTP Cooperating Technical Partner

DEM Digital Elevation Model

DFIRM Digital Flood Insurance Rate Map

DOQ Digital Orthophoto Quadrangle

DOQQ Digital Ortho Quarter Quadrangle

DTM Digital Terrain Model

FBFM Flood Boundary and Floodway Map

FEMA Federal Emergency Management Agency

FHBM Flood Hazard Boundary Map

FIRM Flood Insurance Rate Map

FIS Flood Insurance Study
 vi

GIS Geographic Information System

GRANIT Geographically Referenced ANalysis and Information Transfer system

GSP Ground Sample Distance

H&H Hydrologic and Hydraulic

LiDAR Light Detection and Ranging

LOMA Letter of Map Amendment

LOMC Letters of Map Change

LOMR Letter of Map Revision

LOMR-F Letter of Map Revision based on Fill

MNA Mapping Needs Assessment

MNUSS Mapping Needs Update Support System

MrSID Multi-resolution Seamless Image Database

NAIP National Agriculture Imagery Program

NDOP National Digital Ortho Program

NED National Elevation Dataset

NFIP National Flood Insurance Program

NHD National Hydrography Dataset

NHDOT New Hampshire Department of Transportation

NHOEM New Hampshire Office of Emergency Management

NHOEP New Hampshire Office of Energy and Planning

NSSDA National Standard for Spatial Data Accuracy

RMC Regional Management Center

SFHA Special Flood Hazard Area

TIN Triangulated Irregular Network

UNH University of New Hampshire

USACE United States Army Corps of Engineers

USDA United States Department of Agriculture

USEPA United States Environmental Protection Agency

USGS United States Geological Survey

UTM Universal Transverse Mercator

WISE Watershed Information System
 1

Scoping of Flood Hazard Mapping Needs for 

Carroll County, New Hampshire

By Robert H. Flynn

Section 1. Introduction

This report was prepared by the U.S. Geological Survey (USGS) New Hampshire/Vermont Water 

Science Center for scoping of flood-hazard mapping needs for Carroll County, New Hampshire, under Federal Emergency Management Agency (FEMA) Inter-Agency agreement Number HSFE01-05X-0018. This 

section of the report explains the objective of the task and the purpose of the reports.

Background

FEMA is embarking on a map modernization program nationwide to:

1. Gather and develop updated data for all flood prone areas in support of flood plain management.

2. Provide maps and data in a digital format for the improvement in the efficiency and precision of the 

mapping program.

3. Integrate FEMA’s community and state partners into the mapping process.

One of the priorities for FEMA, Region 1, is to develop updated Digital Flood Insurance Rate Maps 

(DFIRMs) and Flood Insurance Studies (FIS) for Carroll County, New Hampshire. The information provided in this report will be used to develop the scope for the first phase of a multiyear project that will ultimately result in the production of new DFIRMs and FIS for the communities and flooding sources in Carroll 

County.

The average age of the FEMA flood plain maps in Carroll County, New Hampshire is 18 years. Most 

of these studies were computed in the late 1970s to the mid 1980s. However, in the ensuing 20–30 years, 

development has occurred in many of the watersheds, and the rivers and streams and their flood plains have 

changed as a result. In addition, as development has occurred, peak flooding has increased downstream of 

the development from increased flows across impervious surfaces. Therefore, many of the older studies may 

not depict current conditions nor accurately estimate risk in terms of flood heights.

Carroll County gained 3,773 residents between 2000 and 2005. This represents a growth of 8.6 percent 

compared to 6.0 percent for the state as a whole. Carroll County ranks second (from highest to lowest) out 

of New Hampshire’s 10 counties in terms of rate of population increase. Since 1990, Carroll County has 

gained 12,029 residents (University of New Hampshire, 2006).
 2

Scope of Work

The following is the scope of work as defined in the FEMA/USGS Statement of Work:

Task 1: Collect data from a variety of sources including community surveys, other Federal and State 

Agencies, National Flood Insurance Program (NFIP) State Coordinators, Community Assistance Visits 

(CAVs) and FEMA archives. Lists of mapping needs will be obtained from the Mapping Needs Update 

Support System (MNUSS) database, community surveys, and CAVs, if available. FEMA archives will be 

inventoried for effective Flood Insurance Rate Maps (FIRM) panels, FIS reports, and other flood hazard 

data or existing study data. Best available base map information, topographic data, flood hazard data, and 

hydrologic and hydraulic (H&H) data will be identified and obtained. FEMA Letters of Map Change 

(LOMC) areas will also be identified.

Task 2: Contact communities in Carroll County to notify them that FEMA and the State have selected 

them for a map update, and that a project scope will be developed with their input. Topics to be reviewed 

with the communities include (1) Purpose of the Flood Map Project (for example, the update needs that have 

prompted the map update); (2) The community's mapping needs; (3) The community’s available mapping, 

hydrologic, hydraulic, and flooding information; (4) Target schedule for completing the project; and (5) The 

community’s engineering, planning, and geographic information system (GIS) capabilities. When requested 

by the community, or when needed to obtain information on mapping needs and available information, the 

USGS will schedule meetings with individual communities. 

Based on the collected information from Task 1 and community contacts/meetings in Task 2, the USGS 

will develop a Draft Project Scope for the identified mapping needs of the communities in Carroll County. 

The following items will be addressed in the Draft Project Scope: review of available information; determine if and how the currently effective FIS data can be used in new project; identify other data needed to 

complete the Project and its source; and the DFIRM format. The Draft Project Scope will establish priority 

levels for flooding sources to be analyzed and mapped, and estimate schedules for completion of the components of flood mapping.

The USGS is to supply the FEMA Contracting Officer’s Technical Representative (COTR) with a 

report summarizing the following:

1. Available data and collected information on mapping needs.

2. Documentation of meetings and contacts.

3. Suitability of existing data and options for future mapping.

4. Restudy needs and priorities.

5. Recommended project scope and cost.

This report provides a summary of data-collection efforts conducted for this task, as well as information 

on available mapping/remote sensing data. The report includes recommendations for providing needed 

mapping/remote sensing data to accomplish the ultimate goal of producing new DFIRMs. It also provides 

options for accomplishing this goal within the context of FEMA’s Cooperating Technical Partner (CTP) 

Program. The report begins the process of establishing restudy priorities in Carroll County. 

The communities of Carroll County and their populations are listed in table 1, and the location of Carroll County in New Hampshire is shown in figure 1. The Carroll County Hydrography and FEMA DFIRM 

Data, county communities, rivers and streams and flood zones are shown in figure 2. 
Table 1. Carroll County, New Hampshire, communities and populations.

County/Town Year 2000 

population

Land area 

(square mile)

Population per 

square mile

Carroll County 43,666 934 46.8

Albany 654 74.7 8.8

Bartlett 2,705 75.3 35.9

Brookfield 604 22.9 26.4

Chatham 260 56.7 4.6

Conway 8,604 69.7 123.4

Eaton 375 24.4 15.4

Effingham 1,273 38.5 33.1

Freedom 1,303 34.7 37.6

Hale’s Location 58 2.4 24.2

Hart’s Location 37 18.6 2.0

Jackson 835 66.9 12.5

Madison 1,984 38.7 51.3

Moultonborough 4,484 59.8 75.0

Ossipee 4,211 71.2 59.1

Sandwich 1,286 90.6 14.2

Tamworth 2,510 59.9 41.9

Tuftonboro 2,148 41.1 52.3

Wakefield 4,252 39.3 108.2

Wolfeboro 6,083 48.3 125.9

 3
72°

71°

45°

44°

43°

0 10 20 30 40

Coos

Grafton

Hillsborough Rockingham

Belknap

Strafford

Carroll

Sullivan

Cheshire

Merrimack

50 MILES

0 10 20 30 40 50 KILOMETERS

4

Figure 1. Carroll County, New Hampshire, location map.
71°

44°15'

Jackson

Chatham

Eaton

Conway

Tamworth

Albany

Harts

Location

Madison

Sandwich

Moultonborough

Tuftonboro

Ossipee Effingham

Freedom

Wolfeboro

Brookfield

Wakefield

Bartlett

71o15'

71o30'

43o30'

0 5 10 MILES

0 5 10 KILOMETERS

Base from U.S. Geological Survey 

Digital Line Graphs, 1:24,000, 1990-94 and

National Hydrography Dataset, 1:24,000, 1999

Lake 

Winnipesaukee

43°45'

44°

A

AE

X

Hydrography

EXPLANATION

Flood Insurance Rate zones

(See page 7)

5

Figure 2. Carroll County, New Hampshire, hydrography and FEMA Digital Flood Insurance Rate Map (DFIRM) 

data.
 6

Section 2. Data Collected from Carroll County Communities

This section provides a summary of the data-collection efforts for communities in Carroll County relating to the most recent community FISs and FIRMs; Letter of Map Amendments (LOMAs) and Letter of 

Map Revisions (LOMRs); information from the MNUSS database; and state and community meetings, and 

information on the location of existing remote-sensing data. 

The flood-hazard information obtained in the data-collection efforts are summarized in figure 2, and 

include:

• State, county, and community boundaries.

• Water features.

• Limits of existing detailed and approximate study within Carroll County.

These maps can be continually updated in the future as new information becomes available.

Community Flood Insurance Studies and Flood Insurance Rate Maps

A summary of FIS and FIRM dates for the communities located in Carroll County are listed in 

table 2.

Table 2. FIS and FIRM information for communities.

[FIS, Flood Insurance Studies; FIRM, Flood Insurance Rate Map; FHBM, Flood 

Hazard Boundary Map; NSFHA, No Special Flood Hazard Area; --, no data]

Community Date of entry FIRM/FHBM date FIS date

Albany 3/1/1995 3/1/1995 --

Bartlett 5/1/1979 3/1/1984 3/1/1984

Brookfield 5/17/1977 5/17/1977 --

Chatham 1/3/1975 1/3/1976 --

Conway 4/16/1979 6/3/2002 6/3/2002

Eaton 1/17/1975 1/17/1976 --

Effingham 1/17/1975 1/17/1976 --

Freedom 12/1/1992 7/3/1995 7/3/1995

Hart’s Location 3/2/1998 (NSFHA) --

Jackson 7/2/1979 7/2/1979 7/2/1979

Madison 8/1/2005 11/29/1977 --

Moultonborough 3/1/2000 3/1/2000 --

Ossipee 6/17/1991 7/3/1995 7/3/1995

Sandwich 7/17/1986 9/2/1993 --

Tamworth 7/16/1991 7/16/1991 7/16/1991

Tuftonboro 5/4/1989 5/4/1989 5/4/1989

Wakefield 6/17/1991 6/17/1991 6/17/1991

Wolfeboro 5/17/1989 5/17/1989 5/17/1989
7

The effective map dates range from 1976 in the Towns of Chatham, Eaton and Effingham to 2002 in 

the Town of Conway. Fifty percent of the FIRMs were produced prior to 1989 and are 17 years old or older. 

The oldest FIRM is 29 years old, the most recent is 3 year old, and the average is 18 years old. Most (over 

70 percent) of the FIS analyses were performed between 1976 and 1989 and have not been updated. 

Delineation of Detailed and Approximate Study Areas

Digital Q3 Flood Data have not been developed for Carroll County to determine the areas of detailed 

study (Zone AE) and areas of approximate study (Zone A) within the communities. FEMA digital Q3 flood 

data is the electronically scanned currently effective map panels of an existing paper FIRM. Digital FIRM 

Data were created and provided by the University of New Hampshire Geographically Referenced ANalysis 

and Information Transfer system (UNH GRANIT) (Jenn Merriam, written commun., October 14, 2005) for 

this report. These data had not been quality checked by FEMA’s contractors as of the date received. 

GRANIT, a collaborative effort between the University of New Hampshire and the New Hampshire Office 

of Energy and Planning (NHOEP), is a cooperative project to create, maintain, and make available a statewide geographic data base serving the information needs of state, regional, and local decision-makers. Definitions of flood insurance rate Zones A and AE are provided below:

• Zone AE: Zone AE is the flood insurance rate zone that corresponds to the 100-year flood plains 

that are determined in the FIS by detailed methods. In most instances, whole-foot base flood elevations (BFEs) derived from the detailed hydraulic analyses are shown at selected intervals within this 

zone.

• Zone A: Zone A is the flood insurance rate zone that corresponds to the 100-year flood plains that 

are determined in the FIS by approximate methods. Because detailed hydraulic analyses are not performed for these areas, no BFEs or depths are shown within this zone.

• Zone X: The flood insurance rate zone that corresponds to areas outside of the 500-year flood plain, 

areas within the 500-year flood plain, and to areas of the 100-year flood plain where average depths 

are less than 1 foot, areas of the 100-year flooding where the contributing drainage area is less than 

1 square mile, and areas protected from the 100-year flood by levees. No BFEs or depths are shown 

in this zone.

Letters of Map Change

A LOMC is a letter issued by FEMA in response to a request to revise or amend an effective NFIP map 

to remove a property or reflect changed flooding conditions on the effective map. LOMCs may include 

LOMAs and LOMRs, as defined below:

• LOMAs: A LOMA is an official amendment, by letter, to an effective NFIP map. A LOMA establishes a property’s location in relation to the Special Flood Hazard Area (SFHA). There is no appeal 

period for LOMAs, and the letter becomes effective the date that it is sent.

• LOMRs: A LOMR is an official revision, by letter, to an effective NFIP map. A LOMR may 

change flood insurance risk zones, flood plain and(or) floodway boundary delineations, planimetric 

features, and(or) BFEs. The effective date of a LOMR depends on the type of change requested. For 

example, some LOMR’s are effective on the date that the letter is issued and others become effective 

following an appeal period (typically 30 to 90 days or 6 months).
8

• LOMR-F: A Letter of Map Revision based on Fill (LOMR-F) may be filed as a special case of the 

LOMR. A LOMR-F provides FEMA’s determination concerning whether a structure or parcel has 

been elevated on fill above the BFE and excluded from the SFHA. A LOMR-F is an official revision, by letter, to an effective NFIP map. The letter becomes effective on the date that it is sent.

In addition to the categories above, conditional LOMAs, LOMRs, and LOMR-Fs may be issued by 

FEMA to comment on a proposed project. The letter does not revise an effective NFIP map, but indicates 

whether the project, if built as proposed, would be recognized by FEMA.

