Prepared for the 

Federal Emergency Management Agency, Region I and 

the Maine Floodplain Management Program, State Planning Office 

Scoping of Flood Hazard Mapping Needs for 

Androscoggin County, Maine 

By Charles W. Schalk and Robert W. Dudley

Open-File Report 2007–1131 

U.S. Department of the Interior

U.S. Geological Survey

 

1 
2 

Contents 

Section 1. Introduction .....................................................................................................................................................4

Background .....................................................................................................................................................................4

Scope of Work.................................................................................................................................................................5

Description of Androscoggin County..........................................................................................................................6

Section 2. Available Flood-Mapping Data and Mapping Needs...............................................................................9

Community FISs and FIRMs ..........................................................................................................................................9

State of Maine Best Available Data (BAD) for Unnumbered A-Zones .................................................................9

Letters of Map Change (LOMCs) .................................................................................................................................9

LOMCs in Androscoggin County................................................................................................................................10

Community Flood Ordinances.....................................................................................................................................11

Mapping Needs Update Support System (MNUSS) ..............................................................................................11

Community Assistance Visits (CAVs) and Community Assistance Contacts (CACs).......................................12

GIS Data .........................................................................................................................................................................13

Base Map Data .............................................................................................................................................................13

Topographic Data.........................................................................................................................................................15

Hydrography Data ........................................................................................................................................................16

Community GIS Contact Information.........................................................................................................................16

Community Meetings and Contacts ..........................................................................................................................16

Scope and Prioritization of Mapping Needs in Androscoggin County ...............................................................17

Prioritization of Towns in Androscoggin County.................................................................................................18

Prioritization of Waterbodies in Androscoggin County .....................................................................................19

Project Time and Costs for Identified Mapping Needs .........................................................................................24

Project Alternatives .....................................................................................................................................................24

Section 3. Options for Future Mapping and DTM Preparation................................................................................25

Mapping Requirements ...............................................................................................................................................25

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

Digital Terrain Models (DTMs)...................................................................................................................................27

Flood-Insurance Risk Zones .......................................................................................................................................28

Section 4. References Cited ..........................................................................................................................................29

Appendices........................................................................................................................................................................30

Appendix A: Community Contacts and Best Available Data: Androscoggin County .........................................31

Appendix B: Community Scoping Interview Data: Androscoggin County ...........................................................46

Appendix C: Existing MNUSS Data Entries: Androscoggin County ......................................................................56

Appendix D: Attachments ..............................................................................................................................................64

Appendix E: Census Block-Group Data.......................................................................................................................70

 
3 

CONVERSION FACTORS AND ABBREVIATIONS

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 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)

OTHER ABBREVIATIONS USED IN REPORT 

BAD Best Available Data 

BFE Base Flood Elevation 

CAC Community Assistance Contact 

CAV Community Assistance Visit 

DFIRM Digital Flood Insurance Rate Map 

FEMA Federal Emergency Management Agency 

FHBM Flood Hazard Boundary Map 

FIRM Flood Insurance Rate Map 

FIS Flood Insurance Study 

GIS Geographic Information System 

LOMC Letter of Map Change 

MEGIS Maine Office of Geographic Information Systems 

MFMP Maine Floodplain Management Program 

MNUSS Mapping Needs Update Support System 

NFIP National Flood Insurance Program 

USGS United States Geological Survey 
4 

Scoping of Flood Hazard Mapping Needs for 

Androscoggin County, Maine 

By Charles W. Schalk and Robert W. Dudley

Section 1. Introduction 

This report was prepared by the U.S. Geological Survey (USGS) Maine Water Science Center as the 

deliverable for scoping of flood hazard mapping needs for Flood Insurance Study revision in 

Androscoggin County, Maine, under Federal Emergency Management Agency (FEMA) Inter-Agency 

Agreement Number HSFE01-06-X-0020. This section of the report explains the objective of the task 

and the purpose of the report.

Background 

The Federal Emergency Management Agency (FEMA) developed a plan in 1997 to modernize 

the FEMA flood mapping program. FEMA flood maps delineate flood hazard areas in support of the 

National Flood Insurance Program (NFIP). FEMA’s plan outlined the steps necessary to update 

FEMA’s flood maps for the nation to a seamless digital format and streamline FEMA’s operations in 

raising public awareness of the importance of the maps and responding to requests to revise them. The 

modernization of flood maps involves conversion of existing information to digital format and 

integration of improved flood hazard data as needed and as funds allow. To determine flood mapping 

modernization needs, FEMA has established specific scoping activities to be done on a county-bycounty basis for identifying and prioritizing requisite flood-mapping activities for map modernization. 

The U.S. Geological Survey (USGS), in cooperation with FEMA and the Maine Floodplain 

Management Program (MFMP) State Planning Office, began scoping work in 2006 for Androscoggin 

County. Scoping activities included assembling existing data and map needs information for 

communities in Androscoggin County, documentation of data, contacts, community meetings, and 

prioritized mapping needs in a final scoping report (this document), and updating the Mapping Needs 

Update Support System (MNUSS) Database with information gathered during the scoping process. 

The average age of the FEMA floodplain maps in Androscoggin County, Maine, is at least 

17 years. Most studies were published in the early 1990s, and some towns have partial maps that are 

more recent than their study date. Since the studies were done, development has occurred in many of 

the watersheds and the characteristics of the watersheds have changed with time. Therefore, many of 

the older studies may not depict current conditions nor accurately estimate risk in terms of flood 

heights or flood mapping. 
5 

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 

MNUSS database, community surveys, and CAVs, if available. FEMA archives will be inventoried 

for effective 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 

data will be identified. Data from the MFMP database also will be utilized.

Task 2: Contact communities in Androscoggin 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 changes 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. 

On the basis of 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 Androscoggin County. The draft project scope will summarize available information, 

evaluate effective FIS data for use in the project, and identify other data and the source of data needed 

to complete the project. The draft project scope will establish prioritized mapping needs according to 

census and waterbody criteria and estimate schedules and associated costs for completion of the 

components of flood mapping.

The following subject areas are documented in this report as set forth in the statement of work: 

available flood-mapping-related data and documented mapping needs, community meetings and 

contacts, scope and prioritization of mapping needs, and project methods. Scoping-level time and 

costs for identified mapping needs will be provided as a document separate from this report. The 

appendix section of this report provides a community by community summary of information 

obtained and used in the scoping process for all 14 communities in Androscoggin County that have 

Flood Insurance Rate Maps (FIRMs) and (or) Flood Insurance Studies (FISs) (table 1). 
6 

Table 1. Organized communities in Androscoggin County, Maine. 

[CID, Community identification number; FIRM, Flood Insurance Rate Map; *, Community has a published Flood 

Insurance Study] 

Community CID 

Land area, 

in square miles Population 

(year 2000) 

Population density 

(year 2000), in people per 

square mile 

FIRM date 

Auburn 230001 65.7 23,203 353 18-Oct-95* 

Durham 230002 39.0 3,381 86.7 4-May-88* 

Greene 230475 35.2 4,076 116 3-May-90* 

Leeds 230003 43.4 2,001 630 16-Jul-90* 

Lewiston 230004 35.5 35,690 1,005 28-Sep-79* 

Lisbon 230005 23.8 9,077 381 4-Mar-85* 

Livermore 230006 39.4 2,106 53.5 5-Aug-91* 

Livermore Falls 230173 20.4 3,227 158 3-May-90* 

Mechanic Falls 231007 11.2 3,138 280 17-May-90* 

Minot 230008 29.7 2,248 75.7 17-May-90* 

Poland 230009 47.2 4,866 103 20-May-96* 

Sabattus 230011 26.9 4,486 167 15-Feb-80* 

Turner 230010 62.7 4,972 79.3 5-May-03* 

Wales 230439 16.9 1,322 78.2 21-Feb-75* 

Total 497 103,843 209 (average) 

Description of Androscoggin County 

Androscoggin County in southern Maine (fig. 1) encompasses an area of 497 square miles 

(mi2

) and comprises 14 municipalities (towns and(or) cities) (table 1, fig. 1). The total population in 

Androscoggin County reported by the 2000 census was approximately 103,850 people. The 

population for the 2000 census represents a 1-percent decrease from the population reported in the 

1990 census (105,260 people) and a 4-percent increase over the population reported in the 1980 

census (99,660 people) (University of Maine, 2004). 

Androscoggin County contains or borders 860 mapped ponds and lakes ranging in surface area 

from less than 0.1 acre to 4,300 acres for a total surface area of 18,176 acres (28 mi2

), based on GIS 

analysis. Median pond size is 0.3 acre; Thompson Lake, in the town of Poland, is the largest 

waterbody. Other notable lakes in Androscoggin County include Lake Auburn (2,280 acres), Sabattus 

Pond (1,960 acres), the Range Ponds (627 acres), and Androscoggin Lake (4,020 acres). Withdrawals 

by the Auburn and Lewiston water districts account for about 47 percent of Lake Auburn’s annual 

outflow, or about 392 million cubic feet (ft3

) (Dudley, 2004). Lake Auburn serves as the principal 

water supply for about 45,000 people, or 43 percent of Androscoggin County. Two ponds in 

Livermore (Moose Hill and Parkhurst) also are used for public water supply. 

Androscoggin County includes approximately 750 mi of rivers and streams (fig. 2). 

Androscoggin River is the largest river in Androscoggin County, flowing approximately from north to 

south through the county. Androscoggin River drains an area of about 3,420 mi2

 where it crosses the 

county line into Cumberland County. 
Figure 1. Communities in Androscoggin County, Maine. 

7 
Figure 2. Hydrology of Androscoggin County, Maine. 

8 
9 

Section 2. Available Flood-Mapping Data and Mapping Needs 

Flood-mapping data and mapping needs were compiled as part of this effort by means of state 

and community contacts, community scoping meetings, and manual and on-line data searches. This 

report is a comprehensive compilation of data acquired for scoping tasks relating to Androscoggin 

County. 

Community FISs and FIRMs 

Androscoggin County includes 13 communities that have FIRMs with active FIS reports and 

1 community (Wales) that has a FIRM with only unnumbered A-zones. The effective map dates range 

from February 1, 1975 (Wales) to May 5, 2003 (Turner). Twenty-five percent of the FIRMs in 

Androscoggin County are 20 years old or older; 93 percent are 10 years or older. The oldest FIRM is 

31 years old, the most recent is 3 years old, and the average age is approximately 17 years. It is 

important to note that the effective map date is the date the map was last revised. Some revisions were 

minor adjustments and did not affect entire map panels. As a result, much of the information depicted 

on the county’s floodplain maps is likely to be older than 17 years.

State of Maine Best Available Data (BAD) for Unnumbered A-Zones 

Over several years, MFMP has developed information about the best available data (base flood 

elevations) for water bodies designated as unnumbered “A” zones on flood maps for communities 

throughout the State. The base flood elevations tabulated in this data set are derived from hydrologic 

and(or) hydraulic studies of water bodies that may be published in FISs for adjacent communities or 

published as part of flood studies not directly related to FEMA FISs (e.g. Army Corps of Engineer 

projects, Natural Resources Conservation Service projects, and Letters of Map Changes). These data 

are used in this report as part of the prioritization of mapping needs for a community (see section: 

Scope and Prioritization of Mapping Needs in Androscoggin County). These data are documented in 

the appendices of this report for each community. Information about these data is available from the 

MFMP web site at: http://www.state.me.us/spo/flood/bad/, accessed on September 8, 2006.