Letters of Map Change in Carroll County

LOMCs were collected for each of the communities.

A summary of the LOMCs obtained from FEMA (http://msc.fema.gov) and the NHOEM is provided 

in appendix A. The summary table in appendix A includes the LOMC case number, effective date, flooding 

source, location, area/structure removed from SFHA, and new flood zone. The location of each LOMC is 

shown in figure 3.
Jackson

Chatham

Eaton

Conway

Tamworth

Albany

Harts

Location

Madison

Sandwich

Moultonborough

Tuftonboro

Ossipee Effingham

Freedom

Wolfeboro

Brookfield

Wakefield

Bartlett

71o15'

71o30'

43o30'

0 5 10 MILES

0 5 10 KILOMETERS

Base from U.S. Geological Survey 

Digital Line Graphs, 1:24,000, 1990-94 and

National Hydrography Dataset, 1:24,000, 1999

Lake 

Winnipesaukee

43°45'

44°

Hydrography

LOMC

EXPLANATION

71°

44°15'

9

Figure 3. Letter of Map Change (LOMC) and community location map in Carroll County, New Hampshire.
 10

Mapping Needs Update Support System

In accordance with section 575 of the National Flood Insurance Reform Act of 1994, FEMA assesses 

“...the need to revise and update all flood plain areas and flood-risk zones identified, delineated, or established based on analysis of all natural hazards affecting flood risks.” FEMA initiated the Mapping Needs 

Assessment (MNA) process, which identifies and prioritizes flood-hazard mapping needs for communities 

nationwide. As part of this effort, FEMA developed the MNUSS, which is an interactive, web-based software application that maintains an inventory of needs for future map updates. In particular, MNUSS stores 

information on the following two types of update needs:

• Map Maintenance Needs: Includes changes to base map information, such as the addition of new 

roads, changes to corporate limits, and incorporation of LOMCs.

• Flood Data Update Needs: Includes changes to flood-hazard areas as a result of changes in H&H 

conditions, changes to BFEs, and(or) changes in the flood plain delineation.

Mapping needs may be viewed and entered into MNUSS by a variety of parties, including FEMA 

Headquarters and Regional offices, state NFIP coordinators, study contractors, CTPs, and other Federal 

agencies, such as the U.S. Army Corps of Engineers (USACE) and the USGS. All needs are reviewed and 

approved by the FEMA MNUSS controller prior to office entry into the system.

Mapping Needs in Carroll County, New Hampshire

Information on mapping needs for the respective communities within Carroll County was downloaded 

from MNUSS on November 30, 2005, and is included in appendix B. This information included a summary 

of those communities that had and had not responded to requests for information on MNUSS mapping 

needs, as well as a summary of the map maintenance and flood-data-update needs, as appropriate, for those 

communities where responses had been received. A summary of the response status for each community 

and the general mapping needs are listed in appendix table B-1. Information on the specific community 

mapping needs is provided in table 3.
 11

Table 3. Summary of specific mapping needs in Carroll County, New Hampshire.

[BFE, Base Flood Elevation; FIRMs, Flood Insurance Rate Maps]

Community Need 

identifier

Study 

category Comments

Albany 10568 Riverine 11x17 effective is “grossly” inaccurate and requires a restudy of the Swift River. 

Changes to hydraulic analysis with anticipated BFE increase of greater than 5 ft 

on 1.3 mi study reach of the Swift River.

Hart’s 

Location

29865 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

increase of between 1 and 5 ft on 1.0 mi study reach of Saco River from the confluence of Bemis Brook to the confluence of Nancy Brook. Community has 

requested FIRMs numerous times.

Hart’s 

Location

29866 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

increase of between 1 and 5 ft on 0.25 mi study reach of Sawyer River upstream 

from the Bartlett town line. This area is prone to flooding.

Ossipee 29721 Maintenance Add streets to panels 0005B, 0006B, and 0030B.

Wakefield 29834 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

increase of between 1 and 5 ft on 2.4 mi study of Lovell Lake from outlet to inlet. 

BFE is requested due to development.

Wakefield 29827 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 1.7 mi study reach of Tributary 2 to Belleau Lake 

from the confluence of Belleau Lake to the corporate limit.

Wakefield 29815 Maintenance Add streets to panels 0005A, 0010A, and 0015A.

Wakefield 29825 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 2.3 mi study reach of Belleau Lake Tributary from 

the confluence of Belleau Lake to the corporate limit.

Wakefield 29829 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 2.3 mi study reach of Scribner Brook from 

Route 16 to the confluence with Great East Lake.

Wakefield 29817 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 1.7 mi study reach of Sandy Pond and Tributaries 

from the outlet of Sandy Pond to the tributary headwaters.

Wakefield 29819 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 0.6 mi of Woodman Lake from outlet to inlet. 

New dam configuration on Belleau Lake affects Woodman Lake.

Wakefield 29822 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 1.5 mi of study reach of Pine River Pond Tributary 

from the northern end of Pine River Pond to the corporate limit.

Wakefield 29833 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 3.3 mi of Pine River Pond from outlet to inlet.

Wakefield 29832 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 1.5 mi of study reach of Horn Brook from 

Route 16 to Lovell Lake.

Wakefield 29831 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 3.4 mi of study reach of Copp Brook from Route 

16 to the confluence with Great East Lake.

Wakefield 29816 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

increase of between 1 and 5 ft on 1.5 mi of Horn Pond from outlet to inlet.
 12

As shown in table 3, a total of 13 mapping update needs are listed in MNUSS throughout Carroll 

County. These include six map maintenance needs and seven flood-data-update needs. Not all of the communities in the county responded to the FEMA request for information regarding mapping needs, so the 

actual number of mapping needs may be higher than what is currently reported in MNUSS. Additional information on mapping needs in the communities was established through state and community meetings, as 

discussed in the following sections.

Wolfeboro 29861 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 2.2 mi of study reach on Heath Brook from the 

town line to Pleasant Valley Road, due to development.

Wolfeboro 29859 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 0.89 mi of Front Bay from the southern end of 

Front Bay to the northern extent, due to development.

Wolfeboro 29860 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of between 1 and 5 ft on 0.57 mi of Harvey Brook from Route 109A 

downstream 0.57 mi, due to development. 

Wolfeboro 29856 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on 0.18 mi of Batson Pond due to development.

Wolfeboro 29858 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot on Crescent Lake from the inlet to Lake Wentworth 

due to change in dam and spillway.

Wolfeboro 29863 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot for 4.7 mi study reach on Willey Brook from 3,000 ft 

upstream on Pork Hill Road to Lake Wentworth, due to development.

Wolfeboro 29864 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot for 0.8 mi of Sargents Pond from North Line Road to 

confluence with Hersey Brook, due to development.

Wolfeboro 29857 Maintenance Add streets to panels 0005A, 0010A, 0015A and 0020A.

Wolfeboro 29862 Riverine Changes in hydrologic conditions and hydraulic analysis with anticipated BFE 

decrease of less than 1 foot for 1.3 mi of study reach on Townsend Brook from 

Warren Sands Road to Lake Wentworth, due to development.

Table 3. Summary of specific mapping needs in Carroll County, New Hampshire.—Continued

[BFE, Base Flood Elevation; FIRMs, Flood Insurance Rate Maps]

Community Need 

identifier

Study 

category Comments
13

State and Community Meetings

As part of the scoping effort, the USGS conducted a series of meetings with the following State agencies and communities:

• NHOEM on August 24, 2005, to review LOMCs.

• Conference call kick-off meeting with NHOEM, FEMA, USGS, and Watershed Concepts on 

September 1, 2005.

The following section provides a summary of the key outcomes from each of the State and community 

meetings. Additional detail is given in appendix C, which provides copies of the meeting minutes and an 

example community interview form.

Meeting with New Hampshire Office of Emergency Management (NHOEM) and Scoping Team Members

USGS held a kick-off meeting with a conference call on September 1, 2005, that included representatives from NHOEM, FEMA, USGS, and Watershed Concepts (RMC - Regional Management Center). The 

meeting was used to introduce the scoping project team and review roles and responsibilities. The meeting 

agenda and minutes are included in appendix C. The following people were included in the meeting:

• Dean Savramis, representing FEMA, provided an overview of the Map Modernization Program and 

Scoping. He also provided a description of the countywide approach.

• Brent McCarthy (RMC) described the role of the RMC in assisting FEMA and the mapping contractors. He described the Watershed Information System (WISE) (Watershed Concepts, 2005) 

computer applications developed for FEMA to standardize the scoping process methodology, data 

collection, and storage for the map modernization program. Brent mentioned that it may be a good 

idea to set up a morning and evening meeting with each County in order to be able to talk to all of 

the representatives in each town (two meetings for each county). Brent also mentioned that Watershed Concepts could lead breakout sessions with towns during the meetings with the Counties.

• Jeff Burm (RMC) spoke about the WISE Scoping tool and various features of this tool including 

community contact information, available GIS data, stream data, statistical analysis, stream mile 

information to calculate costs for hydrology and hydraulics, LOMAs, CAVs and Community Assistance Contacts (CACs), creation of reports for each of the items.

• Fay Rubin (UNH GRANIT), Craig Johnston, Laura Hayes and Robert Flynn (USGS)—discussed 

available data and coverages within New Hampshire (for example, 2003 National Agriculture Imagery Program (NAIP) color Digital Orthophoto Quadrangles (DOQs)). Remote sensing, base map 

information, GIS data (for example, contour data, E911 data, Digital Elevation Model (DEMs), 

buildings layer, survey data available from the New Hampshire Department of Transportation 

(NHDOT). In addition, the county regional planning commissions were mentioned as possible 

sources of data.
 14

Carroll County Community Meetings

Conference calls were conducted with representatives from all of the towns in Carroll County. The following sections provide a brief summary of the key findings from each community interview, and in particular, identifying areas with increased development, areas with known flooding problems, and areas with 

changes to hydraulic structures. The applicable community contacts are also provided in each section.

The goals of these meetings were to:

• Inform the communities of the nature and the intent of the flood map update process.

• Solicit community input and discuss the flood-prone areas that communities would like to include 

as a part of the flood map update.

Community comments were captured on paper interview forms, FIRM panels, and on working maps 

of each community produced for this purpose. These comments were entered into the WISE scoping application. Notes from the working maps and FIRM panels are summarized on figure 3. For communities not 

represented at the meetings, information provided by NHOEM, and contained in the community business 

plan was relied upon.

Carroll County:

Albany

The following list provides a summary of the key issues identified during the community interview 

(February 21, 2006):

• No new studies needed. Limited development and mostly National Forest.

• Many road names are incorrect and roads are missing from the FIRM.

Contact: Diane Falcey, Administrative Assistant (603-447-6038)

Bartlett

The following list provides a summary of the key issues identified during the community interview 

(November 21, 2005, February 17, 2006, July 14, 2006, and July 18, 2006):

• Many road names are incorrect and roads are missing from the FIRM.

• On panels 5, 10, and 20, the Saco River needs a detailed restudy from the western corporate limit to 

the southern corporate limit due to filling-in, erosion and meandering of the river which is also experiencing development. In one location, fill was placed in the river in the vicinity of Humphrey’s 

Ledge along West Side Road in the Saco River. In another location (end of Forest Avenue), there is 

a berm that is eroding and threatens flooding of homes in this area along the Saco River.

• On panels 10 and 15, a limited detailed study is needed along the East Branch Saco River from its 

confluence with the Saco River to the upstream corporate limit. At the Woodland Pine and Foxrun 

Condominiums flooding has occurred but is not shown on the flood maps. In the upstream reach of 

the river, the channel has moved. Re-channeling was done in the 1970’s along with other work to 

slow velocities and stabilize banks but, the channel is moving back to its old location.

Contact: Doug Garland, Selectman, Lynn Jones, Administrative Assistant to the Selectmen, 

Brenda Medeiros, Secretary to the Board of Selectmen (603-356-2950)
 15

Brookfield

The following list provides a summary of the key issues identified during the community interview 

(November 21, 2005 and February 17, 2006):

• On panel 7, a detailed study is requested on Churchill Brook from Governor’s Road to confluence 

of Pike Brook due to development and inaccurately defined Zone A boundary (i.e. Sanborn Road 

bridge does not overtop).

• On panel 7, a detailed study is requested on Pike Brook from Route 109 to the downstream corporate 

limit due to development and inaccurately defined Zone A boundary.

Contact: Bob Leonard, Selectman and Pam Fraser, Assessing Clerk (603-522-3688)

Chatham

The following list provides a summary of the key issues identified during the community interview 

(January 5, 2006):

• No new studies needed. There are many new roads that need to be added to the flood maps.

Contact: Wayne McAllister, Chairman of the Board of Selectmen (603-694-3827)

Conway

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006):

• On panel 20, a limited detailed study is needed on the Saco River and Middle River from BFE 470 

(downstream of section AJ) to BFE 484 (upstream of section AM) due to large amounts of erosion 

by the Saco River. In one area, just north of Justamere Road, an approximately 50 ft length of bank 

has eroded. In addition, two New Hampshire State bridges on River Road crossing the Middle and 

Saco Rivers, have been reconstructed by the New Hampshire Department of Transportation and this 

may have changed the flood width in this area. 

• On panel 25, the New Hampshire Department of Transportation plans to reroute Kearsarge Brook 

from section J to section O. This is planned to take place between 2006 and 2014 for the by-pass 

construction. Homes are being removed or will be completely removed by the time construction 

takes place. A detailed study is needed from BFE 505 (Patten Court) to Whitaker Lane.

• On panel 25, the town has seen an increase in potential LOMAs along a 1,000 ft reach of the Eastern 

Slope Terrace (off of Route 16) as a result of development in this area. Remapping of the flood 

boundary along the eastern side of the Saco River between BFE 459 and BFE 460 is needed.