Letters of Map Change (LOMCs) 

A Letter of Map Change (LOMC) is a letter issued by FEMA in response to a request to revise 

or amend an effective National Flood Insurance Program (NFIP) map to remove a property or reflect 

changed flooding conditions on the effective map. LOMCs may include Letters of Map Amendments 

(LOMAs), Letters of Map Revisions (LOMRs), and Letters of Map Revision based on Fill (LOMR-F) 

as defined below:

LOMAs: A LOMA is an official amendment, by letter, to an effective NFIP map. A LOMA 

establishes the property 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, floodplain and(or) floodway boundary delineations, planimetric 

features, and(or) Base Flood Elevations (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). 
10 

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 or change. The letter does not revise an effective 

NFIP map, but indicates whether the project, if built as proposed, would be recognized by FEMA. 

LOMCs in Androscoggin County 

The presence and number of LOMCs in a community can be an indication of increasing 

development in a community and(or) problematic flood hazard boundaries. LOMCs are used in this 

report as part of the prioritization of mapping needs for a community (see section: Scope and 

Prioritization of Mapping Needs in Androscoggin County). LOMC data for Androscoggin County are 

summarized in table 2. A Geographic Information System (GIS) digital data set representing 

georeferenced locations of LOMCs in Androscoggin County was created as part of the scoping effort 

and uploaded to the Watershed Information System (WISE, a software package used by FEMA to 

catalogue scoping needs) database. 

Table 2. Summary of letters of map change (LOMCs) in Androscoggin County, Maine. 

[CID, Community identification number] 

Community name CID Current map 

date Map age 

(years)

Number of 

LOMCs 

Auburn 230001 18-Oct-95* 11 4 

Durham 230002 4-May-88* 18 1 

Greene 230475 3-May-90* 16 1 

Leeds 230003 16-Jul-90* 16 1 

Lewiston 230004 28-Sep-79* 27 3 

Lisbon 230005 4-Mar-85* 21 1 

Livermore 230006 5-Aug-91* 15 0 

Livermore Falls 230173 3-May-90* 16 0 

Mechanic Falls 231007 17-May-90* 16 0 

Minot 230008 17-May-90* 16 0 

Poland 230009 20-May-96* 10 6 

Sabattus 230011 15-Feb-80* 26 2 

Turner 230010 5-May-03* 3 4 

Wales 230439 21-Feb-75* 31 0 
11 

Community Flood Ordinances 

The MFMP provides all participating communities (92 percent of the State’s communities) 

with model floodplain management ordinances, guidance and review, and maintains all community 

flood ordinances on file. The contact for community flood ordinances is the MFMP: 

Brigitte Ndikum-Nyada 

Planning and Research Associate 

Maine Floodplain Management Program 

State Planning Office 

184 State Street, 38 SHS 

Augusta, ME 04333 

Tel: 207-287-8932 

Fax: 207-287-6489 

Mapping Needs Update Support System (MNUSS) 

In accordance with section 575 of the National Flood Insurance Reform Act of 1994 (Federal 

Emergency Management Agency, 1994), FEMA assesses “...the need to revise and update all 

floodplain areas and flood risk zones identified, delineated, or established based on an 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 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 hydrologic and hydraulic conditions, changes to Base Flood Elevations (BFEs), and(or) changes in the 

floodplain delineation.

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

FEMA, state NFIP coordinators, study contractors, Cooperating Technical Partners (CTPs), and other 

Federal agencies, such as the U.S. Army Corps of Engineers (USACE) and the USGS. All potential 

entries are reviewed and approved by the FEMA MNUSS controller prior to entry into the system. 

MNUSS entries for Androscoggin County are summarized in table 3. MNUSS records exist 

only for the towns of Durham and Turner. Of the 12 MNUSS entries on record, seven are not valid 

(having been addressed during Turner’s updates in 2003), three require restudy (Durham), and two 

require floodways (Turner). All of the MNUSS entries relate to changes in base flood elevations 

(BFEs), and all are expected to increase the BFE by 1 to 5 ft. 

For the scoping process, existing entries in MNUSS were retrieved by USGS and reviewed 

with MFMP and community representatives. The review process resulted in the identification of 

duplicate, outdated, missing, and(or) erroneous entries. These findings will provide the basis for 

updates to MNUSS or its successor upon completion of the scoping report. Existing MNUSS entries 

are compiled in appendix C. 
12 

Table 3. Summary of entries in the Mapping Needs Update Support System (MNUSS) for 

Androscoggin County, Maine. 

[CID, Community Identification number; MFMP, Maine Floodplain Management Program; BFE, base flood elevation; 

DFIRM, Digital Flood Insurance Rate Map; BAD, best available data; NRCS, Natural Resources Conservation Service; 

--, not applicable] 

Community name CID Number MFMP comment Anticipated BFE change 

Auburn 230001 0 -- -- 

Durham 230002 3 Requires restudy Increase greater than 5 feet 

Greene 230475 0 -- -- 

Leeds 230003 0 -- -- 

Lewiston 230004 0 -- -- 

Lisbon 230005 0 -- -- 

Livermore 230006 0 -- -- 

Livermore Falls 230173 0 -- -- 

Mechanic Falls 231007 0 -- -- 

Minot 230008 0 -- -- 

Poland 230009 0 -- -- 

Sabattus 230011 0 -- -- 

Turner 230010 7 Addressed in 2003 study Increase greater than 5 feet 

Turner 230010 2 Floodways needed Increase greater than 5 feet 

Wales 230439 0 -- -- 

Community Assistance Visits (CAVs) and Community Assistance Contacts (CACs) 

CAVs and CACs provide assistance to communities regarding the administration and 

enforcement of their floodplain management ordinances. A CAV is a scheduled visit (on the date 

opened) to an NFIP community for the purpose of conducting a comprehensive assessment of the 

community’s floodplain management program. A CAC is used to establish a contact with a 

community for the purpose of determining if any problems or issues exist and to offer the community 

assistance if necessary. CACs can be conducted by means of a telephone call or brief visit. “Date 

opened” refers to the date that the visit or call was initiated, whereas “date closed” refers to the date 

that the results of the assistance call or visit is finalized. CAV and CAC data for the county are 

presented in table 4. 
13 

Table 4. Summary of Community Assistance Visits (CAVs) and Community Assistance Contacts (CACs) 

in Androscoggin County, Maine. 

[CID, Community Identification number; FEMA, Federal Emergency Management Agency; --, no close date] 

CID Community name Date opened Agency Type Date closed 

230001 Auburn 6/09/1998 FEMA CAV 8/14/1998 

230002 Durham 9/16/1998 STATE CAC 8/06/1999 

230002 Durham 8/04/2004 STATE CAC -- 

230475 Greene 8/31/1995 STATE CAC 9/26/1995 

230475 Greene 9/24/1998 STATE CAC 6/07/1999 

230003 Leeds 7/21/1993 STATE CAC -- 

230004 Lewiston 1/21/1993 STATE CAV 2/08/1993 

230005 Lisbon 6/30/1992 STATE CAC 9/08/1992 

230006 Livermore 4/11/1994 STATE CAC 5/16/1994 

230173 Livermore Falls 6/25/1993 STATE CAC 9/01/1993 

231007 Mechanic Falls 1/26/1994 STATE CAC 3/22/1994 

230008 Minot 8/24/1995 STATE CAC 9/29/1995 

230009 Poland 7/23/1992 STATE CAC 9/04/1992 

230011 Sabattus 7/28/1995 STATE CAC 8/11/1995 

230010 Turner 5/01/1991 STATE CAC 5/13/1991 

GIS Data 

Most GIS data in Maine reside with the Maine Office of GIS (MEGIS) as the agency acts as a 

central repository for these data. Although not every community shares their GIS data with MEGIS, 

many data sets are shared and served over the Internet. Data can be accessed on the MEGIS web site 

at: http://apollo.ogis.state.me.us/. Community-specific data that are not shared with MEGIS are 

documented as part of the community scoping-meeting process (see interview data in Appendix B). 

All data served by MEGIS are referenced to North American Datum 1983 (NAD83), Universal 

Transverse Mercator (UTM) Zone 19, in meters, and are available to FEMA. 

Base Map Data 

Base map layers maintained by MEGIS include features such as roads, streams, and political 

boundaries. Base map data layers have been acquired from a variety of sources including the USGS 

and represent many of the feature types found on USGS topographic maps. More recently developed 

data were derived from various sources providing improved base map accuracy. Existing coverages 

maintained by MEGIS can be linked to or viewed at the following URL: 

http://apollo.ogis.state.me.us/ 

The southern part of Androscoggin County has detailed digital orthophotography available at 

0.5-foot resolution; the 0.5-foot (each image pixel representing a planimetric square 0.5 feet on a side) 

imagery data set is a true-color mosaic of high-resolution digital orthophotographs produced from 

aerial photos collected over areas of southwest Maine in April 2001 (fig. 3). The remainder of the 

county is covered by 1-foot and 2-foot resolution digital orthophotographs produced from aerial 

photos collected over southwest Maine in spring 2003 (fig. 3). Community-specific aerial photographs 

are documented as part of the community scoping-meeting process (Appendix B). 
The following cities and towns indicated during the interview process that they have base-map 

data available in some form: 

Auburn – April 2006, scale 1"=600', color, digital ortho. 

Lewiston – 1997 and 2001 photos, scale not known. 

Lisbon – 1998 state ice storm photos, color. 

Turner – Flown by Sewall, 2001; MEGIS should have these data. 

Figure 3. Orthophotography indices for Androscoggin County, Maine. Indices indicate coverage of 

0.5-foot (each image pixel representing a planimetric square 0.5 foot on a side, shaded green), 1-foot 

(pink), and 2-foot (yellow) orthophotography archived and served through the internet by the Maine 

Office of Geographic Information Systems (MEGIS). 

14 
15 

Topographic Data 

Digitally scanned USGS 7.5-minute quadrangles provide topographic data for the entire state 

of Maine with 10- and 20-ft contour intervals, variable by location. Digital Elevation Models (DEM) 

also are available through the USGS National Elevation Dataset (NED). The NED has been developed 

by merging the highest-resolution, best quality elevation data available across the United States into a 

seamless raster format. NED horizontal datum for Maine is NAD83 and vertical datum is North 

American Vertical Datum 1988 (NAVD88). The NED is continually updated as best available DEM 

data become available. DEM data with 30 meter (m) resolution (each raster pixel represents a 

planimetric square 30 meters on a side) are available for the entire state of Maine. DEM data with 

10-m resolution (1/3 arc second) are available for the entire state of Maine except for extreme 

northern Somerset and Oxford Counties. DEM data can be downloaded through the USGS Seamless 

Data Distribution Web site at http://seamless.usgs.gov/web site/seamless/viewer.ph. 

The Maine Department of Transportation (MDOT) routinely collects detailed topographic data 

for highway projects. The data are typically limited to an area within 300 ft of the centerline of the 

highway. The scope, scale, and accuracy of the data are project specific and depend on the flight level 

of the survey. MDOT does not maintain any kind of searchable database cataloging these data. The 

MDOT Survey and Photogrammetric Group is willing to search their files for available data if they 

are provided a GIS shapefile of an area of interest. The primary contact for topographic data from the 

MDOT Survey and Photogrammetric Group is Tim Liseige, Photogrammetric and Control Engineer, 

(207) 624-3493, tim.liseige@maine.gov. Seven MDOT projects, dated 1965–79, intersect streams 

that were identified as needing updated flood-insurance studies for Androscoggin County (section 

Prioritization of Waterbodies in Androscoggin County), although the length of streams was not 

determined (table 5). 