• On panel 30, (high priority) a limited detailed study and remapping are needed for a reach of the 

Saco River between Section B (BFE 415) and the intersection of East Conway Road and Webster 

Road at the downstream corporate limit (BFE 413) as the town states that there is a discrepancy 

between the elevations along this reach in Conway and the elevations in Freyburg, Maine, to the 

east of the panel. The flood plain boundary is shown as being cut off at Route 113 between Sections 

A (BFE 414) and Section B (BFE 415) however, flooding does occur over this road. Development 

is occurring along this road. Development is also occurring along Saco River Road and there is a 

request to develop this area further but clarification needs to be made on the Base Flood Elevations 

due to the discrepancy with the Freyburg, Maine panel. 
16

• On panel 30, (2nd highest priority) remapping is requested along the Saco River from BFE 415 to 

BFE 419 due to questionable accuracy of the flood delineation in this area. 

• On panel 35, remapping is requested along the south side of Pequawket Pond along Pequawket 

Drive from west of “E” Street to “J” Street as the town states that the elevation along the south side 

of Pequawket Drive is lower than the elevation along the north side of Pequawket Drive and the 

flood delineation does not extend to the south side of Pequawket Drive. The Town would like to 

know if the flood boundary really follows the middle of Pequawket Drive or are there areas where 

the elevation is lower than the south side of the road. The town states that property owners are 

having a difficult time determining if they are or are not in the flood plain. The flood boundaries for 

Pequawket Pond were determined in the 2002 Conway, N.H. flood study using a 5-ft contour interval base map which was based on a 1:600 aerial photography that was flown and compiled in 1991.

The 5-ft contour interval data is the best available data.

• On panel 45, remapping is requested for the Saco River along Rebecca Lane up to Saco Pines Road. 

Development is occurring, especially in the area west of Saco Pines Road where the flood plain 

touches East Main Street. 

• On panel 45, a detailed study is requested along Black Cat Brook from Route 302 to the Maine Central Railroad due to development along Essex Road.

Contact: Thomas Irving, Planning Director, (603-447-3855)

Eaton

The following list provides a summary of the key issues identified during the community interview 

(February 21, 2006 and June 15, 2006):

• On panels 2 and 4, a detailed study is requested for Conway Lake due to development along the eastern boundary of the lake and inaccurate boundary for current Zone A.

• On panel 4, a detailed study is needed along Snow Brook from its confluence with Conway Lake to 

its’ second crossing of Potter Road (upstream of Conway Lake, at the panel 3 and 4 boundary) due 

to a new bridge at the Potter Road crossing nearest to Conway Lake (from a culvert to wing-span 

bridge) and inaccurately delineated Zone A.

Contact: David Maudsley, Secretary to the Board of Selectmen (603-447-2840).

Effingham

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006 and July 18, 2006):

• Many road names are incorrect and roads are missing from the FIRM.

• No new studies needed. 

Contact: Claudia Lamphier, Administrative Assistant (603-539-7770)

Freedom

The following list provides a summary of the key issues identified during the community interview 

(February 21, 2006, July 13, 2006, July 18, 2006, and July 25, 2006):

Many road names are incorrect and roads on the FIRM either don’t exist or are missing.
 17

• On panel 10, the Cold Brook does not flood across Moulton Road but, it is shown to do this on the 

flood map. This is located at the intersection of Moulton Road and Cushing Corner Road (named 

Andrew Hill Road on flood map). The Cold River needs to be redelineated in this area.

• On panel 10, the delineation of area to the north of Cold Brook needs to be checked as area is not 

prone to flooding.

• On panel 10, the delineation of the area to the north of Ossipee River (at the confluence of Cold 

Brook) needs to be checked as area is not prone to flooding.

• On panel 10, the flood delineation in Zone A is thought to be incorrect. Between approximately 92 

and 207 Freedom Point Road, flooding occurs to approximately 200 ft to the north from the river 

and then the bank becomes very steep.

• On panels 10 and 15, between Berry and Broad Bay, flooding occurs beyond shoreline (as shown 

on Zone A) to the north. Development is occurring along the northern side of the Ossipee River.

• On panel 15, the area to the north of the confluence of Ossipee Lake and Ossipee River floods several times a year out to the corner of Diprizio Road and Totem Pole Road. The eastern end of this 

designated reach also floods out to Diprizio Road.

Contact: Karen Hatch, Administrative Assistant (603-539-6323)

Jackson

The following list provides a summary of the key issues identified during the community interview 

(November 21, 2005, March 1, 2006, and July 13, 2006):

• On panel 25, in Jackson Village, business expansion has been hindered due to the flood boundaries 

and some question whether the boundaries are correctly delineated (Ellis River, Wildcat Brook and 

two unnamed brooks).

Contact: Tracy Mosston, Administrative Assistant (603-383-4223)

Madison

The following list provides a summary of the key issues identified during the community interview 

(November 21, 2005):

• On panel 1, a detailed study is needed for Davis Pond due to development around pond.

Contact: Bob Babine, Code Official/Building Inspector (603-367-4332)

Moultonborough

The following list provides a summary of the key issues identified during the community interview 

(February 21, 2006 and June 11, 2006):

• The Town Administrator feels that with the exception of the water bodies (lakes, ponds), all of the 

Zone A rivers and streams in the town of Moultonborough are delineated incorrectly as the delineation does not reflect the topography. This is a mountainous community and the town administrator 

feels that the flooding that is depicted for the rivers and streams either does not occur or is inaccurately delineated.
 18

• Better contour data is needed. A base map was created for the town by Cartographic Associates from 

data collected in April of 2004 and perhaps this data can be used to create a better contour map for 

flood plain delineation. 

• There are no specific areas of dense development in the town and the Town Administrator felt that 

he could not prioritize a flood study of one Zone A stream over another.

Contact: Chuck Connell, Town Administrator (603-476-2347)

Ossipee

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006):

• No new studies needed. No issues with the flood maps.

• There are no major subdivisions built in town nor are there any planned.

• Town has a flood plain ordinance in place with elevation limitations. They also follow the State of 

New Hampshire's septic system regulations so no one is allowed to build below 414 ft elevation.

• Future building is a middle school and shopping area but will be complying with flood plain ordinance.

Contact: David Senecal, Building Inspector and Zoning Enforcement Officer (603-539-4181)

Sandwich

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006):

• No new studies needed. No issues with the flood maps.Town Selectmen also looked at flood maps.

Contact: Cathy Crockford, Administrative Assistant (603-284-7701)

Tamworth

The following list provides a summary of the key issues identified during the community interview 

(June 20, 2006):

• On panel 5, a detailed study is needed along the Chocorua River from Chocorua Lake to the northern 

corporate limit due to potential development along Washington Hill Road and Route 16.

• On panel 10, remapping is needed along the Bearcamp River between BFE 438 and BFE 450 as 

there is development potential along the southern side of the river and it is thought that the mapping 

is not accurate in this area. 

• On panel 20, remapping is needed in the location of section X (BFE 576) to section AA (BFE 591) 

where Jackman Pond Road crosses the Bearcamp River as it is thought that the mapping is not correct in this area. 

• On panel 20, a limited detailed study is needed from section O (BFE 510) to section V (BFE 573) 

as the dam (at BFE 545) was removed in 2003.

Contact: John Mersfelder, Tamworth Conservation Commission (603-284-7701)
 19

Tuftonborough

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006):

• No new studies needed. No issues with the flood maps.

Contact: Jackie Rowlands, Tax Collector (603-569-4539)

Wakefield

The following list provides a summary of the key issues identified during the community interview 

(February 17, 2006):

• No new studies needed. No issues with the flood maps.

Contact: Robin Frost, Town Administrator (603-522-6205)

Wolfeboro

The following list provides a summary of the key issues identified during the community interview 

(March 1, 2006):

• On panel 5, flooding does not occur over Governor Wentworth Highway (Route 109) from Lake 

Wentworth.

• On panel 5, flooding does not occur over Suncook Valley Road in either of these two areas.

• On panel 5, the area of flooding along Ryefield Brook (north of Lake Wentworth) is more extensive 

than shown. There is also a new bridge (NHDOT, 2005) over Ryefield Brook along Governor Wentworth Highway (Route 109).

• On panel 10, flooding does not occur over Cotton Valley Road from Ryefield Brook.

• On panel 15, flood extent on Harvey Brook is greater than shown and needs to extend over Beach 

Pond Road (incorrectly spelled as “Beech” on flood map).

• On panels 5 and 15, there are 6 islands in Lake Wentworth that are shown to be in the flood plain 

and they are not in the flood plain.

• On panel 15, there are 5 islands in Lake Winnipesaukee that are shown to be in the flood plain but 

they should not be in the flood plain.

• On panel 15, a new dam was put in at Crescent Lake in 2002 and this may have changed the flood 

boundaries for this lake. Development is occurring all around this lake.

• On panel 15, A new bridge was constructed by NHDOT on Suncook Valley Road over stream connecting Front Bay and Crescent Lake in 2006.

• On panel 15, the town feels that delineation is not accurate for Front Bay based on topography. Also, 

the owner of the dam (located to the east of Front Bay) plans to remove it. There is a new culvert 

constructed under Bay Street in 2005 and the town feels that this will change the flood boundary in 

this location.

Contact: Rob Houseman, Town Planner (603-569-5970)
 20

Available Digital Mapping and Remotely Sensed Data

This section provides an inventory of the digital data available to support the production of DFIRMs 

for the study area. Basic information is provided on the content, lineage, and accuracy of the products.

Data-Collection Efforts

To determine the availability of digitally available data, the USGS contacted Lynn Bjorklund (New 

England Liaison to USGS National Mapping), Fay Rubin (GIS Manager, NH GRANIT, UNH Complex 

Systems Research Center), Lakes Region Planning Commission, the North Country Council Regional Planning Commission (NCCouncil), and the communities themselves. The NH GRANIT has useful base mapping. 

NH GRANIT Data Sources

NH GRANIT is a cooperative project to create, maintain, and make available a statewide geographic 

database serving the information needs of state, regional, and local decision-makers. A collaborative effort 

between the UNH and the NHOEP, the core GRANIT system is housed at the UNH Institute for the Study 

of Earth, Oceans, and Space in Durham.

NH GRANIT maintains data layers (http://www.granit.sr.unh.edu) including features such as roads, 

streams, and political boundaries. Some of the base map data layers maintained by NH GRANIT have been 

derived from USGS data and represent many of the feature types found on USGS topographic maps. More 

recently developed data were derived from digital orthophotos providing improved base map accuracy.

NH GRANIT is presently converting the standard, paper FIRMs and Flood Boundary and Floodway 

maps (FBFMs) to DFIRMs by digitizing existing flood maps from the existing paper flood maps. The 

DFIRMs will depict flood risk information, and include 100- and 500-year flood plain boundaries as well 

as areas of minimal flood risk. NH GRANIT is using USGS 1998 DOQs as the base, and they are incorporating any LOMC that are on file with FEMA.

The Q3 flood-data product is a digital representation of certain features of FEMA’s FIRM product and 

are created by scanning the effective FIRM paper maps and digitizing selected features and lines. The digital 

Q3 flood data contain the following:

1. 1-percent (100-year) and 0.2-percent (500-year) annual chance flood plain boundaries (including 

velocity zones),

2. Flood insurance zone designations,

3. Floodway boundaries (where available),

4. Political boundaries (State, county, and community),

5. Community and map panel identification numbers,

6. FIRM panel neatlines,

7. USGS 7.5-minute (1:24,000 scale) series topographic map neatlines, and

8. Coastal Barrier Resources System areas.
 21

Community Data Resources

The USGS and NH GRANIT do not have digital base mapping data for Carroll County that meet 

FEMA requirements for DFIRM production. Community data requests were limited to topographic data 

suitable for hydraulic modeling (for example, 4-ft contours).

Topographic data are limited to that found on USGS topographic maps with 10 or 20-ft contour intervals. No other community sources of digital elevation data for FEMA flood mapping were located.

Stream Final Coverage Output

The WISE Scoping Tool organizes and stores data and assists in the prioritization of the community 

requests for flood plain studies. As the scoping process is completed, three coverages (maps) are created: 

Effective, Meeting, and Stream Final. 

• Effective Coverage: Q3 flood-hazard data are not available for Carroll County. NH GRANIT has 

a contract with FEMA to digitize the FIRMs and they made these nearly completed DFIRMs available to the USGS for purposes of scoping. The DFIRM data for Carroll County was received from 

NH GRANIT on October 15, 2005, although it had not been Quality Assurance/Quality Control 

checked at that time. Users of the WISE tool should obtain an updated version of the DFIRM data 

when it becomes available in December of 2006. The DFIRM information was entered into the 

WISE scoping tool. The initial Scoping Tool database was set up using the U.S. Environmental 

Protection Agency (USEPA) National Hydrography Dataset (NHD) stream centerline coverage 

(http://nhd.usgs.gov/data.html) and digital flood boundary base mapping data provided by NH 

GRANIT. The NHD stream centerline coverage was used to build the Effective Coverage in the 

Scoping Tool. The digitized flood-hazard data were overlain onto the NHD stream centerline coverage. The Scoping Tool was used to enter each reach of the Effective Coverage one at a time by 

assigning the beginning and end of each reach and the current effective type of study. 

• Meeting Coverage: The Effective Coverage was used to prepare the work maps for recording mapping needs requested by the communities during the Scoping Meetings. These requests were also 

recorded in the Meeting Coverage of the Scoping Tool.

• Stream Final Coverage: The WISE Scoping Tool was used to create a Stream Final Coverage to 

document and highlight community meeting results. Community mapping needs based on community input are summarized in figure 4.
71o15'

71o30'

43o30'

0 5 10 MILES

0 5 10 KILOMETERS

Base from U.S. Geological Survey 

Digital Line Graphs, 1:24,000, 1990-94 and

National Hydrography Dataset, 1:24,000, 1999

Lake 

Winnipesaukee

43°45'

44°

71°

44°15'

Detailed study request

Hydrography

EXPLANATION

Limited detailed study request

Redelineation request

Use of effective information

Jackson

Chatham

Eaton

Conway

Tamworth

Albany

Harts

Location

Madison

Sandwich

Moultonborough

Tuftonboro

Ossipee Effingham

Freedom

Wolfeboro

Brookfield

Wakefield

Bartlett

22

Figure 4. Carroll County, New Hampshire, stream final coverage.
 23

Section 3. Options for Future Mapping and Digital Terrain Model Preparation

Mapping Requirements

This section provides an assessment of the costs and benefits of utilizing the data cataloged in the previous section for the preparation of DFIRMs for Carroll County. Options are presented for using these data 

sets in various combinations and supplementing them with new data sets.

DFIRMs are produced from the following three broad categories of geospatial data: (1) Base Map, 

(2) Digital Terrain Model (DTM), and (3) Flood Insurance Risk Zones. The spatial accuracy of each of these 

three categories is fixed by the specifications contained in the “Guidelines and Specifications for Flood Hazard Mapping Partners,” April 2003 (Federal Emergency Management Agency, 2004).

• Base Maps: Base maps (1998 DOQs) are being acquired from NH GRANIT and will be used by 

FEMA as the background to the flood insurance risk zones shown on the DFIRMs. 

• DTMs: DTMs are used in conjunction with H&H models to interpret the limits of flood insurance 

risk zones. 

• Flood Insurance Risk Zones: Geographic boundaries produced by FEMA.

Base Map

Base maps are defined in the “Guidelines and Specifications” as the “map of the community that depicts 

cultural features (for example, roads, railroad, bridges, dams, and culverts), drainage features, and corporate 

limits.” Depending on the source of the base map, the specific features found on DFIRMs may include the 

following data and features:

• Roads: centerlines, edge-of-pavement, right-of-way, names.

• Railroads: names.

• Bridges: names.

• Flood Control Structures: headwall, dam, levee, names.

• Airport Boundaries: names.

• Rivers: centerlines, banks, names.

• Streams: names.

• Lakes: names.

• Political Boundaries: county, municipality, special districts, wards, military reservations, Native 

American lands, names.

• Land Use: parks, individual land parcels, names.

The “Guidelines and Specifications” specify “absolute horizontal accuracy” for base map features to 

establish horizontal accuracy for the position of the digital data set to its actual location on the earth’s surface. The horizontal accuracy is specified as a statistical error distribution at the 95-percent confidence level 

and is specified in the “Guidelines and Specifications” as a function of finished map scale, as shown in 

table 4:
Table 4. FIRM Horizontal Accuracy.

[FIRM, Flood Insurance Rate Map]

FIRM map scale

Absolute horizontal accuracy at 

the 95-percent confidence level, 

in feet

1 in = 500 ft 19.0

1 in = 1,000 ft 38.0

1 in = 2,000 ft 45.6

 24

Digital Terrain Models

FEMA typically develops DTMs for the production of DFIRMS as they are not widely available at the 

accuracies required by FEMA. The DTMs are used in conjunction with H&H models to interpret flood 

boundaries and can be used by the community for many purposes other than flood management. DTMs represent terrain with irregularly spaced spot elevations (x,y,z) and breaklines that indicate changes in ground 

slope at features such as the toe or top of channel banks or ridge lines. These data sets are generally photogrametrically compiled by a mapping contractor from stereo photos and utilized in the form of a Triangulated Irregular Network (TIN) or a DEM. A DEM uses a regular grid, or raster, spacing of (x,y,z) points to 

represent the land surface. Each grid cell is assigned an average elevation to represent the elevation of the 

ground that is covered by the grid cell. A DEM represents the terrain surface with a mesh of regularly spaced 

points, whereas a TIN uses contiguous triangular planes.

Federal Emergency Management Agency (2004) “Guidelines and Specifications” identify the following four types of DTMs: (1) Digital contours, (2) DEMs, (3) Mass points and breaklines, and (4) TIN. Each 

of these models can be created from the other and their use is application dependent.

Under FEMA guidelines, the allowable DTMs are as follows:

1. Digital contours: continuous, nonintersecting lines of equal elevation separated by a specified elevation interval.

2. DEM: x, y, and z coordinates of regularly spaced points that form a grid.

3. Mass Points and Breaklines: x, y, and z coordinates of irregularly spaced points.

4. TIN: contiguous triangles with x, y, and z values at the vertices and faces with slope and aspect.

The “Guidelines and Specifications” specify what is referred to as “absolute vertical accuracy” for 

DTMs, which relates the elevation of the land surface in the digital data set to its actual elevation relative to 

a specific vertical datum. The National Standard for Spatial Data Accuracy (NSSDA) is specified as a statistical error distribution at the 90- and 95-percent confidence level as a function of the specified contour 

interval as shown in table 5.

Table 5. National Standard for Spatial Data Accuracy.

[NSSDA, National Standard for Spatial Data Accuracy, all values are in feet]

Contour interval NSSDA

90-percent confidence interval

NSSDA

95-percent confidence interval

2 1 1.2 

4 2 2.4 
 25

Contouring and DEMs are not printed on DFIRMS so their vertical accuracy is not labeled on the 

DFIRMS, but it is recorded in the metadata of elevation datasets used for H&H modeling.

Flood Insurance Risk Zones

Flood insurance risk zones are created by FEMA to set insurance rates and manage the flood plain. 

Flood insurance risk zone accuracy requirements are not specified in the Guidelines and Specifications but 

can be described in terms of the combined accuracies of the base map, DTM, and the hydrology and hydraulic simulation models.

Suitability of the Available Data

The following section provides a summary of the suitability of the base map and DTM available for 

Carroll County, N.H., from the appropriate community, county, and state resources.

USGS of GRANIT

The USGS and NH GRANIT can provide digital data base mapping data for Carroll County that meets 

FEMA requirements for DFIRM production. Neither USGS nor NH GRANIT has elevation data suitable 

for hydraulic modeling and communities were contacted to find topographic or elevation data suitable for 

hydraulic modeling (for example, 2-ft or 4-ft contours). 

Community Data Resources

No community sources of digital elevation data for hydraulic modeling or FEMA flood mapping were 

located. 

County Data Resources

Carroll County does not contain suitable data for DFIRM use. Towns in Carroll County are within the 

planning area of the Lakes Region Planning Commission and the North Country Council Regional Planning 

Commission (NCCouncil). Each of the planning commission’s data for DFIRM use was obtained from NH 

GRANIT.

Base Map

NH GRANIT maintains data layers including features such as roads, streams, and political boundaries. 

Base map layers maintained by NH GRANIT include features such as roads, streams, and political boundaries. Base map data layers have been acquired from a variety of sources including the USGS data and represent many of the feature types found on USGS topographic maps. More recently developed data were 

derived from the digital orthophotos providing improved base map accuracy.

There are three base map sources available (table 6). These include the USGS DOQs (1:12,000; 1998, 

1992) and NAIP Aerial Photographs (1:40,000; 2003). Existing coverages maintained by NH GRANIT can 

be linked to or viewed at the following Web site: http://www.granit.sr.unh.edu
Table 6. Currently available high resolution orthophotography for Carroll County.

[USGS, U.S. Geological Survey; DOQQ, Digital Orthophoto Quarter Quad; B&W, Black and White; NAIP, National Agricultural Imagery Program, NH GRANIT, New Hampshire Geographically Referenced Analysis and Information Transfer System]

Item Source Date Resolution Coverage

USGS DOQQ B&W USGS 1998, 1992 1.0 meter pixel Statewide

NAIP 2003 Color NH GRANIT, NAIP 2003 1.0 meter pixel Statewide

 26

USGS Digital Ortho Quarter Quads (DOQQs) are available for all of Carroll County. The DOQQs are 

FEMA’s default standard for the base map. The accuracy and quality of the DOQQs meets National Map 

Accuracy Standards at 1:12,000 scale for 3.75-minute quarter quadrangles, plus or minus 33.33 ft or 10 m. 

For Carroll County, the DOQQ orthophotos are dated 1998 and are 1.0-m resolution.

The NAIP 2003 color orthophotos were created by the Aerial Photography Field Office (APFO) of 

the U.S. Department of Agriculture (USDA) and processed by NH GRANIT to (1) standardize the exterior 

“nodata” values; (2) re-project the data into New Hampshire State Plane Feet (North American Datum of 

1983 (NAD 83)); (3) tile the data to 15-minute quadrangles to facilitate distribution; and (4) re-compress 

the data to MrSID Generation 3 format. The source product is 1-m ground sample distance (GSD) DOQQs 

from the National Digital Ortho Program (NDOP). The imagery may contain as much as 10-percent cloud 

cover per source photograph.

Digital Terrain Model

NH GRANIT has the DEM USGS National Elevation Dataset (NED) available for download. NH 

GRANIT extracted the NED and re-projected the files into NAD 83. The data are based on USGS 7.5 minute 

DEMs (30m x 30m square grids). The DEMs were derived from USGS 1:24000 and 1:25000 quadrangle 

maps.

Flood Insurance Risk Zones

FEMA flood insurance rate 100- and 500-year flood zones are being converted to digital data layers by 

NH GRANIT for each community participating in the NFIP in New Hampshire. These datasets were developed by direct digitization of FIRM maps using data registration techniques that produced the best-fit registration to community boundaries or other suitable features.

Mapping Options

The following section provides a summary of the potential options for developing base maps, DTMs, 

and flood insurance risk zones.

Base Map

Three base map options are presented for consideration:

1. Use existing USGS DOQQs from 1998 and 1992.

2. Use NAIP 2003, 1.0-m resolution color orthophotos.

3. Produce new vector data.

The recommended option for DFIRM production in Carroll County is option #1.
 27

Digital Terrain Model

There are no DTM data available that meet FEMA requirements for Carroll County.

DTM development options include (1) obtaining countywide DTM data that covers all communities 

and (2) obtaining DTM data only for selected flood plain areas as needed to support a detailed study, limited 

detailed study, restudy or re-delineation of flood-hazard areas. 

The estimated costs of obtaining new DTM data is shown in table 7. These costs are based on the information determined by Camp, Dresser, and McKee, Inc. (2004) in their 2005 Scoping Report for Rutland 

County, Vermont. The estimates include the cost of the LiDAR (Light Detection and Ranging) imaging system work and the associated aerial photography work needed to create break line data.

Table 7. Estimate of costs to obtain Digital Terrain Model data (2-ft contours).

Area 

(square miles)

Unit cost 

($ per square mile) Estimated cost

20 5,000 $100,000

50 3,000 $150,000

75 2,250 $168,750

100 2,000 $200,000

934 

 (All of Carroll County)

1,250 $1,167,500

Obtaining DTM data on a countywide basis is expensive. Most of the acquired data would be outside 

of the flood plain and not needed for hydraulic analysis. If FEMA obtains new DTM data for selected areas 

as needed, it would be most cost effective to consolidate areas, where possible, and optimize flights, to 

reduce the unit costs.

Flood Insurance Risk Zones

The response from communities in Carroll County, New Hampshire was mixed regarding the accuracy 

of the flood insurance risk zones as shown on the existing panels. The most common comment by community representatives was that a better base map is needed to allow easier determination of where the risk zone 

boundaries are relative to the existing features such as roads and buildings. 
 28

Section 4. Hydrologic and Hydraulic Restudy Needs and Prioritization

This section summarizes the mapping needs prioritization process and presents the prioritization results 

based on community input as well as data obtained from other sources including MNUSS and LOMCs.

Mapping Needs

Based on community input, mapping needs included comments that no new studies were needed, flood 

plain boundaries are delineated incorrectly, the existing detailed study area needs to be extended, and 

remapping is needed. 

Prioritization Process

DFIRM data are available for Carroll County; however, the DFIRM data received on October 15, 2005, 

and entered into WISE, has not been Quality Assurance/Quality Control checked. 

The data collected from the state and community meetings and MNUSS was entered into the WISE 

scoping tool. The data then were exported out of WISE and put into a spreadsheet to score each stream 

segment based on the relative importance of the following factors:

• Community population density.

• Population change (growth).

• Age of effective flood insurance study.

• Significant areas (as defined by the community).

• Existing or proposed development since the FIS.

• Presence of LOMAs/LOMRs.

• Priority (as assigned by community).

• Ranking of importance within the community (community defined).

The prioritization of the flooding sources was based on a number of factors specific to Carroll County 

and is shown in table 8.
Table 8. Community flooding source prioritization.

[FIS, Flood Insurance Study; LOMCs, Letters of Map Changes]

Community population density

(population per square mile) 1990–2000 percent population growth Year since most recent FIS

Range Value Range Value Range Value

> 1,000 10 > 50 10 < 1980 10

90–999 8 40–49 8 1980–1984 8

80–89 6 30–39 6 1985–1989 6

60–79 4 20–29 4 1990–1994 4

30–59 2 10–19 2 1995–1999 2

10–29 1 5–9 1 2000–2004 1

< 9 0 < 4 0 2005 0

Significant areas 

(as defined by the community)

Existing or proposed development

since FIS Presence of LOMCs

Range Value Range Value Range Value

Yes 5 Yes 5 Yes 5

No 0 No 0 No 0

Community priority Community ranking

Range Value Range Value

High 20 1 10

Medium 10 2 8

Low 0 3 6

> 4 4

 29

Prioritization Results

The sum of the score for the parameters listed in table 8 was used to determine the final score for each 

stream and flooding source. The list of prioritized flooding sources is provided in appendix D.

Non-Participating Communities

The Towns of Chatham, Eaton, and Effingham are not currently in the NFIP, however, these communities were contacted. Representatives of Eaton, N.H., stated that their town has two flooding sources of 

concern.
 30

Section 5. Recommendations and Schedule

This section presents flood-mapping recommendations to meet the mapping needs described in previous sections.

Mapping Recommendations

FEMA’s goal is to develop updated DFIRMs and FISs for Carroll County, New Hampshire. The 

County has an area of approximately 934 mi2

 of which approximately 59 mi2 is water. Carroll County 

encompasses 18 cities and towns.

Mapping Options

Mapping can be categorized based on the level of detail and required study effort to create or update 

flood-hazard zones.

• Baseline–DFIRM only: The most economical method of creating a countywide DFIRM is through 

digitizing flood-hazard information from the effective FIRMs and FISs onto new mapping. This 

baseline option is currently being undertaken by NH GRANIT.

• Redelineation: Detailed topography (2-ft contour interval) is not currently available. The floodhazard information from the effective FIRMs and FISs can be redelineated onto new topography 

and base mapping as it becomes available.

• Limited Detailed Study: Automated tools are used to produce digital information. This assumes 

new field surveys for structures but, no new field surveys for cross-sections are needed and that the 

existing hydraulic model can be used.

• Detailed Study: Can be performed to develop the digital information, including field surveyed 

cross-sections and structures. Since this is the most expensive type of study that FEMA can perform, 

the extent of the detailed study may be limited.