Table 5. Maine Department of Transportation mapped projects that intersect streams in Androscoggin 

County identified as needing updated flood-insurance studies.

Community Description Project Waterbody Date 

Lewiston, Auburn Circumferential 932-1(501) 

Androscoggin 

River, Taylor 

Pond; Bobbin, 

Stetson, and 

Taylor Brooks 12/1/1968 

Lewiston, Auburn Minot Avenue - Center Street D 951-9(81) 

Androscoggin 

River 11/22/1972 

Auburn Routes 11, 121 F-017-1(16) 

Little Androscoggin River 5/2/1969 

Auburn Topographic survey Moose Brook 4/25/1979 

Auburn Routes 4, 100, 202; I-95 218(2) & 21-2(2) 

Little Androscoggin River 4/25/1979 

Livermore Falls Route 4 F-021-1(11) 

Androscoggin 

River 4/21/1965 

Livermore Falls Routes 4, 17 F-021-1(11) 

Androscoggin 

River 4/21/1965 
16 

Community-specific topographic data are documented as part of the community scopingmeeting process (Appendix B). The following municipalities indicated during the interview process or 

to the State Planning Office that they have topographic data in some form: 

Auburn – 2-ft contours citywide, digital, recent. 

Lewiston – 2-ft contours citywide, digital, recent. 

Hydrography Data 

MEGIS, in cooperation with the USGS, is currently enhancing Maine’s 1:24,000 digital 

hydrography data to create National Hydrography Dataset (NHD) high-resolution data (spatial data 

describing hydrologic features). The NHD data are partitioned into the following layers: streams, 

ponds, rivers, coast, and National Wetlands Inventory (NWI) data. Progress in this effort is ongoing—

the current status of these data can be determined by contacting MEGIS at (207) 624-8800 or by 

visiting their web site http://apollo.ogis.state.me.us/. NHD data are available for download from the 

NHD geodatabase at http://nhdgeo.usgs.gov/viewer.htm. 

Community-specific hydrography data are documented as part of the community scopingmeeting process (Appendix B). The following towns indicated during the interview process that they 

have hydrography data available in some form: 

Auburn – Taylor Brook and Bobbin Mill Brook. 

Livermore Falls – Contact Darrell Brown of Maine Land Development; assorted data 

throughout town. 

Community GIS Contact Information 

GIS contact information obtained through community scoping meetings is provided in 

Appendix B for each community as part of the interview data. Additional resources were identified 

through the Androscoggin Valley Council of Governments (AVCOG) (http://www.avcog.org), which 

serves partly as a GIS resource center for Androscoggin County. AVCOG often uses data available 

through MEGIS to respond to calls from towns for hardcopy maps. The maps are usually used for 

planning purposes, such as zoning maps and future land-use maps. The contact at AVCOG is Barbara 

Fortier, (207) 783-9186, bfortier@avcog.org, 125 Manley Road, Auburn, Maine, 04210. 

Representatives of Poland and Turner indicated that they hope to have GIS capabilities within 

the next two years. Communities that have GIS capabilities include: 

Auburn – contact Gary Johnson, 207-333-6601 x 1138. 

Greene – contact the fire chief; they may have some ArcView licenses. 

Lewiston - contact Jim Ward, GIS Coordinator, 207-784-5753. 

Lisbon - contact Ryan Leighton, town engineer, 207-353-3000 x 116. 

Community Meetings and Contacts 

A community scoping meeting was held for Androscoggin County at AVCOG headquarters on 

Tuesday, December 12, 2006, from 11:30 a.m. to 2:00 p.m. An invitation letter (with agenda) 

specifying the time, place, and purpose of the meeting was mailed to at least two community officials 

in every municipality. The letters were addressed to the community code enforcement officer and to 

the community manager or first select person. Example copies of the letter and meeting agenda are 
17 

attached to this report. Thirteen representatives from nine communities and AVCOG attended the 

meeting (Livermore, Mechanic Falls, Minot, Sabattus, and Wales did not attend). 

The goals of these meetings were to:

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

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

include as a part of the flood map update.

Robert Dudley, USGS Maine Water Science Center, and Tom Marcotte, MFMP, conducted 

the meeting with support from Charles Schalk (USGS) and Ellen O’Brien and Michael Montagna 

(MFMP). Community representatives were provided an overview of the Map Modernization program, 

the map production schedule, and the technical process. 

The latter part of the meeting involved breaking out into small groups of community 

representatives with group leaders from USGS and MFMP. The group leaders administered and 

assisted with the completion of map needs interview forms (example attached, Appendix D). 

Community representatives were provided copies of their community’s flood maps and were 

encouraged to document problem areas, concerns, and so forth, as necessary. Community 

representatives were asked to explain and prioritize their needs if possible. MNUSS entries were 

reviewed with community representatives for verification. The marked-up flood maps reside with the 

MFMP. 

During the scoping meetings, the MFMP’s Best Available Data (BAD) were reviewed with 

each community representative if BAD data existed for that community. The review was done to 

make the community aware of the information if they were not already aware of it, and to solicit input 

on BAD data if any additional information was available to the community that was not listed in the 

State Planning Office’s BAD database. 

The following three subject areas encompass the data gathered from the scoping meeting 

process and completion of interview forms: (1) community contact information, (2) areas of the 

existing flood maps where there are significant problems (poor mapping or development pressures) or 

changes to hydrologic/hydraulic conditions, and (3) community mapping resources. The data from the 

scoping meetings were entered into the WISE tool and are reported for each community in the 

Appendices as part of the interview data (Appendices A, B, and C). 

Scope and Prioritization of Mapping Needs in Androscoggin County 

Two prioritization schemes are presented in this section. The first scheme uses criteria 

provided by FEMA and MFMP to rank communities in Androscoggin County having the greatest 

need for updated mapping on the basis of risk, as quantified in census block-group data. This ranking 

meets the goals of the map modernization process as described in FEMA’s mid-course adjustment 

(Federal Emergency Management Agency, 2006). The second scheme uses the results of the first, plus 

additional information about waterbodies according to community and MFMP representatives, to rank 

flood hazards (waterbodies) in Androscoggin County having the greatest need for updated mapping. 

This ranking can be used by FEMA to maximize the benefit of any future engineering studies. 
18 

Prioritization of Towns in Androscoggin County 

USGS staff (Robert Dudley, Charles Schalk) met with MFMP staff (Lou Sidell, Tom 

Marcotte) in July 2006 as an initial kick-off meeting for the scoping process. An action item resulting 

from that meeting involved MFMP staff arriving at a list of criteria that should be considered for 

prioritizing potential mapping needs of towns in the county. MFMP decided that the 8 criteria 

identified by FEMA during their midcourse adjustment were adequate for assessment of priority by 

town and(or) census block. These 8 criteria are based on block-group data provided by the U.S. 

Census Bureau and are used to compute census block group risk scores. Table 6 lists the criteria and 

their data source. 

Table 6. Maine Floodplain Management Program criteria for prioritization of community-based flood 

mapping needs in Androscoggin County. 

[FIA, Federal Insurance Administration] 

Criterion Data source 

Population density Census block group data 

Housing unit density Census block group data 

Claims density FIA Claims dataset 

Repetitive losses claims density FIA Claims dataset 

Repetitive loss properties density FIA Claims dataset 

Policies density County distribution 

Disasters County distribution 

Population growth from 1990-2000 County distribution 

Scores for each of the criteria listed in table 6 were calculated and normalized for each census 

block group included in Androscoggin County. The normalization process encompassed two steps. 

First, the calculated value for each block group was compared with the range of values calculated for 

all block groups in the State of Maine. In this way, scores calculated for Androscoggin County would 

be scaled consistently with those calculated for every other county in Maine. Second, the logarithm of 

the calculated and scaled value for each block group was taken to place the scaled values in the range 

of 0 to 10. This was to equalize the weight of each of the scoring criteria. After the data had been 

normalized, the maximum census block group risk score for each town was recorded. 

Results of the community-based flood mapping assessment on the basis of census block 

groups are shown in table 7. The communities of Auburn, Lewiston, and Mechanic Falls scored 

highest. After reviewing the results, MFMP determined them to be reasonable and in accord with their 

understanding of community-based mapping needs in Androscoggin County. Scoring results by 

census block group are provided in Appendix E. 
19 

Table 7. Maine Floodplain Management Program criteria for prioritization of community-based flood 

mapping needs in Androscoggin County. 

[CID, community identification number; CBG, census block group] 

Community CID Maximum CBG risk score 

Auburn, City of 230001 56.08 

Lewiston, City of 230004 43.87 

Mechanic Falls, Town of 230007 40.19 

Sabattus, Town of 230011 39.06 

Lisbon, Town of 230005 32.51 

Greene, Town of 230475 31.38 

Turner, Town of 230010 31.37 

Poland, Town of 230009 31.28 

Minot, Town of 230008 30.93 

Durham, Town of 230002 30.81 

Leeds, Town of 230003 29.97 

Livermore, Town of 230173 29.12 

Livermore Falls, Town of 230006 27.30 

Wales, Town of 230439 25.02 

Prioritization of Waterbodies in Androscoggin County 

Many towns and(or) census blocks in Androscoggin County are separated from neighboring 

towns and(or) census blocks by bodies of water that may need new or revised studies. In cases such as 

these, ranking the waterbodies in order of priority can promote most efficient use of limited resources 

for study in Androscoggin County. When a waterbody that serves as a boundary among several towns 

receives funding for study, then all of the towns that have that waterbody as a boundary can benefit 

from the results of the study. 

Mapping needs for waterbodies were grouped into one of four different types of studies 

required 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 MEGIS and other FEMA 

contractors.

• Redelineation: Existing hydrologic and hydraulic studies of the water body are adequate 

and the water body requires only the redelineation of the base flood elevations using 

updated topographic data.

• Limited Detailed Study: Automated tools are used to produce digital information or flood 

mapping for the water body in question has already been studied in detail and requires 

limited technical reworking of the hydrologic and(or) hydraulic analysis or the water body 

in question has not been studied in detail but it is expected that approximate methods 

would suffice to adequately map the flood hazard.

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

surveyed cross-sections and structures. Because this is the most expensive type of study 

that FEMA can perform, the scope of the detailed study may be limited.
20 

Note that Detail and Limited Detail studies are also assumed to need redelineation using 

updated topographic data, incorporating results from the new hydrologic and(or) hydraulic analyses. 

USGS staff (Robert Dudley, Charles Schalk) met with MFMP staff (Lou Sidell, Tom 

Marcotte) on December 19, 2006, to review interview data and marked-up maps and to arrive at an 

initial list of mapping needs by waterbody for the county. Note that only waterbodies identified by the 

communities during the scoping effort were included in this list of mapping needs; waterbodies in 

communities that chose not to participate in the scoping effort are not included in the list. The 

mapping needs derived through these meetings were entered into the WISE scoping application.

During this meeting, the criteria listed in table 8 were identified as necessary to the ranking of 

waterbodies and the type of study needed for each waterbody was identified. Descriptions of these 

criteria are provided in the text following table 8. 

Table 8. Maine Floodplain Management Program criteria and qualitative weight for prioritization of 

waterbody-based flood mapping needs in Androscoggin County. 