Project Alternatives

Costs can be reduced by cutting back on the level of effort for the H&H analyses and(or) reducing the 

number of DFIRM panels. Alternative H&H options that would help FEMA to reduce costs include reducing the study scope from a detailed study to a limited detail study or redelineation of current flood information only. Reducing the number of DFIRM panels by altering the mix of panel scales would lower the total 

panel count and reduce the estimated DFIRM production cost.

Schedule

The project schedule will vary depending on the final scope of the work. Detailed and Limited Detail 

Restudy and DFIRM production can be completed in 24 months, plus the time required for post preliminary 

processing, which may be completed in about 6 months for a total of 30 months.
 31

Selected References

Camp, Dresser, and McKee, Inc., 2004, Flood insurance study needs in the Blackstone River basin in Providence County, Rhode Island and Worcester County, Massachusetts: Contract No. EME-2003-CO-0340, 

Task Order T001, Task 1, February 2004, variously paged.

Camp, Dresser, and McKee, Inc., 2005, Flood insurance study needs in Rutland County, Vermont: Contract 

No. EME-2003-CO-0340, variously paged.

Federal Emergency Management Agency, 2004, Guidelines and specifications for flood-hazard mapping 

partners, accessed online January 10, 2006, at http://www.fema.gov/plan/prevent/fhm/gs_main.shtm

New Hampshire GRANIT (Geographically Referenced ANalysis and Information Transfer system), 2006, 

accessed online January 12, 2006, at http://www.granit.sr.unh.edu/

University of New Hampshire, 2006, Carsey Institute, accessed online June 29, 2006, at 

http://www.nneindicators.unh.edu/ShowOneRegion.asp?IndicatorID=1&FIPS=33013.

Watershed Concepts, a Division of Hayes, Seay, Mattern and Mattern, Watershed Information System 

(WISE), version 2.0.9, 2005.
 32

Appendix A. Summary of Letters of Map Change (LOMC) 

Data in Carroll County
33

Table A-1. Summary of Letters of Map Change (LOMC) Data in Carroll County.[LOMC, Letters of Map Changes; SFHA, Special Flood Hazard Area. The SFHA is an area that would be inundated by the flood having a 1-percent chance of being equaled 

LOMA, Letter of Map Amendment; LOMR-FW, Letter of Map Revision Floodway; LOMA-OAS, Letter of Map Amendment Out-As-Shown; --, no data]

Community LOMC type Case number Effective date Flooding source Address Property latitude Property longitude Removed from SFHA (1) 

Bartlett, N.H. LOMRFW 02-01-0606A 5/8/2002 Saco River Cobb Farm Road 43.081 -71.312 Structure Bartlett, N.H. LOMA 00-01-0980A 9/29/2000 Ellis River 14 River Bend 44.135 -71.185 Residential structure Bartlett, N.H. LOMAOAS 01-01-0492A 3/7/2001 Rocky Branch -- 44.013 -71.202 Units 1,2, and 3 are outside of the SFHA Bartlett, N.H. LOMADEN 01-01-0658A 6/8/2001 Saco River Routes 302 and 16 44.095 -71.203 Gift shop Bartlett, N.H. LOMA 01-01-1144A 7/17/2001 Ellis River -- 44.136 -71.188 Structure Bartlett, N.H. LOMAOAS 03-01-0218A 11/20/2002 Saco River -- 44.083 -71.235 Building VII is outside of the SFHA Bartlett, N.H. LOMA 03-01-1430A 7/3/2003 Saco River Route 16 44.085 -71.149 Residential structure Bartlett, N.H. LOMAOAS 03-01-1908A 12/22/2003 Ellis River Route 16 44.119 -71.186 Residential structure Bartlett, N.H. LOMA 04-01-0318A 12/15/2003 Saco River West Side Road 44.095 -71.201 Residential structure Conway, N.H. LOMA 05-01-0403A 4/1/2005 Saco River 26 Mallar Lane 44.075 -71.143 Structure Conway, N.H. LOMRFW 05-01-0647A 10/6/2005 Saco River, Foster Brook 3316 White Mountain Highway 44.067 -71.143 Portion of property Conway, N.H. LOMA 02-01-1424A 9/25/2002 Saco River -- 44.061 -71.141 Structure Conway, N.H. LOMADEN 03-01-0092A 12/4/2002 Saco River 1357 West Side Road 44.014 -71.131 Structure Conway, N.H. LOMA 04-01-0316A 12/22/2003 Saco River 210 Echo Acres Road 44.031 -71.128 Residential structure Conway, N.H. LOMRFW 03-01-1988A 10/30/2003 Saco River 237 Robin Wood Road 44.002 -71.065 Residential structure Conway, N.H. LOMRFW 04-01-1064A 4/29/2004 Kearsarge Brook 85 Cranmore Road 44.054 -71.115 Residential structure Conway, N.H. LOMA 05-01-0336A 6/16/2005 Saco River 20 B Street 44.049 -71.121 Structure Conway, N.H. LOMA 04-01-0700A 4/29/2004 Pequawket Pond 422 Pequawket Drive 43.969 -71.131 Portion of property Conway, N.H. LOMA 03-01-0214A 12/6/2002 Saco River 230 Odell Hill Road 43.986 -71.091 Structure Conway, N.H. LOMA 03-01-0288A 12/6/2002 Saco River 82 Washington Street 43.981 -71.118 Structure Conway, N.H. LOMA 03-01-0344A 12/26/2002 Saco River 92 Washington Street 43.981 -71.118 Structure Conway, N.H. LOMA 03-01-0578A 2/3/2003 Swift River and Saco 

River

148 Washington Street 43.983 -71.118 Unit 1 
34

Conway, N.H. LOMRFW 03-01-0978A 5/1/2003 Saco River 27 East Side Road 43.983 -71.117 Structure Conway, N.H. LOMA 03-01-1182A 6/2/2003 Saco River Tax Map 265, Lot 123 43.985 -71.114 Portion of property Conway, N.H. LOMA 03-01-1912A 9/11/2003 Saco River 100 East Side Road 43.984 -71.116 Barn structure Conway, N.H. LOMA 03-01-1934A 9/18/2003 Saco River 18 Bryant Drive 43.989 -71.089 Residential structure Conway, N.H. LOMRFW 04-01-0262A 2/2/2004 Saco River 66 East Side Road 43.983 -71.115 Residential structure Conway, N.H. LOMAOAS 04-01-0672A 2/26/2004 Swift River and Saco River 384 West Side Road 43.988 -71.124 Property Effingham, N.H. LOMA 00-01-0660A 6/30/2000 Province Lake 224 Bonnyman Road 43.679 -71.989 Structure Freedom, N.H. LOMA 03-01-0752A 3/24/2003 Ossipee River Route 153 43.798 -71.059 Portion of property Freedom, N.H. LOMA 03-01-1456A 8/4/2003 Ossipee River 88 Freedom Point Road 43.799 -70.037 Residential structure Freedom, N.H. LOMA 04-01-1364A 8/5/2004 Ossipee River 84 Freedom Point Road 43.8 -71.043 Structure Freedom, N.H. LOMAF-DEN 05-01-0884A 9/8/2005 Ossipee Lake 437 Pequawket Trail 43.79 -71.109 Structure (residence) Jackson, N.H. LOMAOAS 99-01-1078A 8/19/1999 Wildcat River State Route 16B 44.14856 -71.18279 Structure Jackson, N.H. LOMA 03-01-0618A 2/24/2003 Ellis River Route 16 44.146 -71.191 Ellis River House Jackson, N.H. LOMA 04-01-0742A 3/8/2004 Ellis River 153 Route 16 44.145 -71.189 Structure Moultonborough, N.H. LOMA 02-01-0620A 7/31/2002 Halfway Brook Whitehouse Farm Lane 43.751 -71.384 Portion of property Moultonborough, N.H. LOMA 03-01-0818A 4/17/2003 Halfway Brook Whitehouse Farm Lane 43.754 -71.373 Portion of property Moultonborough, N.H. LOMA 02-01-0334A 1/11/2002 Lake Winnipesaukee 44 Knoll Point Road 43.711 -71.445 Garage Ossipee, N.H. LOMA 01-01-0486A 3/28/2001 Bearcamp River NH Routes 16/25 43.792 -71.176 Restaurant, residential structure, two garages, manufactured home, store, storage 

building, commercial structure.

Ossipee, N.H. LOMA 03-01-1014A 4/28/2003 Bearcamp River 1915 Route 16 43.792 -71.178 Residential structure Ossipee, N.H. LOMA 03-01-1604A 10/30/2003 Dan Hole River 10 Paddy Acre Road 43.753 -71.169 Portion of property 

Table A-1. Summary of Letters of Map Change (LOMC) Data in Carroll County.—Continued[LOMC, Letters of Map Changes; SFHA, Special Flood Hazard Area. The SFHA is an area that would be inundated by the flood having a 1-percent chance of being equaled 

LOMA, Letter of Map Amendment; LOMR-FW, Letter of Map Revision Floodway; LOMA-OAS, Letter of Map Amendment Out-As-Shown; --, no data]

Community LOMC type Case number Effective date Flooding source Address Property latitude Property longitude Removed from SFHA (1) 
35

Ossipee, N.H. LOMRF-DEN 00-01-1138A 12/12/2000 Ossipee Lake 2 Weetamoe Road 43.775 -71.153 Residential structure Ossipee, N.H. LOMA 04-01-1518A 10/28/2004 Ossipee Lake 32 Ossipee Lake Drive 43.773 -71.153 Residential structure Ossipee, N.H. LOMA 03-01-0212A 11/15/2002 Broad Bay 107 Pequawket Trail 43.788 -71.108 Structure Ossipee, N.H. LOMA 04-01-0926A 4/5/2004 Broad Bay 8 Cassie Cove Road 43.786 -71.107 Residential structure Ossipee, N.H. LOMA 05-01-0435A 5/26/2005 Pine River 540 Route 16 43.682 -71.085 Portion of property Tamworth, N.H. LOMA 03-01-1896A 9/18/2003 Chocorua River 1853 Chocorua Mountain Highway 43.922 -71.226 Residential structure Tamworth, N.H. LOMA 02-01-1750A 3/20/2002 Cocorua River 97 Chocorua Mountain 

Highway

43.881 -71.224 Structure 

Tamworth, N.H. LOMA 04-01-0016A 11/6/2003 Swift River 38 Main Street 43.861 -71.264 Residential structure Tamworth, N.H. LOMA 05-01-0034A 11/23/2004 Moores Pond 36 Bay Circle 43.856 -71.202 Structure Tuftonboro, N.H. LOMAOAS 99-01-524A 3/19/1999 Twenty Mile Bay 314 Governor Wentworth Highway (Route 109) 43.665 -71.287 Structure Tuftonboro, N.H. LOMAOAS 03-01-0404A 1/21/2003 Twenty Mile Brook 180 Middle Road 43.659 -71.252 Property Wakefield, N.H. LOMA 00-01-0816A 10/17/2000 Woodman Lake 3095 Province Lake 

Road

43.635 -71.983 Structure 

Wakefield, N.H. LOMA 00-01-1016A 9/12/2000 Belleau Lake Beverly Hills Drive 43.65 -71.997 Structure Wakefield, N.H. LOMA 00-01-1034A 9/21/2000 Belleau Lake 80 North Dorr Way 43.659 -70.993 Structure Wakefield, N.H. LOMA 01-01-0070A 11/14/2000 Woodman Lake Mill Pond Road 43.634 -70.981 Structure Wakefield, N.H. LOMA 01-01-1094A 8/17/2001 Belleau Lake 146 Gold Coast Drive 43.653 -70.997 Residential structure Wakefield, N.H. LOMA 01-01-1244A 8/17/2001 Belleau Lake 137 Lexington Drive 43.647 -70.992 Residential structure Wakefield, N.H. LOMA 02-01-0290A 12/14/2001 Belleau Lake North Desmond Drive 43.661 -71.001 Residential structure Wakefield, N.H. LOMA 02-01-0296A 1/4/2002 Belleau Lake 35 Moose Point Road 43.658 -71.001 Residential structure Wakefield, N.H. LOMA 02-01-0430A 2/22/2002 Sandy Pond Sandy Pond North 43.632 -70.985 Structure Wakefield, N.H. LOMA 02-01-0432A 1/11/2002 Dorr Pond 214 Fisher Road 43.645 -70.991 Structure Wakefield, N.H. LOMA 02-01-0466A 1/11/2002 Belleau Lake 521 Beverly Hills Drive 43.651 -70.994 Structure Wakefield, N.H. LOMA 02-01-0494A 1/18/2002 Belleau Lake 549 Beverly Hills Drive 43.649 -70.994 Structure Wakefield, N.H. LOMA 02-01-0510A 1/25/2002 Dorr Pond 150 Fisher Road 43.644 -70.991 Structure Wakefield, N.H. LOMA 02-01-0512A 4/3/2002 Dorr Pond 423 Belleau Blvd. 43.648 -70.991 Structure 

Table A-1. Summary of Letters of Map Change (LOMC) Data in Carroll County.—Continued[LOMC, Letters of Map Changes; SFHA, Special Flood Hazard Area. The SFHA is an area that would be inundated by the flood having a 1-percent chance of being equaled 

LOMA, Letter of Map Amendment; LOMR-FW, Letter of Map Revision Floodway; LOMA-OAS, Letter of Map Amendment Out-As-Shown; --, no data]

Community LOMC type Case number Effective date Flooding source Address Property latitude Property longitude Removed from SFHA (1) 
36