[MFMP, Maine Floodplain Management Program; LOMC, Letter of Map Change] 

Community prioritization criteria Weight Range Score 

Ranking from census block-centered 

analysis 3 22.9 – 34.4 One-eighth of value; theoretical maximum = 10 points 

Community and (or) MFMP priority 1 1 - 3 1 = highest = 10 points 

2 = medium = 6 points 

3 = lowest = 3 points 

Connectivity 1 1 – 4 One point per connected community 

Map age, in years 1 14 – 32 0.3 point per year 

Map type 1 b, c, d, e 

b = unnumbered A-Zone : 10 points 

c = map with elevations : 6 points 

d = map with elevations and floodways: 3 points 

e = map with coastal velocity zones: 3 points 

Number of LOMCs 1 0 – 22 0.5 point per LOMC 

Presence of best available data 1 Yes / No Yes = 10, No = 0 

In most cases, towns identified their highest waterbody mapping priorities during the scoping 

meeting. In some cases, priority was indicated by MFMP during the December 19 meeting on the 

basis of historically documented mapping needs of the towns. Higher priority was given to A-zone 

waterbodies with existing BAD where maps could be created or greatly improved by simply 

collecting improved topographic information and redelineating existing detailed base flood elevations. 

Higher priority was given to waterbodies that had been historically documented as a mapping need in 

either the MFMP’s Database or MNUSS or both. Historical documentation of a mapping need is 

indicative of an ongoing need that has been known to be a need in the past. Priority was ranked from 1 

(highest) to 3 (lowest). Many towns indicated more than three waterbodies that need to be addressed; 

in these cases, all waterbodies ranked as lowest priority were given a priority ranking of 3. 

Higher priority was given to waterbodies with high connectivity, where connectivity is a 

measure of the number of neighboring communities that are adjacent to or would otherwise benefit 

from improved mapping of a particular water body. For example, an A-zone river reach that 

connected to a detailed study upstream or spanned multiple communities or a lake that bordered 

multiple communities would receive higher priority than a pond contained within the corporate limits 

of a single community. 
21 

Map age was calculated as the difference between December 2006 and the effective date of the 

map, in years. No communities in Androscoggin County operate with the “flat maps,” or FHBMs that 

had been converted to FIRMs by letter. 

Type of map also was included as a criterion. Maps that do not include studies and contain no 

BFEs are (b). Maps with BFEs but no delineated floodways are (c). Maps with BFEs and floodways 

are (d). Maps that include coastal velocity zones are (e). Highest scores were assigned to those maps 

with least amount of detail (b, then c, then d and e). 

Because the number of LOMCs issued for a community is indicative of flooding issues, 

LOMCs were included in the scoring criteria. LOMCs that were included in the scoring were (a) those 

that contained coordinate information and could be plotted with some degree of certainty on a map, 

and (b) those determined from the map to relate to a particular waterbody. Other LOMCs (those that 

could not be located or assigned to a particular waterbody) were not included in the scoring. 

As described above, the presence of BAD is helpful to prioritize the mapping needs of 

waterbodies. Waterbodies for which BAD were available were given a score of 10, whereas those for 

which BAD were not available were given a score of 0. BAD that required engineering investigation 

to determine its validity received a score of 5. 

Summing the scoring criteria produced a waterbody-based prioritized list of mapping needs 

involving redelineation, limited detail study, or detailed study (table 9, fig. 4) for the waterbodies 

identified by the communities during the scoping effort. For example, the redelineation of all 

waterbodies in Auburn scored as follows: 

Census-block ranking (* 3) = 7.0 * 3 = 21.0 

Community/MFMP priority = 10 (highest priority) 

Connectivity = 3 

Map age (scaled by years) = 3.5 

Map type = 3 

Number of LOMCs (* 0.5) = 1.5 

Presence of BAD = 0 

Sum = 42.0 

The highest scoring needs were city-wide redelineations requested by Auburn, Lewiston, and 

Poland. Auburn and Lewiston have 2-ft contours available that would facilitate redelineation efforts. 
22 

Table 9. Prioritized waterbody-based flood mapping needs in Androscoggin County requiring 

redelineation, limited detail study, or detailed study. 

Rank Waterbody Community CID Study type Score 

1 All Auburn 230001 Redelineation 42.0 

2 All Lewiston 230004 Redelineation 41.7 

3 All Poland 230009 Redelineation 37.4 

4 Hart Brook Lewiston 230004 Detail Study 34.7 

5 Bobbin Mill Brook Auburn 230001 Detail Study 34.4 

6 Androscoggin Lake Leeds 230003 Detail Study 34.2 

7 East Branch Royal River Durham 230002 Detail Study 32.7 

8 Garcelon Bog Lewiston 230004 Detail Study 32.2 

9 Stetson Brook Lewiston 230004 Detail Study 32.2 

10 Meadow Brook Auburn 230001 Detail Study 31.4 

11 Moose Brook Auburn 230001 Detail Study 31.4 

12 Tributary A to Little Androscoggin River Auburn 230001 Detail Study 31.4 

13 Androscoggin River Livermore Falls 230006 Redelineation 29.9 

14 Dead River (south) Leeds 230003 Detail Study 29.2 

15 Newell Brook Durham 230002 Detail Study 27.2 

16 Dead River (north) Leeds 230003 Detail Study 26.7 

17 Davis Brook Poland 230009 Limited Detail 25.4 

18 Androscoggin River Durham 230002 Redelineation 25.2 

19 Redwater Brook Livermore Falls 230006 Detail Study 24.9 

20 Runaround Pond Durham 230002 Detail Study 24.2 

21 Unnamed tributary to Runaround Pond Durham 230002 Redelineation 24.2 

22 Lower Range Pond Poland 230009 Detail Study 21.9 
Figure 4. Types of waterbody studies needed by communities in Androscoggin County.

23 
24 

Project Time and Costs for Identified Mapping Needs 

The USGS Maine Water Science Center will provide scoping-level time and cost estimates for 

the identified study needs for each water body listed in table 9. The time and cost estimates will 

include costs for hydrologic, hydraulic, and topographic data collection; analyses; and mapping, 

depending on the identified type of study needed for each water body. Detailed information about 

each waterbody being scoped, including spatial limits and affected length, will be included in the time 

and cost estimates. The time and cost estimates will be submitted to the cooperating agencies (FEMA, 

MFMP) as a separate document as set forth in the scope of work. 

Project Alternatives

Costs can be reduced by cutting back on the level of effort for the hydrologic and hydraulic 

(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.
25 

Section 3. Options for Future Mapping and DTM 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 Digital Flood Insurance Rate Maps (DFIRMs) for 

Androscoggin County. Options are presented for using these data sets in various combinations and 

supplementing them with new data sets.

DFIRMs are produced from 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 (Guidelines and Specifications). Proposed DFIRM panels 

fro Androscoggin County are shown in fig. 5.

Base Maps: Base maps are acquired from MEGIS and will be used by FEMA as a “backdrop” to 

the flood-insurance risk zones shown on the DFIRMs. 

Digital Terrain Models (DTMs): DTMs are used in conjunction with hydrologic and hydraulic 

models to interpret the limits of flood-insurance risk zones. 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 Digital Elevation Model (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.

Flood-Insurance Risk Zones: Geographic boundaries produced by FEMA and provided in digital 

format. 
Figure 5. Proposed digital flood insurance rate map panels for Androscoggin County. 

Base Map

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

depicts cultural features (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.

26 
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 10:

Table 10. Flood Insurance Rate Map (FIRM) Horizontal Accuracy. 

FIRM map scale Absolute horizontal 

accuracy at the 95-percent 

confidence level, in feet

1 in = 500 feet 19.0

1 in = 1,000 feet 38.0

1 in = 2,000 feet 45.6

MEGIS can provide digital mapping data for Androscoggin County for DFIRM production 

that meet these specifications. 

Digital Terrain Models (DTMs)

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 hydrologic 

and hydraulic models to interpret flood boundaries and can be used by the community for many other 

purposes other than flood management.

Guidelines and Specifications identify the following four types of DTMs: (1) Digital contours, 

(2) Digital Elevation Models (DEMs), (3) Mass points and breaklines, and (4) Triangulated Irregular 

Networks (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:

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

elevation interval.

Digital Elevation Model (DTM): x, y, and z coordinates of regularly spaced points that form a 

grid.

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

Triangulated Irregular Network (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 11: 

27 
28 

Table 11. National Standard for Spatial Data Accuracy (NSSDA).

NSSDA 

contour 

interval

NSSDA 90-percent 

confidence interval

NSSDA 95-percent 

confidence interval

2 feet 1 foot 1.2 feet

4 feet 2 feet 2.4 feet

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 hydrologic and hydraulic 

modeling. 

Neither USGS nor MEGIS has elevation data suitable for hydraulic modeling by detailed 

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

modeling (e.g. 2-foot or 4-foot contours) (approximate and limited-detailed studies can often be done 

with less rigorous topographic standards). Community specific topographic data such as those 

developed by Auburn and Lewiston (2-ft contours) will be used if they meet FEMA standards. New 

elevation data will be developed as necessary. 

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

communities and (2) obtaining DTM data only for selected floodplain areas as needed to support a 

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

data on a countywide basis is expensive; most of the acquired data would be outside of the floodplain 

and not needed for hydraulic analysis. If FEMA obtains new DTM data for selected areas as needed, 

keeping in mind that is most cost effective to consolidate areas, where possible, and optimizes flights, 

the unit costs could be reduced.

Flood-Insurance Risk Zones

Flood-insurance risk zones are created by FEMA to set insurance rates and manage the 

floodplain. 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. 

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

layers by MEGIS for each community participating in the National Flood Insurance Program (NFIP) 

in Maine. 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.

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. 
29 

Section 4. References Cited 

Dudley, R.W., 2004, Water Budget for Lake Auburn, Maine, May 1, 2000 through April 30, 2003: 

U.S. Geological Survey Water Scientific Investigations Report 2004–5106, 16 p. 

Federal Emergency Management Agency, 1994, Title V–National Flood Insurance Reform; available 

on the Web at URL http://www.fema.gov/pdf/nfip/riegle.pdf, accessed January 8, 2007. 