Wakefield, N.H. LOMA 02-01-0526A 2/22/2002 Dorr Pond 536 Beverly Hills Drive 43.649 -70.995 Structure Wakefield, N.H. LOMA 02-01-0532A 1/25/2002 Belleau Lake 120 North Dorr Way 43.662 -70.996 Residential structure Wakefield, N.H. LOMA 02-01-0536A 1/25/2002 Belleau Lake 32 Narrows Point Road 43.646 -70.991 Residential structure Wakefield, N.H. LOMA 02-01-0634A 2/13/2002 Belleau Lake 554 Beverly Hills Drive 43.649 -70.995 Structure Wakefield, N.H. LOMA 99-01-1142A 4/12/2000 Belleau Lake 25 Pennsylvania Avenue 43.662 -70.996 Residential structure Wakefield, N.H. LOMA 03-01-0794A 3/17/2003 Belleau Lake 252 Gold Coast Drive 43.655 -71.001 Residential structure Wakefield, N.H. LOMA 04-01-1348A 8/5/2004 Belleau Lake 247 Belleau Blvd. 43.644 -70.986 Property Wakefield, N.H. LOMA 04-01-1654A 10/14/2004 Stump (Balch) Pond 92 Balch Hill Road 43.629 -70.981 Structure Wakefield, N.H. LOMA 05-01-0068A 3/4/2005 Tributary to Belleau 

Lake

41 Don Whittum Drive 43.654 -71.004 Structure 

Wakefield, N.H. LOMA 05-01-0406A 3/11/2005 Sandy Pond 8 Eliot Drive 43.63 -70.983 Structure Wakefield, N.H. LOMA 99-01-672A 4/21/1999 Stump (Balch) Pond 6 Hemlock Drive 43.6186 -70.9858 Residential structure Wakefield, N.H. LOMA 04-01-1620A 10/12/2004 Stump (Balch) Pond 350 Concord Lane 43.621 -70.982 Structure Wolfeboro, N.H. LOMADEN 00-01-0136A 1/5/2000 Front Bay/Lake Winnipesaukee 36 Center Street 43.5873 -71.2070 Structure Wolfeboro, N.H. LOMA 00-01-1082A 9/21/2000 Lake Winnipesaukee -- 43.561 -71.209 Residential structure Wolfeboro, N.H. LOMA 99-01-1066A 8/18/1999 Lake Winnipesaukee 20 Melody Island 43.561 -71.209 Residential structure Wolfeboro, N.H. LOMRF 03-01-0230A 12/11/2002 Front Bay/Lake Winnipesaukee 36 Center Street 43.586 -71.206 Commercial structure Wolfeboro, N.H. LOMA 05-01-0316A 3/11/2005 Front Bay 10 King Street 43.589 -71.215 Residential structure Wolfeboro, N.H. LOMA 05-01-0547A 6/30/2005 Lake Wentworth 149 Warren Sands Road 43.579 -71.127 Structure 

Table A-1. Summary of Letters of Map Change (LOMC) Data in Carroll County.—Continued[LOMC, Letters of Map Changes; SFHA, Special Flood Hazard Area. The SFHA is an area that would be inundated by the flood having a 1-percent chance of being equaled 

LOMA, Letter of Map Amendment; LOMR-FW, Letter of Map Revision Floodway; LOMA-OAS, Letter of Map Amendment Out-As-Shown; --, no data]

Community LOMC type Case number Effective date Flooding source Address Property latitude Property longitude Removed from SFHA (1) 
37

Appendix B. Mapping Needs Update Support System 

(MNUSS) Needs Assessment Reports

Carroll County, New Hampshire

MNUSS Needs Assessment Reports Summary Table

New Hampshire Mapping Needs in MNUSS

November 30, 2005
Table B-1. Mapping Needs Update Support System (MNUSS) needs assessment reports summary.

CID Community name Flood data update Map maintenance Pending Resolved

330174 Albany 1 0 0 0

330010 Bartlett 0 0 0 0

330179 Brookfield 0 0 0 0

330181 Chatham 0 0 0 1

330011 Conway 0 0 0 0

330204 Eaton 0 0 0 0

330012 Effingham 0 0 0 0

330013 Freedom 0 0 0 0

330213 Hart’s Location 2 0 0 0

330014 Jackson 0 0 0 0

330220 Madison 0 0 0 0

330015 Moultonborough 0 0 0 0

330016 Ossipee 0 1 0 0

330017 Sandwich 0 0 0 0

330018 Tamworth 0 0 0 0

330234 Tuftonboro 0 0 0 0

330019 Wakefield 11 1 0 0

330239 Wolfeboro 8 1 0 0

Totals 22 3 0 0

38
39

Appendix C. State and Community Meetings
GENERAL COMMUNITY INFORMATION 

Community: ALBANY, TOWN OF CID: 330174 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000010568 Entered By: Chuck Wood 

Source: FEMA Future File Date: 06/08/1999 

 Approved By: FEMA 

 Date: 6/8/1999 

Study Category: RIVERINE Need Types: Changes to hydraulic analysis 

Flooding Source: SWIFT RIVER 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Increased By Greater Than 5 feet 

Length of Study: 1.3 miles 

Average Width of Floodplain: 2500 feet 

Location of Floodplain: 

PANELS AFFECTED BY THE NEED 

No panels have been associated with this need. 

ORIGIN OF NEED INFORMATION 

Entity: D&D FUTURE FILE Phone: 333333333344444 Ext: Unspecified

Last Name: Unspecified First Name: Unspecified

Address 1: Unspecified Title: Unspecified

Address 2: Unspecified Email: Unspecified

City: Unspecified Fax: 888888888899999 

State: Unspecified Zip: Unspecified

NEED NOTES AND COMMENTS 

Date Entered 

By Note

06/08/1999 Chuck 

Wood 

11x17 EFFECTIVE IS 'GROSSLY' INACCURATE, 

REQUIRES RESTUDY OF SWIFT RIVER. NOTE: THIS 

STUDY WILL BE FORMATTED TO A Z-FOLD.

06/08/1999 Chuck 

Wood 

11x17 EFFECTIVE IS 'GROSSLY' INACCURATE, 

REQUIRES RESTUDY OF SWIFT RIVER. NOTE: THIS 

STUDY WILL BE FORMATTED TO A Z-FOLD.

 40
GENERAL COMMUNITY INFORMATION 

Community: HART'S LOCATION, TOWN OF CID: 330213 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029865 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: Saco River 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE 

Change: Increased By Between 1 and 5 feet 

Length of Study: 1 miles 

Average Width of 

Floodplain: 500 feet 

Location of 

Floodplain: 

from confluence of Bemis Brook to confluence of Nancy Brook 

PANELS AFFECTED BY THE NEED 

No panels have been associated with this need. 

ORIGIN OF NEED INFORMATION 

Entity: HART'S LOCATION Phone: (603) 374-1999 Ext: - 

Last Name: KING First Name: BILL 

Address 1: TOWN OF HART'S LOCATION Title: FORMER SELECTMAN 

Address 2: P.O. BOX 512 Email: - 

City: HART'S LOCATION Fax: (603) 374-6168 

State: NH Zip: 03810 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/05/2002 Kara 

Deutsch 

Saco River flooded and closed Notch Road for 3-4 weeks 

in 1997. Community has requested FIRMs numerous 

times.

 41
GENERAL COMMUNITY INFORMATION 

Community: HART'S LOCATION, TOWN OF CID: 330213 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029866 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: SAWYER RIVER 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Increased By Between 1 and 5 feet 

Length of Study: 0.25 miles 

Average Width of 

Floodplain: 500 feet 

Location of Floodplain: from Barlett town line 0.25 miles into Hart's Location. 

PANELS AFFECTED BY THE NEED 

No panels have been associated with this need. 

ORIGIN OF NEED INFORMATION 

Entity: HART'S LOCATION Phone: (603) 374-1999 Ext: - 

Last Name: KING First Name: BILL 

Address 1: TOWN OF HART'S LOCATION Title: FORMER SELECTMAN 

Address 2: P.O. BOX 512 Email: - 

City: HART'S LOCATION Fax: (603) 374-6168 

State: NH Zip: 03810 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/05/2002 Kara 

Deutsch 

Majority of town's houses are near Sawyer River, which 

neighbors the Town of Bartlett. Area is prone to flooding. 

Town of Hart's Location requests to be mapped.

 42
GENERAL COMMUNITY INFORMATION 

Community: OSSIPEE, TOWN OF CID: 330016 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029721 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/03/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: MAINTENANCE Need Types: Add streets to panel 

Status: Existing 

PANELS AFFECTED BY THE NEED 

3300160005B (06/17/1991) 3300160006B (06/17/1991) 

3300160030B (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: TOWN OF OSSIPEE Phone: (603) 539-4181 Ext: Unspecified

Last Name: O'DONNELL First Name: BUD 

Address 1: Unspecified Title: ZONING ENFORCEMENT OFFICER 

Address 2: Unspecified Email: Unspecified

City: Unspecified Fax: Unspecified

State: Unspecified Zip: Unspecified

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 43
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029815 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: MAINTENANCE Need Types: Add streets to panel 

Add an ERM 

Status: Existing 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 3300190010A (06/17/1991) 

3300190015A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/04/2002 Kara Deutsch E911 roads data is available. Town has GIS.

 44
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029817 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: SANDY POND AND TRIBS 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.7 miles 

Average Width of Floodplain: 600 feet 

Location of Floodplain: outlet of Sandy Pond to tributary headwaters 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/04/2002 Kara Deutsch Currently Zone A.

 45
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029819 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: WOODMAN LAKE 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 0.6 miles 

Average Width of Floodplain: 700 feet 

Location of Floodplain: inlet to outlet 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/04/2002 Kara 

Deutsch 

New dam configuration on Belleau Lake affects 

Woodman Lake (currently Zone A).

 46
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029822 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: PINE RIVER POND TRIBUTARY 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.5 miles 

Average Width of Floodplain: 800 feet 

Location of Floodplain: northern end of Pine River Pond to corporate limit. 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 47
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029825 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: BELLEAU LAKE TRIBUTARY 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 2.3 miles 

Average Width of Floodplain: 800 feet 

Location of Floodplain: from confluence of Belleau Lake to corporate limit. 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 48
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029827 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: TRIBUTARY 2 TO BELLEAU LAKE 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.7 miles 

Average Width of Floodplain: 700 feet 

Location of Floodplain: confluence with Belleau Lake to corporate limit. 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/04/2002 Kara 

Deutsch 

Trib 2 crosses Leightons Corner Rd. and Pick Pocket 

Rd.

 49
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029829 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: SCRIBNER BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 2.3 miles 

Average Width of Floodplain: 600 feet 

Location of Floodplain: Rt. 16 to confluence with Great East Lake. 

PANELS AFFECTED BY THE NEED 

3300190010A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 50
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029831 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: COPP BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 3.4 miles 

Average Width of Floodplain: 1800 feet 

Location of Floodplain: Rt. 16 to confluence with Great East Lake. 

PANELS AFFECTED BY THE NEED 

3300190010A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 51
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029832 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: HORN BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.5 miles 

Average Width of Floodplain: 700 feet 

Location of Floodplain: from Rt. 16 to Lovell Lake. 

PANELS AFFECTED BY THE NEED 

3300190010A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 52
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029833 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Changes to BFEs 

Flooding Source: PINE RIVER POND 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 3.3 miles 

Average Width of Floodplain: 2000 feet 

Location of Floodplain: inlet to outlet 

PANELS AFFECTED BY THE NEED 

3300190005A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/04/2002 Kara Deutsch Currently unstudied - community requests BFE.

 53
GENERAL COMMUNITY INFORMATION 

Community: WAKEFIELD, TOWN OF CID: 330019 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029834 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/04/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: LOVELL LAKE 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Increased By Between 1 and 5 feet 

Length of Study: 2.4 miles 

Average Width of Floodplain: 2000 feet 

Location of Floodplain: inlet to outlet 

PANELS AFFECTED BY THE NEED 

3300190010A (06/17/1991) 

ORIGIN OF NEED INFORMATION 

Entity: WAKEFIELD CODE ENFORCEMENT 

DEPARTMENT Phone: (603) 522-6205 Ext: 308 

Last 

Name: PAUL First Name: KEN 

Address 1: TOWN OF WAKEFIELD Title: CODE ENFORCEMENT 

OFFICER 

Address 2: 2 HIGH STREET Email: - 

City: WAKEFIELD Fax: (603) 522-6794 

State: NH Zip: 03872 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/04/2002 Kara 

Deutsch 

Currently unstudied - community requests BFE due to 

development near Lake.

 54
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029856 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Changes to floodplain width 

Flooding Source: BATSON POND 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 0.18 miles 

Average Width of Floodplain: 1000 feet 

Location of Floodplain: 

PANELS AFFECTED BY THE NEED 

3302390005A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/05/2002 Kara Deutsch Community requests BFE due to development.

 55
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029857 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: MAINTENANCE Need Types: Add streets to panel 

Status: Existing 

PANELS AFFECTED BY THE NEED 

3302390005A (05/17/1989) 3302390010A (05/17/1989) 

3302390015A (05/17/1989) 3302390020A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

There are no notes for this need. 

 56
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029858 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Changes to floodplain width 

Changes to BFEs 

Flooding Source: CRESCENT LAKE 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.3 miles 

Average Width of Floodplain: 1000 feet 

Location of Floodplain: Crescent Lake inlet to Lake Wentworth 

PANELS AFFECTED BY THE NEED 

3302390015A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/05/2002 Kara 

Deutsch 

Bridge replaced at Whitlen Neck Road. Dam on Crescent 

Lake rebuilt, changing spillway feeding Smith River.

 57
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029859 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Changes to floodplain width 

Flooding Source: FRONT BAY 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Increased By Less Than 1 foot 

Length of Study: 0.89 miles 

Average Width of Floodplain: 500 feet 

Location of Floodplain: southern end of Front Bay to northern extent. 

PANELS AFFECTED BY THE NEED 

3302390015A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/05/2002 Kara Deutsch Development in this area that is currently Zone A.

 58
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029860 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Changes to floodplain width 

Flooding Source: HARVEY BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Between 1 and 5 feet 

Length of Study: 0.57 miles 

Average Width of Floodplain: 600 feet 

Location of Floodplain: from Rt 109A downstream 0.57 miles. 

PANELS AFFECTED BY THE NEED 

3302390015A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/05/2002 Kara 

Deutsch 

Area is Zone A and is developing, however, there is a 

steep topography where the floodplain may currently be 

too wide.

 59
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029861 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: HEATH BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 2.2 miles 

Average Width of Floodplain: 500 feet 

Location of Floodplain: town line to Pleasant Valley Road. 

PANELS AFFECTED BY THE NEED 

3302390015A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/05/2002 Kara 

Deutsch 

Development along New Garden Rd. and Heath Brook 

(currently Zone A).

 60
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029862 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: TOWNSEND BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 1.3 miles 

Average Width of Floodplain: 500 feet 

Location of Floodplain: Warren Sands Road to Lake Wentworth. 

PANELS AFFECTED BY THE NEED 

3302390020A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/05/2002 Kara 

Deutsch 

Development along Warren Sands Road and Townsend 

Brook (Zone A).

 61
62

GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029863 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: WILLEY BROOK 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated 

BFE 

Change: 

Decreased By Less Than 1 foot 

Length of 

Study: 4.7 miles 

Average 

Width of 

Floodplain: 

500 feet 

Location of 

Floodplain: 

beginning 3,000 ft upstream of Pork Hill Road and ending at Lake 

Wentworth. 

PANELS AFFECTED BY THE NEED 

3302390005A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered 

By Note

12/05/2002 Kara 

Deutsch 

Bridge rebuilt on College Road. Development pressure 

near Willey Brook, which has pockets designated as Zone 

A, but mostly appears unstudied. See FIRMette for part of 

Willey Brook in Related Files for this community.
GENERAL COMMUNITY INFORMATION 

Community: WOLFEBORO, TOWN OF CID: 330239 

County: CARROLL COUNTY State: New Hampshire 

NEED DETAIL INFORMATION 

Need ID: 100000000029864 Entered By: Kara Deutsch 

Source: State Implementation Plan Date: 12/05/2002 

 Approved By: Automatic (no FEMA validation) 

 Date: 2/3/2003 

Study Category: RIVERINE Need Types: Changes to hydrologic conditions 

Changes to hydraulic analysis 

Flooding Source: SARGENTS POND 

Status: Existing 

NEED FLOODPLAIN DATA 

Anticipated BFE Change: Decreased By Less Than 1 foot 

Length of Study: 0.8 miles 

Average Width of Floodplain: 2750 feet 

Location of Floodplain: North Line Road to confluence with Hersey Brook. 

PANELS AFFECTED BY THE NEED 

3302390005A (05/17/1989) 3302390020A (05/17/1989) 

ORIGIN OF NEED INFORMATION 

Entity: WOLFEBORO PLANNING DEPARTMENT Phone: (603) 569-5970 Ext: - 

Last Name: HOUSEMAN First Name: ROB 

Address 1: TOWN OF WOLFEBORO Title: PLANNER 

Address 2: P.O. BOX 629 Email: wolftwnplnr@metrocast.net 

City: WOLFEBORO Fax: (603) 569-8167 

State: NH Zip: 03894 

NEED NOTES AND COMMENTS 

Date Entered By Note

12/05/2002 Kara 

Deutsch 

Community requests BFE for Sargents Pond due to 

development pressure.

 63
 64

FEMA Map Modernization Program

Carroll County Scoping

Scoping Meeting Conference Call

Meeting Minutes

September 1, 2005

U.S. Geological Survey (USGS) held a kick-off meeting via conference call on September 1, 2005, with 

representatives from New Hampshire Office of Emergency Management (NHOEM), Federal Emergency 

Management Agency (FEMA), USGS, and Watershed Concepts (RMC - Regional Management Center) to 

introduce the scoping project team and review roles and responsibilities. 

As one of the scoping study process requirements, this conference call was held to review the USGS 

role in the scoping project process in four counties in New Hampshire (Carroll, Coos, Belknap, and Carroll 

Counties) as well as to detail the data requirements of USGS in order to determine restudy needs and prioritization of restudies in these four counties. 

Attendance:

• Dean Savramis, FEMA Map Modernization Coordinator

• Brent McCarthy and Jeff Burm, Watershed Concepts (RMC)

• Fay Rubin, GIS Manager at Complex Systems Research Center, University of New Hampshire

• Robert Flynn, Craig Johnston, and Laura Hayes, USGS

• Joanne Cassulo and Jennifer DeLong, Map Modernization Coordinators, NHOEM

Minutes:

1. Dean Savramis (FEMA)—Provided an overview of the Map Modernization Program and Scoping. 

He also provided a description of the countywide approach.

2. Brent McCarthy (Watershed Concepts)—Describe the role of the RMC in assisting FEMA and the 

mapping contractors. Description of the WISE computer applications developed for FEMA to 

standardize the scoping process methodology, data collection, and storage for the map modernization 

program. Description of the DFIRM Production tool.

3. Joanne Cassulo and Jennifer DeLong (NHOEM)—Spoke about CAVs to collect information. 

NHOEM is providing copies of LOMAs. Joanne mentioned that the regional planning commissions 

have a lot of data available and can provide community contacts.
65

4. Jeff Burm (Watershed Concepts)—mentioned that FEMA’s Community Information System (CIS) 

has CAVs and CACs and access can be gotten from Mike Goetz at FEMA. He also spoke about the 

WISE scoping tool and various features of this tool including community contact information, 

available GIS data, stream data, statistical analysis, stream mile information to calculate costs for 

hydrology and hydraulics, LOMAs, CAVs and CACs, creation of reports for each of the items.

5. Fay Rubin (GRANIT, UNH Complex Systems)—Fay spoke about the Map Modernization work that 

is being done at FEMA and that she is using DOQs in her map modernization work. Fay mentioned 

that the Carroll County digitization is complete, that the Belknap and Carroll County digitization will 

be complete by December and that the Coos County digitization will be complete next year (due by 

December of 2006). She stated that NHDOT is in the process of updating DOQs ion southeastern 

New Hampshire and that they are looking for a vendor to process the data. She mentioned that the 

2003 NAIP color DOQs may not meet FEMA specifications. She has the NAIP DOQs in New 

Hampshire State Plane coordinates (our NAIP DOQs are in UTM projection). 

6. Fay Rubin, Craig Johnston, Laura Hayes and Rob Flynn (GRANIT; USGS)—discussed available data 

and coverages within New Hampshire (for example, 2003 NAIP color DOQs). Remote sensing, base 

map information, GIS data (for example, contour data, E911 data, DEMs, buildings layer, survey 

data available from NHDOT). County Regional Planning Commissions may also have data.

7. USGS and NHOEM—Discuss follow-up meetings with communities to discuss prioritization. 

USGS will need to coordinate with NHOEM and Watershed Concepts to obtain mailing lists for 

communities and set a date to meet with representatives from each of the towns in each of the 

counties. Brent McCarthy mentioned that it may be a good idea to set up a morning and evening 

meeting with each county in order to be able to talk to all of the representatives in each town 

(two meetings for each county). Brent McCarthy also mentioned that Watershed Concepts could lead 

breakout sessions with towns during the meetings with the counties.
 66

Carroll County Interview Form

FEMA Map Modernization Program

________________________________________________________________________

Date: _________________________ Effective FIS/FIRM Date:______________________

Community:____________________ Form of Government:__________________________

CID#:_________________________ If Town Government, 

 Date of Annual Town Meeting:__________________

Community Representative:

Name:______________________________________________________________________

Title:________________________________________________________________________

Telephone #:___________________________Email:__________________________________

Fax:________________________________________________________________________

Other Appropriate Community Contacts:_________________________________________

1. Known problems with current FIRMs and FISs for the community (general details on next 

pages).

a. Base Map Issues (note FIRM panel numbers): (for example, poor/mixed map scales, panels 

not printed, change in corporate boundaries, etc.)

______________________________________________________________________________

______________________________________________________________________________

b. Flood plain Issues (note FIRM panel numbers): (for example, need flood elevations, disagree with flood plain boundaries, flood elevations too high/low, comments from MNUSS 

or best available data)

______________________________________________________________________________

______________________________________________________________________________

2. Areas of approximate study (for example, Zone A’s) where detailed re-studies should be 

considered:

______________________________________________________________________________

______________________________________________________________________________
 67

3. Areas not mapped/no flood plain where approximate or detailed studies should be considered:

______________________________________________________________________________

______________________________________________________________________________

4. Changes to structures within the town that may affect river hydraulics (for example, reconstruction or removal of dams, changes to bridges and culverts, etc.):

______________________________________________________________________________

______________________________________________________________________________

5. Areas of increased/proposed development within the flood plain since the effective FIS:

______________________________________________________________________________

______________________________________________________________________________

1. Availability of mapping at the town level:

a. Aerial Photography (flight date, scale, color/black and white): 

_________________________________________________________________________

_________________________________________________________________________

b. Topography (contour interval): 

_________________________________________________________________________

_________________________________________________________________________

c. Other: 

_________________________________________________________________________

_________________________________________________________________________

2. Future community data acquisition plans/wants/needs: 

_________________________________________________________________________

_________________________________________________________________________

3. Information on GIS programs in-place or GIS plans that may benefit from a new FIRM:

____________________________________________________________________

4. Other comments:

_________________________________________________________________________

_________________________________________________________________________

5. Action Items:

________________________________________________________________________

_________________________________________________________________________

 Additional Notes:

_________________________________________________________________________

_________________________________________________________________________
 68

Appendix D. Prioritized Flooding Sources
69

Appendix D. Prioritized flooding sources in Carroll County.[CID, Community Identification; FIS, Flood Insurance Studies; LOMC, Letter of Map Change]

Community CID Reach_ID Description

Current 

analysis 

effective 

date

Current 

effective 

zone

Study 

reach 

length

(ft)

Study type

Community 

priority 

range

Community 

priority

Population 

density 

score

Population 

growth 

score

Yea

sinc

mos

recen

FIS 

scor

Wolfeboro 330239 {26D53DB7-7B3D-411F9F4B-3F45527CD6A4} Lake Winnipesaukee (1112496.50, 387477.71) 5/17/1989 AE 14,497.51 Use of effective information Medium High 1 8 4 6 Wolfeboro 330239 {1B96D7AD-ED9F-42E9-

AF09-0FF1DAF7BE04}

Lake Wentworth (1128835.01, 396955.56)

5/17/1989 AE 21,368.82 Use of effective 

information

Medium High

2 8 4 6 

Jackson 330014 {146A6F85-9520-457B8680-C5CE9AACC9DF} Ellis River (1108600.35, 600429.12) 7/2/1979 AE 3,580.83 Limited detailed study Medium High 1 1 4 10 Bartlett 330010 {5F69ECB2-9ED8-4085-

B4B6-75B38BC2C8CF}

Saco River (1075341.41, 575333.26)

5/1/1979 AE 65,255.08 Detailed study/ 

Riverine

Medium High

1 2 2 8 

Freedom 330013 {5A45E13B-DFC3-45A6-

8478-CF6929C53C73}

Ossipee River (1141998.56, 474733.64)

7/3/1995 A 3,461.74 Detailed study/ 

Riverine

Medium High

1 2 8 2 

Wolfeboro 330239 {6A547325-F4C1-4C27-

87C2-3A458B098889}

Front Bay (1103359.52, 397609.53)

5/17/1989 A 1,571.25 Detailed study/ 

Riverine

Medium High

6 8 4 6 

Wolfeboro 330239 {F906D694-49C1-45AB953A-130BABFECE16} Front Bay (1104321.50, 395589.66) 5/17/1988 A 3,520.91 Detailed study/ Riverine Medium High 6 8 4 6 Wolfeboro 330239 {3E948E43-7060-4BD9-

A0AC-23B995345C2B}

Lake Wentworth (1121878.52, 403907.34)

5/17/1989 A 2,319.11 Redelineation Medium 

High

4 8 4 6 

Wolfeboro 330239 {8CC55573-469C-440FB7CE-58B398039906} Unnamed (1106123.40, 397629.34) 5/17/1989 X 1,890.75 Detailed study/ Riverine Medium High 7 8 4 6 Jackson 330014 {40EF1A41-9C8F-4E8A8DA9-F6D7BB0DE91D} Wildcat Brook (1112104.50, 602716.68) 7/2/1979 AE 3,476.46 Limited detailed study Medium High 3 1 4 10 Freedom 330013 {BD6F6492-7FE6-4B8A9342-520C41B9792F} Ossipee River (1151866.28, 471544.57) 7/3/1995 A 8,620.30 Detailed study/ Riverine Medium High 2 2 8 2 Wolfeboro 330239 {B6005E63-0459-44EEBB5F-FF6A9FF17181} Crescent Lake (1107713.15, 397325.93) 5/17/1989 AE 6,537.02 Limited detailed study Medium High 3 8 4 6 Jackson 330014 {37FE6ED6-4ABB-4AB4-

B215-6013901BC493}

Unnamed (1110055.52, 600908.06)

7/2/1979 AE 2,124.35 Limited 

detailed study

Medium High

2 1 4 10 

Tamworth 330018 {0295F0A8-2FBE-418C9630-A8F9096DCD96} Chocorua River (1096984.98, 513747.79) 7/16/1991 A 14,651.93 Detailed study/ Riverine Medium High 1 2 2 4 Wolfeboro 330239 {25B2FF2D-5D85-4DC6-

AB2A-D98F96D5CAEB}

Ryefield Brook (1125214.47, 405030.95)

5/17/1989 A 1,377.03 Redelineation Medium 

High

5 8 4 6 

Wolfeboro 330239 {E3587649-DD10-4BF0-

9D1F-D1665163EFC0}

Ryefield Brook (1134284.52, 405110.92)

5/17/1989 A 2,092.68 Redelineation Medium 

High

10 8 4 6 

Eaton 330204 {AA55F42A-273D-44C9-

982D-1012638B76A8}

Conway Lake (1140886.36, 524549.78)

10/1/1976 A 6,614.82 Detailed study/ 

Riverine

Medium High

1 1 0 10 

Eaton 330204 {86097DD3-6DBA-45E9-

B830-0E3784D11023}

Conway Lake (1143340.51, 522593.61)

10/1/1976 A 2,612.45 Detailed study/ 

Riverine

Medium High

1 1 0 10 

Eaton 330204 {DA5461D4-5A88-410B8846-1D468DE766C2} Conway Lake (1143390.64, 530381.34) 10/1/1976 A 3,960.29 Detailed study/ Riverine Medium High 1 1 0 10 
70

Eaton 330204 {EF62BE0E-BC03-46EAAD01-C460E2B1B215} Conway Lake (1143397.90, 527631.34) 10/1/1976 A 2,750.73 Detailed study/ Riverine Medium High 1 1 0 10 Eaton 330204 {49C0DEBB-2EBA-4133-