Federal Emergency Management Agency, 2006, Flood map modernization mid-course adjustment: 

accessed on December 12, 2006, at http://www.fema.gov/library/viewRecord.do?id=2195

University of Maine, 2004, Maine census data, population totals: Fogler Library, University of 

Maine, accessed on September 16, 2004, at http://www.library.umaine.edu/census/
30 

Appendices 
31 

Appendix A: Community Contacts and Best Available Data: 

Androscoggin County 
32 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Auburn, City of CID 230001 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 10/18/1995

Participating=Yes LURC: No Ordinance Date: 10/6/1997

Total No. NFIP Policies=87 No. Claims Since 1978= 54 All LOMCs: 4

Community Official Contact Information:

David Galbraith 207-333-6600

Director of 

City of Auburn

60 Court St.

Auburn ME 04210

Community Code Enforcement Contact Information:

Mark Stambach, CEO 207-333-6600

60 Court St.

Auburn ME 04210

Community Code Enforcement Contact Information:

Eric Cousens, CEO 207-333-6600

60 Court St.

Auburn ME 04210

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:
33 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Durham, Town of CID 230002 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/4/1988

Participating=Yes LURC: No Ordinance Date: 4/2/2005

Total No. NFIP Policies=13 No. Claims Since 1978= 5 All LOMCs: 1

Community Official Contact Information:

John White 207-353-2561

Selectmen

Town of Durham

630 Hallowell Rd.

Durham ME 04222

Community Code Enforcement Contact Information:

Daniel Feeney, CEO 207-353-2561

18 Baston Rd`

No Yarmouth ME 04097

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
34 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Greene, Town of CID 230475 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/3/1990

Participating=Yes LURC: No Ordinance Date: 2/20/1990

Total No. NFIP Policies=11 No. Claims Since 1978= 3 All LOMCs: 1

Community Official Contact Information:

Charles Noonan 207-946-5146

Town Manager

Town of Greene

PO Box 510

Greene ME 04236

Community Code Enforcement Contact Information:

Randy Ray, CEO 207-946-5146

239 Lane Rd.

Greene ME 04236

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
35 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Leeds, Town of CID 230003 Community Profile

Map Type: No Floodways Current FIRM/FIS Map Date: 7/16/1990

Participating=Yes LURC: No Ordinance Date: 6/1/2002

Total No. NFIP Policies=9 No. Claims Since 1978= 1 All LOMCs: 1

Community Official Contact Information:

Jane Wheeler 207-524-5171

Selectmen

Town of Leeds

PO Box 206

Leeds ME 04263

Community Code Enforcement Contact Information:

Larry Grant, CEO 207-524-5171

30 Grant Rd.

Leeds ME 04263

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
36 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Lewiston, City of CID 230004 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 9/28/1979

Participating=Yes LURC: No Ordinance Date: 6/17/1993

Total No. NFIP Policies=39 No. Claims Since 1978= 20 All LOMCs: 3

Community Official Contact Information:

James Bennett 207-784-2951

Administrator

City of Lewiston

27 Pine St.

Lewiston ME 04240

Community Code Enforcement Contact Information:

Gildace Arsenault, CEO 207-784-2951

27 Pine St.

Lewiston ME 04240

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:Jepson Brook FEMA-LOMR 8/30/95

Mapping Status:

Mapping Needs:

ND, No Data 
37 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Lisbon, Town of CID 230005 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 3/4/1985

Participating=Yes LURC: No Ordinance Date: 7/31/1999

Total No. NFIP Policies=8 No. Claims Since 1978= 6 All LOMCs: 1

Community Official Contact Information:

Curtis Lunt 207-353-3000

Town Manager

Town of Lisbon

300 Lisbon St.

Lisbon ME 04250

Community Code Enforcement Contact Information:

Gerald Samson, CEO 207-353-3000

300 Lisbon St.

Lisbon ME 04250

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
38 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Livermore Falls, Town of CID 230006 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 8/5/1991

Participating=Yes LURC: No Ordinance Date: 6/11/1997

Total No. NFIP Policies=2 No. Claims Since 1978= 3 All LOMCs: 0

Community Official Contact Information:

Martin Puckett 207-897-3321

Town Manager

Town of Livermore Falls

2 Main St.

Livermore Falls ME 04254

Community Code Enforcement Contact Information:

Kenneth Pratt, CEO 207-897-3321

2 Main St.

Livermore Falls ME 04254

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
39 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Livermore, Town of CID 230173 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/3/1990

Participating=Yes LURC: No Ordinance Date: 6/9/1999

Total No. NFIP Policies=13 No. Claims Since 1978= 2 All LOMCs: 0

Community Official Contact Information:

Kurt Schaub 207-897-3207

Selectmen

Town of Livermore

10 Crash Rd.

Livermore ME 04253

Community Code Enforcement Contact Information:

Paula Coombs, CEO 207-931-8547

PO Box 65

Livermore Falls ME 04254

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
40 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Mechanic Falls, Town of CID 230007 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/17/1990

Participating=Yes LURC: No Ordinance Date: 1/5/1998

Total No. NFIP Policies=8 No. Claims Since 1978= 6 All LOMCs: 0

Community Official Contact Information:

Dana Lee 207-345-2871

Town Manager

Town of Mechanic Falls

108 Lewiston St.

Mechanic Falls ME 04256

Community Code Enforcement Contact Information:

John Hawley, CEO 207-345-2221

PO Box 130

Mechanic Falls ME 04256

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:Range Brook (SCS 8/78)

Mapping Status:

Mapping Needs:

ND, No Data 
41 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Minot, Town of CID 230008 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/17/1990

Participating=Yes LURC: No Ordinance Date: 3/2/1991

Total No. NFIP Policies=2 No. Claims Since 1978= 0 All LOMCs: 0

Community Official Contact Information:

Dean Campbell 207-783-3650

Selectmen

Town of Minot

329 Woodman Hill Rd.

Minot ME 04258

Community Code Enforcement Contact Information:

Kenneth Pratt, CEO 207-576-1413

250 Patten Rd

Greene ME 04236

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
42 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Poland, Town of CID 230009 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/20/1996

Participating=Yes LURC: No Ordinance Date: 5/4/1996

Total No. NFIP Policies=10 No. Claims Since 1978= 0 All LOMCs: 6

Community Official Contact Information:

Richard Chick 207-998-4601

Town Manager

Town of Poland

1231 Maine St.

Poland ME 04274

Community Code Enforcement Contact Information:

Arthur Dunlap, CEO 207-998-4601

1231 Maine St.

Poland ME 04274

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:Range Brook (SCS 8/78) Worthley Brook (SCS 8/78)

Mapping Status:

Mapping Needs:

ND, No Data 
43 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Sabattus, Town of CID 230011 Community Profile

Map Type: No Floodways Current FIRM/FIS Map Date: 2/15/1980

Participating=Yes LURC: No Ordinance Date: 6/1/1996

Total No. NFIP Policies=8 No. Claims Since 1978= 1 All LOMCs: 2

Community Official Contact Information:

Tracy Fabrizio 207-375-4331

Administrator

Town of Sabattus

PO Box 190

Sabattus ME 04280

Community Code Enforcement Contact Information:

Richard Behr, CEO 207-375-8419

18 Lisbon Rd.

Sabattus ME 04280

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
44 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Turner, Town of CID 230010 Community Profile

Map Type: Floodways Current FIRM/FIS Map Date: 5/5/2003

Participating=Yes LURC: No Ordinance Date: 4/5/2003

Total No. NFIP Policies=19 No. Claims Since 1978= 6 All LOMCs: 4

Community Official Contact Information:

James Catlin 207-225-3414

Town Manager

Town of Turner

PO Box 157

Turner ME 04282

Community Code Enforcement Contact Information:

Roger Williams, CEO 207-225-3414

PO Box 91

E. Winthrop ME 04343

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:

Mapping Status:

Mapping Needs:

ND, No Data 
45 

 COMMUNITY CONTACTS AND BEST AVAILABLE DATA: ANDROSCOGGIN CTY

Wales, Town of CID 230439 Community Profile

Map Type: Unnumbered A-zone Current FIRM/FIS Map Date: 2/21/1975

Participating=Yes LURC: No Ordinance Date: 6/11/2005

Total No. NFIP Policies=1 No. Claims Since 1978= 0 All LOMCs: 0

Community Official Contact Information:

Paul Burgess 207-375-8881

Selectmen

Town of Wales

302 Centre Rd.

Wales ME 04280

Community Code Enforcement Contact Information:

Kenneth Pratt, CEO 207-576-1413

250 Patten Rd

Greene ME 04236

Maine Floodplain Mgt. Prog. Best Available Data and supporting information:

Best Available Data:Sabattus Pond BFE 248.2 NGVD per Sabattus FIS

Mapping Status:

Mapping Needs:

ND, No Data 
46 

Appendix B: Community Scoping Interview Data: Androscoggin County 
47 

SCOPING INTERVIEW DATA FOR: Auburn

CID: 230001 Council Govt: Annual Town Meeting Date:

Town Govt:

Community Representative Interviewed

David Galbraith 

Dir Planning 

Email: Tel: (207) 333-6601 Fax:

Floodplain Management Community Contact (if different from above)

Gary Johnson, Asst City Engineer; Eric Cousens, City planner/CEO. All at 

Auburn Hall, City of Auburn, 60 Court St, Auburn, ME, 04210.

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

Yes. P8 - along Andro R (LOMAs - use better topo data), Taylor Bk LOMA, 

possible elevation problem. P4 - mapping inaccurate, better local topo data 

avail.

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

Yes. P7 - need elevations in A zone near Taylor Pond, also need elevations 

updated in AE zone.

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. P15 - culverts on Meadow Bk. P12 - culvert on Moose Bk. P11 - Zone AE, 

Rt 136 culverts. P9 - culvert at Hardscrabble Rd, proposed bridge in AE zone 

over Little Andro R. P6, P4 - culvert change on Robin Mill Bk changed AE-zone

 elevations; better local topo data avail.

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

Yes. P5 - N end Taylor Pond, east shore - good topo data available. 

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

Yes. April 2006, scale 1"=600', color, digital ortho. 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

Yes. 2' contours citywide, digital. 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

Yes. Taylor Bk and Bobbin Mill Bk. 

Do you have dedicated GIS capabilities (if so, provide contact information)?

Yes. Gary Johnson, 207-333-6601 x 1138, same city address. 

Notes

Some high water marks kept, don't know who. Work with Lewiston to manage 

flood issues on Androscoggin R. No Lake Auburn issues because development not

 allowed; dam controls elevations.

Priorities: 1. Redelineation of existing elevations with latest 2-ft contour 
48 

SCOPING INTERVIEW DATA FOR: Durham

CID: 230002 Council Govt: Annual Town Meeting Date:

Town Govt: 1st Saturday April

Community Representative Interviewed

Daniel Feeney, John White 

CEO, Admin Asst 

Email: djfeeney@lisbonme.org Tel: (207) 353-3000 Fax: (207) 353-3007

Floodplain Management Community Contact (if different from above)

Phone: Daniel = 353-3000 x 122, John = 353-2561 x 203. Fax: Daniel = 353- 

3007, John = 353-5367.

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

Yes. Bowie Hill Rd (Zone A) (P10), subdivision. Swamp Rd (P5). Swamp Rd at Rt 

 9 (P5).

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

Yes. Need elevations in East Branch Royal R area (P15), Runaround Pond area 

(P15). Need better mapping delineation Androscoggin R (P15).

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. Bridge 1999, Newell Bk (Zone A)(P15); culvert planned, dam repaired 

2004, Runaround Pond (Zone A)(P15). Bridge replaced 2004, Shiloh Rd (Zone 

A)(P5), Cedar Pond Road raised 2005 (Zone AE)(P5), new culvert and bridge 

2006, Swamp Rd (Zone A)(P5).

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

No 

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

No 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

No 

Notes

Highest priorities are related to structures: (1) Rabbit Rd near East Branch 

Royal R, (2) Old Brunswick Rd at Newell Bk, (3) Swamp Rd at Rt 9. John Mann, 

surveyor, keeps high water marks.

One valid MNUSS record; the other two are duplicates. 
49 

SCOPING INTERVIEW DATA FOR: Greene

CID: 230475 Council Govt: Annual Town Meeting Date:

Town Govt: 1st weekend March

Community Representative Interviewed

Randall Ray 

CEO 

Email: ceogreene@fairpoint.net Tel: (207) 946-5146 Fax: (207) 946-2101

Floodplain Management Community Contact (if different from above)

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

No 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No. Might contact Bruce Tufts, road foreman, 946-5146. 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. Probably don't affect flood zones. P4 - unnamed trib to Hooper Bk, 

culvert replaced 2006, reduced flooding (which wasn't shown on map). Lane Rd 

(P10), town added extra culvert 2006 to prevent overtopping.

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

No. Possible along Androscoggin R. 

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

No 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

No 

Notes

Bruce Tufts might keep high water marks. 

No new mapping priorities. 
50 

SCOPING INTERVIEW DATA FOR: Leeds

CID: 230003 Council Govt: Annual Town Meeting Date:

Town Govt: 1st Saturday June

Community Representative Interviewed

Larry Grant 

CEO 

Email: leedsceo@fairpoint.net Tel: (207) 524-2754 Fax:

Floodplain Management Community Contact (if different from above)

Jane Wheeler, Admin Asst, 207-524-5171 

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

No 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. Bridge and dam on Dead River (zone AE). May affect SFHA. 

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

Yes. Off Fish Rd (Mountain View Drive), not shown in flood zone. Along Dead 

River in A zone. Lakeshore Drive (near Androscoggin Lake AE zone).

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

No 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

No 

Notes

Cover sheet shows no LOMCs, but one appears on map along Dead River 

(intersection Rt 106 and 219). Town has issues with proper boundary 

appearance on waterbodies. A high priority would be redelineation of AE zones
51 

SCOPING INTERVIEW DATA FOR: Lewiston

CID: 230004 Council Govt: Annual Town Meeting Date:

Town Govt:

Community Representative Interviewed

David Hediger 

City planner 

Email: dhediger@ci.lewiston.me.us Tel: (207) 784-2951 Fax:

Floodplain Management Community Contact (if different from above)

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

Yes. N shore No Name Pond (P5); elevations maybe OK but mapping bad, lots of 

elevation certificates. Garcelon Bog (Zone A2)(P10).

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

Yes. W side No Name Pond (Zone A)(P10). 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. Bridge at Hamel Rd washed out 2004 (P5)(Zone A3). Culvert work on W and 

S end No Name Pond (P10) probably changed boundaries (Zone A4, A). Culverts 

on Hart Bk nr Pleasant St (P10)(Zone A4).

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

Yes. Stetson Bk area, road changes, elevations and delineations possibly bad 

(Zone A12)(P10). Downtown along Androscoggin R; some elevation conflicts 

already known. Foss Rd Biz Park (P10) needs redelineation (Zone A7, B) for 

development.

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

Yes. 1997 and 2001 photos, scale not known. 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

Yes. Citywide 2-ft contours available. 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

Yes. GIS Coordinator is Jim Ward, 207-784-5753. 

Notes

Lewiston and Auburn work together on Androscoggin R issues. 

High priority is redelineation of existing elevations on local 2-ft contours; 
52 

SCOPING INTERVIEW DATA FOR: Lisbon

CID: 230005 Council Govt: Annual Town Meeting Date:

Town Govt: 3rd Monday May

Community Representative Interviewed

Gerald Samson 

Assessor/CEO 

Email: jsamson@lisbonme.org Tel: (207) 353-3000 Fax: (207) 353-3007

Floodplain Management Community Contact (if different from above)

Same. 207-353-3000 x 110 

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

Yes. Webster Rd area (P2)(Zone A) 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. Miller hydro project, 1988 - did not seem to cause flooding issues that 

were in place prior to construction.

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

No 

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

Yes. 1998 - state ice storm photos, color. 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

Yes. GIS contact is Ryan Leighton, town engineer, 207-353-3000 x 116 

Notes

Priority - adding elevations to A zones, especially in Webster Rd area (P2) 
53 

SCOPING INTERVIEW DATA FOR: Livermore Falls

CID: 230006 Council Govt: Annual Town Meeting Date:

Town Govt: 2nd Saturday June

Community Representative Interviewed

Martin Puckett 

Town manager 

Email: townmanager@hme.org Tel: (207) 897-3321 Fax: (207) 897-9397

Floodplain Management Community Contact (if different from above)

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

No 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. (P3) Redwater Bk culvert (Zone A). 

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

Yes. In-town area (P3); need better delineation of existing elevations; this 

is highest priority.

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

No 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

Yes. Contact Darrell Brown of Maine Land Development; assorted data 

throughout town.

Do you have dedicated GIS capabilities (if so, provide contact information)?

No 

Notes

Public works (207-897-3321) keeps high water marks. 
54 

SCOPING INTERVIEW DATA FOR: Poland

CID: 230009 Council Govt: Annual Town Meeting Date:

Town Govt: 1st Saturday April

Community Representative Interviewed

Arthur Dunlap 

CEO 

Email: adunlap@polandtownoffice.org Tel: (207) 998-4604 Fax: (207) 998-2002

Floodplain Management Community Contact (if different from above)

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

Yes. (P9D) Surveyed area is 5'-20' above 100-yr flood elevation (LOMA exists). 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

Yes. 2001, dam was replaced (P8, Lower Range Pond); same sill elevation, but 

gates were removed; no adjusting spillway any more. P8, 2007, Middle Range 

Pond dam may be replaced; maintain same elevation? P16, dam outlet from Estes

Bog may be replaced in the next decade.

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

Yes. Most panels, highest priority - need improved map scale/delineations. 

Flooding is not an issue, but knowing where boundaries are IS an issue.

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

No 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

No. Hoping to add capability in 2 yrs or less. 

Notes
55 

SCOPING INTERVIEW DATA FOR: Turner

CID: 230010 Council Govt: Annual Town Meeting Date:

Town Govt: April

Community Representative Interviewed

James Catlin 

Town manager 

Email: manager@megalink.net Tel: (207) 225-3414 Fax: (207) 225-3100

Floodplain Management Community Contact (if different from above)

Roger Williams, CEO 

Known problems with flood maps for your community

Do you have specific areas that don't flood (1% chance) but are currently in the floodplain?

No 

Do you have specific areas that flood (1% chance) but are not mapped in the floodplain?

No 

Note any significant changes in hydraulic structures (bridges, culverts, dams)

No 

Do you have (or are you proposing) high-development areas where you need new or restudied 

flood elevations or improved map scale?

No 

Community Resources

Do you have aerial photography (or plans for any) (flight date, scale, color/bw)?

Yes. Sewall, 2001; MEGIS should have these data. 

Do you have any topographic data (or plans for collecting) (digital terrain, contour maps)?

No 

Do you have any data related to hydrologic/hydraulic studies (or plans for such studies)?

No 

Do you have dedicated GIS capabilities (if so, provide contact information)?

No. Hope to implement ArcView in 2007. Contact Sandi Philipon. 

Notes

High water marks kept by Eva Leavitt (town clerk) and Ross Gagne (EMA). 

Will need at least 2 paper copies of digital FIRMS when available. MNUSS data 
56 

Appendix C: Existing MNUSS Data Entries: Androscoggin County 
57 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

DURHAM, TOWN OF CID 230002 MNUSS Summary

MNUSS NeedID 100000000010208 Date of Need: 10/13/1997

EAST BRANCH BROOK Panel: 2300020015B 

Need Desc: Changes to floodplain width Length: 6.5 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes: FLOODPLAIN NEEDS TO BE REDELINEATED AND BFE'S ADDED. 

MFMP Comments: Requires restudy 

MNUSS NeedID 100000000010208 Date of Need: 10/13/1997

EAST BRANCH BROOK Panel: 2300020015B 

Need Desc: Changes to floodplain width Length: 6.5 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes: FLOODPLAIN NEEDS TO BE REDELINEATED AND BFE'S ADDED. 

MFMP Comments: Requires restudy 
58 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

DURHAM, TOWN OF CID 230002 MNUSS Summary

MNUSS NeedID 100000000010208 Date of Need: 10/13/1997

EAST BRANCH BROOK Panel: 2300020015B 

Need Desc: Changes to floodplain width Length: 6.5 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes: FLOODPLAIN NEEDS TO BE REDELINEATED AND BFE'S ADDED. 

MFMP Comments: Requires restudy 
59 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

TURNER, TOWN OF CID 230010 MNUSS Summary

MNUSS NeedID 100000000010283 Date of Need: 12/11/1997

Nezinscot River Panel: 2300100006B 

Need Desc: Changes to hydraulic analysis Length: 5.21 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes: THE TOWN WOULD VERY MUCH LIKE A REVISION. THEY WANT HIGH 

VELOCITY A-ZONES, ADDED ELS. 

MFMP Comments: Floodway needed 

MNUSS NeedID 100000000010283 Date of Need: 12/11/1997

Nezinscot River Panel: 2300100006B 

Need Desc: Changes to hydraulic analysis Length: 5.21 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes: THE TOWN WOULD VERY MUCH LIKE A REVISION. THEY WANT HIGH 

VELOCITY A-ZONES, ADDED ELS. 

MFMP Comments: Floodway needed 
60 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

TURNER, TOWN OF CID 230010 MNUSS Summary

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100090C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100085C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 
61 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

TURNER, TOWN OF CID 230010 MNUSS Summary

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100080C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100043C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 
62 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

TURNER, TOWN OF CID 230010 MNUSS Summary

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100041C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100035C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 
63 

 EXISTING MNUSS ENTRIES FOR ANDROSCOGGIN CTY

TURNER, TOWN OF CID 230010 MNUSS Summary

MNUSS NeedID 100000000010282 Date of Need: 12/11/1997

ANDROSCOGGIN RIVER Panel: 2300100030C 

Need Desc: Changes to hydrologic conditions Length: 14.2 mi

Anticipated BFE Change: Increased By Greater Than 5 feet 

Location of Floodplain:

Need Notes:

MFMP Comments: Not valid FIS 2003 
64 

Appendix D: Attachments 
To: Tom Marcotte, CFM 

State Planning Office 

Floodplain Management Program 

184 State Street, 38 State House Station 

Augusta, Maine 04333-0038 

Fax Number: (207) 287-6489

FAX back date: ____/____ /2006

Sign-up FAX From:

Community Name: 

_________________________ 

Primary Community Contact 

For Floodplain Management: 

Name:_______________Ph #:________

Regarding: Attendance at Flood Map Modernization Scoping Meeting 

Comments: 

The following community official(s) will attend the scoping meeting indicated below: 

Androscoggin County: AVCOG Office, 125 Manley Rd. Auburn. December 12th 2006 

From 12:00 P.M. to 4:00 P.M. 

Name: Title and Phone Number 

1) _________________________________ , __________________________________ 

2) _________________________________ , ___________________________________ 

3) _________________________________ , ___________________________________ 

4) _________________________________ , ___________________________________ 

65 
STA TE O F MAINE

EXECUTIVE DEPARTMENT

MAINE STATE PLANNING OFFICE

38 STATE HOUSE STATION

AUGUSTA, ME 04333 

OFFICE LOCATED AT: 184 STATE STREET 

PHONE: (207) 287-3261 INTERNET : www.maine.gov/spo FAX: (207) 287-6489 

 

, Code Enforcement Officer November 14, 2006 

Town of 

Street 

, Maine 04 

Dear 

Subject: Important Meeting on Updating Your Community’s Flood Maps 

Flooding has caused more than $150,000,000 in damages to Maine’s cities and towns during the past twenty 

years. Coastal and riverine floods impact the lives of our citizens almost annually. Recently completed 

County Hazard Mitigation Plans identify flooding as the foremost natural hazard in the majority of our sixteen 

counties. 