B29A-3340782A427E}

Conway Lake (1144050.65, 524531.36)

10/1/1976 A 3,283.47 Detailed study/ 

Riverine

Medium High

1 1 0 10 

Bartlett 330010 {C8CF0330-163B-440BB261-03590DC1A8AA} East Branch Saco River (1125642.86, 593435.01) 5/1/1979 AE 18,164.69 Limited detailed study Medium High 2 2 2 8 Conway 330011 {7CB9B8B5-8ABB-4872-

8362-4EBA5D709E36}

Saco River (1156020.58, 548900.44)

6/3/2002 AE 

with Fl

5,164.23 Limited 

detailed study

Medium High

1 8 1 1 

Conway 330011 {3EB624BE-5083-4E7F9FDC-036C9D76D158} Saco River (1121949.94, 570079.81) 6/3/2002 AE with Fl 17,146.38 Limited detailed study Medium High 4 8 1 1 Jackson 330014 {FC95E2B4-3ACC-438FBD53-C80467940706} Unnamed (1111754.30, 599678.08) 7/2/1979 AE 1,067.03 Limited detailed study Medium High 4 1 4 10 Madison 330220 {E6C946BF-0BAF-454D95C6-26833FC4DC45} Davis Pond (1117058.75, 517598.53) 11/29/1977 A 3,348.46 Detailed study/ Riverine Medium High 1 2 2 10 Brookfield 330179 {20B0C77C-8304-4742-

BB75-F67BF62A6903}

Churchill Brook (1144471.97, 383267.84)

5/17/1977 A 8,436.54 Detailed study/ 

Riverine

Medium High

1 1 2 10 

Conway 330011 {174D96E7-6909-4AE3-

961D-7B8EBBB0DA33}

Saco River (1152999.40, 547489.96)

6/3/2002 AE 

with Fl

3,564.02 Redelineation Medium 

High

2 8 1 1 

Freedom 330013 {8966D394-1875-45F2-

92CA-82C9D649E338}

Ossipee River (1133522.20, 473033.00)

7/3/1995 AE 5,842.82 Redelineation Medium 

High

3 2 8 2 

Brookfield 330179 {8CCCEB3E-EDD1-47E6-

B7A9-6E41F6E6B9F3}

Pike Brook (1149892.30, 381452.89)

5/17/1977 A 2,193.40 Detailed study/ 

Riverine

Medium High

2 1 2 10 

Conway 330011 {A2885C72-811E-4263-

95D6-49208B4B7D9C}

Saco River (1129146.66, 549739.29)

6/3/2002 AE 

with Fl

2,969.27 Redelineation Medium 

High

3 8 1 1 

Tamworth 330018 {9385A790-E3D2-49FDA3C8-FDA144F3104D} Bearcamp River (1092597.92, 485779.40) 7/16/1991 AE 6,631.73 Redelineation Medium High 2 2 2 4 Conway 330011 {AD7CCAEE-1E4A-4499-

A6E9-B7B18C4F4C5F}

Kearsarge Brook (1129485.32, 569523.79)

6/3/2002 AE 

with Fl

3,684.26 Detailed study/ 

Riverine

Medium 9 8 1 1 

Conway 330011 {71C14AD8-E9FF-41C9-

9C9D-B3D18C6AB3C6}

Pequawket Pond (1124440.49, 536502.49)

6/3/2002 AE 2,796.00 Redelineation Medium 8 8 1 1 

Moultonborough 330015 {F11D4C61-2D9E-4102- 891B-0C7EACB8F681} Halfway Brook (1061097.68, 457570.89) 12/21/1979 A 11,247.67 Redelineation Medium 5 4 10 1 Moultonborough 330015 {E1A1B991-F862-476D- 83DE-051BA0DE519C} Lake Kanastaka (1036442.93, 447986.53) 12/21/1979 A 809.73 Redelineation Medium 5 4 10 1 Moultonborough 330015 {F66FE057-B0E6-4712- A1B1-BF79F1BA8B77} Lake Winnipesaukee (1050911.89, 433982.36) 12/21/1979 A 3,181.54 Redelineation Medium 5 4 10 1 Moultonborough 330015 {51042343-9DD4-4B00- 99EF-3BDFFFB1FA34} Shannon Brook (1073500.27, 444501.78) 12/21/1979 A 20,954.67 Redelineation Medium 5 4 10 1 

Appendix D. Prioritized flooding sources in Carroll County.—Continued[CID, Community Identification; FIS, Flood Insurance Studies; LOMC, Letter of Map Change]

Community CID Reach_ID Description

Current 

analysis 

effective 

date

Current 

effective 

zone

Study 

reach 

length

(ft)

Study type

Community 

priority 

range

Community 

priority

Population 

density 

score

Population 

growth 

score

Yea

since 

mos

recen

FIS 

scor
71

Moultonborough 330015 {09279208-D33E-4633- B595-55527B3D85AD} Unnamed (1057331.69, 455590.00) 12/21/1979 A 3,126.90 Redelineation Medium 5 4 10 1 Tamworth 330018 {542779DC-B86A-424AA6DC-655A4A108B3C} Bearcamp River (1079190.49, 483502.59) 7/16/1991 AE 5,908.02 Detailed study/ Riverine Medium High 3 2 2 4 Tamworth 330018 {D58CEA92-74E8-4FDBA2D4-FD2176762878} Bearcamp River (1071750.91, 484023.74) 7/16/1991 AE 6,519.84 Redelineation Medium High 4 2 2 4 Wolfeboro 330239 {E914141D-3689-42E7-

BB2D-C8C57D83DE79}

Wiley Brook (1118835.81, 412927.20)

5/17/1989 A 2,635.98 Redelineation Medium 

High

9 8 4 6 

Conway 330011 {1D247CB2-54B1-44B9-

BFBA-411A244C3DE2}

Middle River (1121073.32, 570027.91)

6/3/2002 AE 

with Fl

4,467.90 Limited 

detailed study

Medium High

5 8 1 1 

Conway 330011 {0922EACA-E3F4-4A31-

AE96-8702F35261D6}

Saco River (1148291.75, 546589.17)

6/3/2002 AE 

with Fl

5,998.19 Redelineation Medium 6 8 1 1 

Eaton 330204 {4699761F-AC13-46EB9016-B940DA8E75BA} Snow Brook (1140067.88, 522408.43) 10/1/1976 A 3,425.54 Detailed study/ Riverine Medium High 2 1 0 10 Moultonborough 330015 {8E04ED19-6854-47A4- 8DC4-B665263AFE69} Lees Lake (1053419.15, 452456.29) 12/21/1979 A 1,937.08 Redelineation Medium 5 4 10 1 Moultonborough 330015 {A24AD2F9-2E51-40F6- B188-D705E453B7F8} Red Hill River (1051214.82, 458382.16) 12/21/1979 A 8,337.37 Redelineation Medium 5 4 10 1 Moultonborough 330015 {F8C7E603-3EC6-493B- 90E4-51783EFC10E6} Red Hill River (1052504.52, 453332.53) 12/21/1979 A 3,306.80 Redelineation Medium 5 4 10 1 Moultonborough 330015 {AA6B8942-47F3-4566- 8D31-AF7C6084ECAF} Unnamed (1032646.83, 455845.97) 12/21/1979 A 1,850.82 Redelineation Medium 5 4 10 1 Moultonborough 330015 {E000B8F7-3FC4-4C5A- 8E88-BDAE8137FEE7} Unnamed (1047663.52, 445987.15) 12/21/1979 A 5,553.54 Redelineation Medium 5 4 10 1 Moultonborough 330015 {3B5ECAFE-81DC-4F62- 91C5-D25AA799C78E} Unnamed (1059621.45, 449830.84) 12/21/1979 A 1,559.38 Redelineation Medium 5 4 10 1 Moultonborough 330015 {33BA6BFF-F133-4869- B8C0-2687EB3997BC} Unnamed (1061506.70, 452137.93) 12/21/1979 A 4,973.20 Redelineation Medium 5 4 10 1 Moultonborough 330015 {220481A2-4B3F-45D9- B32E-958AC0058B9B} Unnamed (1066679.81, 450388.14) 12/21/1979 A 2,724.21 Redelineation Medium 5 4 10 1 Wolfeboro 330239 {4036AAB2-103B-4870-

81C1-6E56A66A38F4}

Harvey Brook (1103505.53, 404505.32)

5/17/1989 A 3,752.50 Redelineation Medium 8 8 4 6 

Freedom 330013 {4ED21A66-0B42-4008-

920C-543F125B98ED}

Ossipee River (1160991.33, 472520.59)

7/3/1995 A 1,512.74 Redelineation Medium 4 2 8 2 

Conway 330011 {24C8CD74-094D-4FB1-

9D40-89354C44CFF0}

Black Cat Brook (1154006.55, 545898.62)

6/3/2002 X 1,295.35 Detailed study/ 

Riverine

Medium 7 8 1 1 

Moultonborough 330015 {AB469B64-4779-43D1- 8C6C-E4DFD978C0FB} Unnamed (1048538.72, 459794.63) 12/21/1979 A 3,845.11 Redelineation Medium 5 4 10 1 

Appendix D. Prioritized flooding sources in Carroll County.—Continued[CID, Community Identification; FIS, Flood Insurance Studies; LOMC, Letter of Map Change]

Community CID Reach_ID Description

Current 

analysis 

effective 

date

Current 

effective 

zone

Study 

reach 

length

(ft)

Study type

Community 

priority 

range

Community 

priority

Population 

density 

score

Population 

growth 

score

Yea

since 

mos

recen

FIS 

scor
72

Moultonborough 330015 {6C8F6ACB-968D-409C- A5E8-6B5DB989294A} Unnamed (1053850.64, 440191.90) 12/21/1979 A 2,463.42 Redelineation Medium 5 4 10 1 Moultonborough 330015 {0F6C90E9-8F69-4E11- A87C-7F2401E3E6CC} Unnamed (1054821.64, 441318.03) 12/21/1979 A 6,402.36 Redelineation Medium 5 4 10 1 Moultonborough 330015 {1B68C2C3-7371-4D0E- 9E09-54DAB92A3057} Unnamed (1055776.40, 438907.89) 12/21/1979 A 2,979.97 Redelineation Medium 5 4 10 1 Moultonborough 330015 {1E2B893F-E96A-489D- A792-84CE75EF70DB} Unnamed (1057031.08, 460587.48) 12/21/1979 A 4,815.03 Redelineation Medium 5 4 10 1 Moultonborough 330015 {22773AA9-494A-4EFF- A855-1D0AA7BE582E} Unnamed (1059390.36, 465050.84) 12/21/1979 A 2,651.85 Redelineation Medium 5 4 10 1 Moultonborough 330015 {681DDDC4-15FE-41F9- BD4E-1FD2A0A3A64F} Unnamed (1059931.40, 436508.97) 12/21/1979 A 10,286.57 Redelineation Medium 5 4 10 1 Moultonborough 330015 {2FE953D3-8AB3-410E- 914F-11F3DE1A4C63} Unnamed (1063893.38, 466029.38) 12/21/1979 A 651.02 Redelineation Medium 5 4 10 1 Moultonborough 330015 {F9026ED6-32D2-499E- A8D6-9398979659BD} Unnamed (1063964.71, 462173.62) 12/21/1979 A 2,980.74 Redelineation Medium 5 4 10 1 Moultonborough 330015 {0BEE1DFD-2E8E-4252- 8064-C5125EFB0DC7} Weed Brook (1056539.63, 461540.38) 12/21/1979 A 5,153.89 Redelineation Medium 5 4 10 1 Freedom 330013 {FF3140E3-53EB-4FD9-

9C9E-BD5D68C1F115}

Cold Brook (1150534.90, 480643.51)

7/3/1995 A 2,944.13 Redelineation Medium 6 2 8 2 

Freedom 330013 {C1E25568-A50E-41A0-

AE2F-58A7D8D09317}

Cold Brook (1156036.23, 473001.60)

7/3/1995 A 6,092.12 Redelineation Medium 5 2 8 2 

Appendix D. Prioritized flooding sources in Carroll County.—Continued[CID, Community Identification; FIS, Flood Insurance Studies; LOMC, Letter of Map Change]

Community CID Reach_ID Description

Current 

analysis 

effective 

date

Current 

effective 

zone

Study 

reach 

length

(ft)

Study type

Community 

priority 

range

Community 

priority

Population 

density 

score

Population 

growth 

score

Yea

since 

mos

recen

FIS 

scor
Planning Level Cost Estimates for Carroll County

Planning level cost estimates are required to make an informed decision about the final extent of the 

flood insurance study revisions. Planning level estimates are based on $10,000 per mile for detailed study 

flooding sources, $3,000 per mile for limited detail study flooding sources and $800 per mile for redelineation using new topography. These costs are thought to be appropriate planning level estimates for 

New England, including mapping and survey, and excluding Digital Flood Insurance Rate Map (DFIRM) 

production and Digital Terrain Model (DTM) acquisition. DFIRM production is currently being undertaken 

by the University of New Hampshire Geographically Referenced ANalysis and Information Transfer system (UNH GRANIT) and no estimates of Baseline - DFIRM only costs have been made for this report. 

However, it is estimated that it would cost $3,000 per DFIRM panel for DFIRM production. Detailed estimates for flood insurance studies will be provided by the U.S. Geological Survey (USGS) once project 

scope details are confirmed.

Detailed Restudy, Limited Detail Restudy and Redelineation: The cost to perform hydrologic and 

hydraulic restudies is estimated to be $428,700 as listed in table 1. These costs include all of the stream segments highlighted in figure 4.

Table 1. Detailed restudy estimated costs for Carroll County, New Hampshire.

[DTM, Digital Terrain Model; LiDAR, Light Detection and Ranging]

Carroll County hydrologic

and hydraulic restudy Unit rate Stream miles Amount

Detailed Restudy of Zone X/A to Zone AE $10,000 27.8 $278,000

Limited Detailed Study $3,000 11.7 $35,100

Redelineation $800 32.0 $25,600

DTM acquisition Square miles

DTM Data (LiDAR) $3,000 30 $90,000

Carroll County total $428,700
Printed on recycled paper

Flynn, R.H.—Scoping of Flood Hazard Mapping Needs for Carroll County, New Hampshire—Open-File Report 2006–1236