When the National Flood Insurance Program (NFIP) was established in 1968 it provided for a three part 

approach to reducing damage from flooding. The first part was the establishment of a flood insurance 

program overseen by the Flood Insurance Administration (FIA). The second part was the identification and 

mapping of the flood hazard. The third part was a requirement for communities that wanted to participate in 

the NFIP to adopt and enforce floodplain management regulations designed to control development in flood 

prone areas. Of the three parts of the NFIP the second component, mapping the hazard, is the glue that holds 

the program together. Communities cannot control development if they do not know what areas of their 

municipality are threatened by flooding. Flood insurance cannot be provided equitably unless insurance 

agents are able to determine the level of risk for a specific property. 

Nationwide the current Flood Insurance Rate Maps (FIRM) are aging and some states, such as Maine, have 

maps that are on average more than twenty years old. Congress realized that this was a problem and in 2004 

provided funding to FEMA to begin a comprehensive updating of the maps. This updating effort is called 

“Flood Map Modernization”, Map Mod for short. 

Maine has actively participated in Map Mod since its inception. To date we have remapping projects 

underway in York, Cumberland and Oxford counties and have met with community officials to discuss their 

flood mapping needs in Kennebec and Somerset counties. During this fall and winter we will be gathering 

information on mapping issues and concerns in Penobscot, Lincoln, Hancock and Androscoggin counties. 

These meetings are designed to give municipal officials a chance to share with us any problems they have with 

their FIRMs and are called “Scoping Meetings” by FEMA. 

Thursday, December 12th from 12:00 PM to 4:00 PM we will meet with officials from Androscoggin 

County communities at the AVCOG Office, located at 125 Manley Rd., Auburn. 

66 
During the Scoping Meeting we will meet with communities and review their current FIRM and 

discuss possible changes to the map to improve floodplain management at the local level. 

We have attached three documents to this letter. One document is a FAX-Back form to allow you 

to sign up for the meeting. We ask that you reply to us by November 29th. The second document is 

a brief overview of the Map Mod process which can also be seen at our web-site 

www.maine.gov/spo/flood and the third document is the agenda for the meeting. 

In preparation for the Scoping Meeting, we would like your community to identify flood mapping 

issues to be considered for study or review. It will be helpful to have the flooding issues prioritized

and for you to be able to locate the areas of concern on the flood maps. In addition, it will also be 

beneficial to bring a brief narrative describing the reasons you would like to request that changes be 

made to the maps. This information will help us help you at the meeting and assist us in finalizing

the scope of work necessary to update the maps. If your community is unable to attend the Scoping

Meeting, this information may also be sent to the lead scoping agency working in collaboration with 

the Maine Floodplain Management Program and FEMA: USGS, 196 Whitten Road, Augusta, ME

04330. 

If you have any questions regarding the Scoping Meeting or need additional information please feel 

free to contact Tom Marcotte at the State Planning Office (207-287-8051), Rob Dudley at USGS

(207-622-8201 ext. 115) or Chuck Schalk at USGS (207-622-8201 ext. 111). 

Thank you for your assistance with Map Mod. 

Tom Marcotte, CFM G. Fred Vanderschmidt IV. CFM 

Maine Floodplain Management Program FEMA Region I 

Rob Dudley, P.E. 

USGS Maine Water Science Center 

67 
68 
69 
70 

Appendix E: Census Block-Group Data 

[CID, community identification number.] 
71 

Census block 

group 

CID Community 

name 

Area, in 

square 

miles 

Population 

density 

Population 

density 

score 

Population 

growth 

Population 

growth 

score 

230010101001 230001 Auburn 0.15 5,553.67 8.95 0.00 0.00 

230010101002 230001 Auburn 0.27 3,588.53 8.66 0.00 0.00 

230010102001 230001 Auburn 0.38 2,548.82 8.43 0.00 0.00 

230010102002 230001 Auburn 0.82 2,247.79 8.34 0.00 0.00 

230010102009 230001 Auburn 20.23 92.55 6.18 0.00 0.00 

230010103001 230001 Auburn 0.11 10,580.72 9.39 0.00 0.00 

230010103002 230001 Auburn 0.35 4,059.98 8.74 0.00 0.00 

230010104001 230001 Auburn 0.62 2,435.66 8.39 0.00 0.00 

230010104002 230001 Auburn 0.27 2,552.32 8.43 0.00 0.00 

230010105001 230001 Auburn 0.12 7,736.88 9.18 0.00 0.00 

230010105002 230001 Auburn 0.20 5,642.25 8.96 0.00 0.00 

230010106001 230001 Auburn 1.13 972.02 7.77 0.00 0.00 

230010106002 230001 Auburn 22.83 82.14 6.10 0.00 0.00 

230010107001 230001 Auburn 1.12 938.83 7.75 0.00 0.00 

230010107002 230001 Auburn 10.38 189.80 6.67 0.00 0.00 

230010108001 230001 Auburn 0.83 2,237.93 8.34 0.00 0.00 

230010108002 230001 Auburn 4.13 479.31 7.29 0.00 0.00 

230010108009 230001 Auburn 1.84 61.53 5.91 0.00 0.00 

230010201001 230004 Lewiston 0.12 8315.97 9.23 0.00 0.00 

230010201002 230004 Lewiston 0.19 1,661.95 8.14 0.00 0.00 

230010202001 230004 Lewiston 0.12 5,169.37 8.90 0.00 0.00 

230010202002 230004 Lewiston 0.28 2,370.64 8.38 0.00 0.00 

230010203001 230004 Lewiston 0.33 8,278.45 9.22 0.00 0.00 

230010203002 230004 Lewiston 0.19 11,101.50 9.42 0.00 0.00 

230010203003 230004 Lewiston 0.10 21,985.32 9.88 0.00 0.00 

230010204001 230004 Lewiston 0.47 5,183.94 8.91 0.00 0.00 

230010204002 230004 Lewiston 0.15 5,923.99 9.00 0.00 0.00 

230010205001 230004 Lewiston 0.22 4,956.31 8.88 0.00 0.00 

230010205002 230004 Lewiston 0.35 4,138.20 8.75 0.00 0.00 

230010205003 230004 Lewiston 0.66 1,991.75 8.26 0.00 0.00 

230010206001 230004 Lewiston 0.39 3,612.26 8.66 0.00 0.00 

230010206002 230004 Lewiston 9.70 134.37 6.43 0.00 0.00 

230010207001 230004 Lewiston 0.78 2,120.74 8.30 0.00 0.00 

230010207002 230004 Lewiston 1.61 2,033.69 8.27 0.00 0.00 

230010208001 230004 Lewiston 1.04 2,981.18 8.53 0.00 0.00 

230010208002 230004 Lewiston 13.55 302.30 6.98 0.00 0.00 

230010209001 230004 Lewiston 0.45 2,061.99 8.28 0.00 0.00 

230010209002 230004 Lewiston 0.70 2,853.23 8.50 0.00 0.00 

230010209009 230004 Lewiston 3.81 313.25 7.01 0.00 0.00 

230010301002 230005 Lisbon 1.88 1,162.12 7.89 0.00 0.00 

230010301009 230005 Lisbon 13.83 159.85 6.55 0.00 0.00 

230010302001 230005 Lisbon 1.84 1,209.43 7.92 0.00 0.00 

230010302002 230005 Lisbon 1.25 1,322.34 7.98 0.00 0.00 

230010302009 230005 Lisbon 5.40 148.99 6.50 0.00 0.00 

230010400001 230002 Durham 17.48 70.30 6.00 18.97 6.86 

230010400002 230002 Durham 21.26 101.22 6.24 18.97 6.86 

230010410001 230009 Poland 14.58 88.78 6.15 12.07 6.01 

230010410002 230009 Poland 23.71 100.60 6.24 12.07 6.01 

230010410003 230009 Poland 8.88 133.68 6.43 12.07 6.01 
72 

230010415001 230008 Minot 29.90 75.19 6.04 35.10 8.02 

230010415002 230007 Mechanic Falls 8.07 174.94 6.61 7.50 5.11 

230010415003 230007 Mechanic Falls 3.09 559.12 7.40 7.50 5.11 

230010420001 230010 Turner 18.44 65.30 5.95 15.23 6.45 

230010420002 230010 Turner 11.69 110.63 6.30 15.23 6.45 

230010420003 230010 Turner 10.75 80.73 6.09 15.23 6.45 

230010420004 230010 Turner 21.81 73.69 6.03 15.23 6.45 

230010430001 230173 Livermore 20.44 56.74 5.85 8.00 5.23 

230010430002 230173 Livermore 18.96 49.88 5.76 8.00 5.23 

230010440001 230006 Livermore Falls 0.50 2,252.55 8.34 0.00 0.00 

230010440002 230006 Livermore Falls 3.67 245.04 6.84 0.00 0.00 

230010440003 230006 Livermore Falls 16.26 74.36 6.03 0.00 0.00 

230010450001 230003 Leeds 43.45 46.06 5.71 19.89 6.95 

230010460001 230475 Greene 13.89 129.60 6.41 11.34 5.89 

230010460002 230475 Greene 14.22 104.88 6.27 11.34 5.89 

230010460003 230475 Greene 7.21 108.85 6.29 11.34 5.89 

230010465001 230011 Sabattus 1.54 700.42 7.55 21.37 7.09 

230010465002 230011 Sabattus 4.20 195.89 6.69 21.37 7.09 

230010465003 230011 Sabattus 20.94 123.42 6.38 21.37 7.09 

230010465004 230439 Wales 17.10 77.32 6.06 8.09 5.26 

Minimum 0.10 46.06 5.71 0.00 0.00 

Maximum 43.45 21,985.32 9.88 35.10 8.02 

Mean 7.21 2,308.60 7.51 4.74 1.99 

Median 1.84 938.83 7.75 0.00 0.00 
73 

Census block 

group 

Community 

identification 

number 

Community 

name 

Housing 

units 

density 

Housing units 

density score Claims density Claims density score 

230010101001 230001 Auburn 3,527.97 8.78 0.00 0.00 

230010101002 230001 Auburn 2,174.98 8.37 60.31 9.03 

230010102001 230001 Auburn 1,481.39 8.05 2.60 5.77 

230010102002 230001 Auburn 1,140.91 7.83 1.22 4.98 

230010102009 230001 Auburn 35.99 4.93 0.05 1.66 

230010103001 230001 Auburn 5,384.33 9.13 0.00 0.00 

230010103002 230001 Auburn 1,895.60 8.26 0.00 0.00 

230010104001 230001 Auburn 903.24 7.64 1.62 5.28 

230010104002 230001 Auburn 986.55 7.71 0.00 0.00 

230010105001 230001 Auburn 3,604.29 8.80 68.17 9.16 

230010105002 230001 Auburn 2,927.63 8.62 0.00 0.00 

230010106001 230001 Auburn 385.44 6.92 4.43 6.32 

230010106002 230001 Auburn 32.07 4.84 0.09 2.25 

230010107001 230001 Auburn 393.93 6.94 2.68 5.80 

230010107002 230001 Auburn 78.29 5.59 0.10 2.35 

230010108001 230001 Auburn 933.78 7.66 0.00 0.00 

230010108002 230001 Auburn 228.99 6.49 0.24 3.31 

230010108009 230001 Auburn 31.58 4.83 0.00 0.00 

230010201001 230004 Lewiston 6,032.83 9.23 16.67 7.70 

230010201002 230004 Lewiston 1,090.82 7.79 15.44 7.62 

230010202001 230004 Lewiston 2,921.82 8.62 0.00 0.00 

230010202002 230004 Lewiston 1,181.77 7.86 0.00 0.00 

230010203001 230004 Lewiston 2,152.70 8.36 0.00 0.00 

230010203002 230004 Lewiston 6,129.07 9.24 0.00 0.00 

230010203003 230004 Lewiston 13,999.80 9.93 0.00 0.00 

230010204001 230004 Lewiston 2,668.30 8.54 0.00 0.00 

230010204002 230004 Lewiston 3,401.83 8.75 41.23 8.64 

230010205001 230004 Lewiston 2,375.75 8.45 0.00 0.00 

230010205002 230004 Lewiston 1,845.19 8.24 2.83 5.86 

230010205003 230004 Lewiston 1,033.77 7.75 10.61 7.23 

230010206001 230004 Lewiston 1,574.18 8.10 0.00 0.00 

230010206002 230004 Lewiston 58.53 5.34 0.00 0.00 

230010207001 230004 Lewiston 920.83 7.65 0.00 0.00 

230010207002 230004 Lewiston 940.16 7.67 0.62 4.28 

230010208001 230004 Lewiston 1,243.84 7.90 0.00 0.00 

230010208002 230004 Lewiston 122.41 5.96 0.00 0.00 

230010209001 230004 Lewiston 821.68 7.56 2.23 5.61 

230010209002 230004 Lewiston 1,076.74 7.78 1.43 5.15 

230010209009 230004 Lewiston 136.54 6.05 0.00 0.00 

230010301002 230005 Lisbon 504.07 7.15 0.53 4.12 

230010301009 230005 Lisbon 67.96 5.47 0.00 0.00 

230010302001 230005 Lisbon 494.30 7.13 0.00 0.00 

230010302002 230005 Lisbon 531.82 7.19 0.00 0.00 

230010302009 230005 Lisbon 60.71 5.37 0.00 0.00 

230010400001 230002 Durham 26.26 4.67 0.00 0.00 

230010400002 230002 Durham 37.54 4.97 0.05 1.61 

230010410001 230009 Poland 52.00 5.24 0.00 0.00 

230010410002 230009 Poland 43.40 5.09 0.00 0.00 

230010410003 230009 Poland 59.57 5.36 0.00 0.00 
74 

230010415001 230008 Minot 27.56 4.71 0.00 0.00 

230010415002 230007 Mechanic Falls 68.81 5.48 0.00 0.00 

230010415003 230007 Mechanic Falls 222.42 6.46 0.32 3.61 

230010420001 230010 Turner 24.62 4.62 0.05 1.75 

230010420002 230010 Turner 46.46 5.15 0.00 0.00 

230010420003 230010 Turner 32.74 4.86 0.00 0.00 

230010420004 230010 Turner 28.80 4.75 0.05 1.58 

230010430001 230173 Livermore 30.23 4.79 0.00 0.00 

230010430002 230173 Livermore 23.62 4.58 0.00 0.00 

230010440001 230006 Livermore Falls 1,123.26 7.82 0.00 0.00 

230010440002 230006 Livermore Falls 126.20 5.99 0.00 0.00 

230010440003 230006 Livermore Falls 29.58 4.77 0.00 0.00 

230010450001 230003 Leeds 19.70 4.43 0.00 0.00 

230010460001 230475 Greene 54.50 5.28 0.00 0.00 

230010460002 230475 Greene 44.25 5.11 0.00 0.00 

230010460003 230475 Greene 40.77 5.04 0.00 0.00 

230010465001 230011 Sabattus 338.20 6.81 0.65 4.33 

230010465002 230011 Sabattus 69.11 5.48 0.00 0.00 

230010465003 230011 Sabattus 49.27 5.20 0.00 0.00 

230010465004 230439 Wales 31.00 4.81 0.00 0.00 

Minimum 19.70 4.43 0.00 0.00 

Maximum 13,999.80 9.93 68.17 9.16 

Mean 1,191.08 6.69 3.39 1.81 

Median 385.44 6.92 0.00 0.00 
75 

Census block 

group 

Community 

identification 

number 

Community 

name 

Repetitive 

loss claim 

density 

Repetitive loss 

claim density 

score 

Repetitive 

loss property 

density 

Repetitive loss 

property 

density score 

230010101001 230001 Auburn 0.00 0.00 0.00 0.00 

230010101002 230001 Auburn 11.31 7.30 3.77 7.05 

230010102001 230001 Auburn 0.00 0.00 0.00 0.00 

230010102002 230001 Auburn 0.00 0.00 0.00 0.00 

230010102009 230001 Auburn 0.00 0.00 0.00 0.00 

230010103001 230001 Auburn 0.00 0.00 0.00 0.00 

230010103002 230001 Auburn 0.00 0.00 0.00 0.00 

230010104001 230001 Auburn 0.00 0.00 0.00 0.00 

230010104002 230001 Auburn 0.00 0.00 0.00 0.00 

230010105001 230001 Auburn 0.00 0.00 0.00 0.00 

230010105002 230001 Auburn 0.00 0.00 0.00 0.00 

230010106001 230001 Auburn 3.54 6.10 0.89 5.33 

230010106002 230001 Auburn 0.00 0.00 0.00 0.00 

230010107001 230001 Auburn 0.00 0.00 0.00 0.00 

230010107002 230001 Auburn 0.19 3.07 0.10 2.69 

230010108001 230001 Auburn 0.00 0.00 0.00 0.00 

230010108002 230001 Auburn 0.00 0.00 0.00 0.00 

230010108009 230001 Auburn 0.00 0.00 0.00 0.00 

230010201001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010201002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010202001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010202002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010203001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010203002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010203003 230004 Lewiston 0.00 0.00 0.00 0.00 

230010204001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010204002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010205001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010205002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010205003 230004 Lewiston 0.00 0.00 0.00 0.00 

230010206001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010206002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010207001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010207002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010208001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010208002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010209001 230004 Lewiston 0.00 0.00 0.00 0.00 

230010209002 230004 Lewiston 0.00 0.00 0.00 0.00 

230010209009 230004 Lewiston 0.00 0.00 0.00 0.00 

230010301002 230005 Lisbon 0.00 0.00 0.00 0.00 

230010301009 230005 Lisbon 0.00 0.00 0.00 0.00 

230010302001 230005 Lisbon 0.00 0.00 0.00 0.00 

230010302002 230005 Lisbon 0.00 0.00 0.00 0.00 

230010302009 230005 Lisbon 0.00 0.00 0.00 0.00 

230010400001 230002 Durham 0.00 0.00 0.00 0.00 

230010400002 230002 Durham 0.00 0.00 0.00 0.00 

230010410001 230009 Poland 0.00 0.00 0.00 0.00 

230010410002 230009 Poland 0.00 0.00 0.00 0.00 

230010410003 230009 Poland 0.00 0.00 0.00 0.00 
76 

230010415001 230008 Minot 0.00 0.00 0.00 0.00 

230010415002 230007 Mechanic Falls 0.00 0.00 0.00 0.00 

230010415003 230007 Mechanic Falls 0.65 4.33 0.32 4.13 

230010420001 230010 Turner 0.00 0.00 0.00 0.00 

230010420002 230010 Turner 0.00 0.00 0.00 0.00 

230010420003 230010 Turner 0.00 0.00 0.00 0.00 

230010420004 230010 Turner 0.00 0.00 0.00 0.00 

230010430001 230173 Livermore 0.00 0.00 0.00 0.00 

230010430002 230173 Livermore 0.00 0.00 0.00 0.00 

230010440001 230006 Livermore Falls 0.00 0.00 0.00 0.00 

230010440002 230006 Livermore Falls 0.00 0.00 0.00 0.00 

230010440003 230006 Livermore Falls 0.00 0.00 0.00 0.00 

230010450001 230003 Leeds 0.00 0.00 0.00 0.00 

230010460001 230475 Greene 0.00 0.00 0.00 0.00 

230010460002 230475 Greene 0.00 0.00 0.00 0.00 

230010460003 230475 Greene 0.00 0.00 0.00 0.00 

230010465001 230011 Sabattus 0.00 0.00 0.00 0.00 

230010465002 230011 Sabattus 0.00 0.00 0.00 0.00 

230010465003 230011 Sabattus 0.00 0.00 0.00 0.00 

230010465004 230439 Wales 0.00 0.00 0.00 0.00 

Minimum 0.00 0.00 0.00 0.00 

Maximum 11.31 7.30 3.77 7.05 

Mean 0.23 0.30 0.07 0.28 

Median 0.00 0.00 0.00 0.00 
77 

Census block 

group 

Community 

identification 

number 

Community 

name 

Policies 

density 

Policies 

density score Disasters Disasters score 

Final census 

block group 

score 

230010101001 230001 Auburn 0.00 0.00 14 8.24 25.97 

230010101002 230001 Auburn 60.31 8.56 14 8.24 57.20 

230010102001 230001 Auburn 10.41 7.19 14 8.24 37.67 

230010102002 230001 Auburn 1.22 5.52 14 8.24 34.91 

230010102009 230001 Auburn 0.05 3.03 14 8.24 24.04 

230010103001 230001 Auburn 0.00 0.00 14 8.24 26.76 

230010103002 230001 Auburn 0.00 0.00 14 8.24 25.23 

230010104001 230001 Auburn 1.62 5.75 14 8.24 35.29 

230010104002 230001 Auburn 3.74 6.39 14 8.24 30.77 

230010105001 230001 Auburn 68.17 8.65 14 8.24 44.02 

230010105002 230001 Auburn 0.00 0.00 14 8.24 25.82 

230010106001 230001 Auburn 9.75 7.14 14 8.24 47.82 

230010106002 230001 Auburn 0.13 3.79 14 8.24 25.22 

230010107001 230001 Auburn 0.89 5.28 14 8.24 34.01 

230010107002 230001 Auburn 0.39 4.63 14 8.24 33.23 

230010108001 230001 Auburn 10.86 7.22 14 8.24 31.46 

230010108002 230001 Auburn 5.82 6.74 14 8.24 32.06 

230010108009 230001 Auburn 0.54 4.90 14 8.24 23.86 

230010201001 230004 Lewiston 0.00 0.00 14 8.24 34.39 

230010201002 230004 Lewiston 10.29 7.18 14 8.24 38.96 

230010202001 230004 Lewiston 0.00 0.00 14 8.24 25.76 

230010202002 230004 Lewiston 7.10 6.89 14 8.24 31.37 

230010203001 230004 Lewiston 0.00 0.00 14 8.24 25.82 

230010203002 230004 Lewiston 0.00 0.00 14 8.24 26.90 

230010203003 230004 Lewiston 0.00 0.00 14 8.24 28.05 

230010204001 230004 Lewiston 0.00 0.00 14 8.24 25.69 

230010204002 230004 Lewiston 54.98 8.48 14 8.24 43.10 

230010205001 230004 Lewiston 0.00 0.00 14 8.24 25.56 

230010205002 230004 Lewiston 0.00 0.00 14 8.24 31.08 

230010205003 230004 Lewiston 13.64 7.40 14 8.24 38.87 

230010206001 230004 Lewiston 0.00 0.00 14 8.24 25.00 

230010206002 230004 Lewiston 0.31 4.46 14 8.24 24.47 

230010207001 230004 Lewiston 0.00 0.00 14 8.24 24.19 

230010207002 230004 Lewiston 1.86 5.85 14 8.24 34.31 

230010208001 230004 Lewiston 0.96 5.34 14 8.24 30.01 

230010208002 230004 Lewiston 0.52 4.86 14 8.24 26.03 

230010209001 230004 Lewiston 0.00 0.00 14 8.24 29.68 

230010209002 230004 Lewiston 4.28 6.50 14 8.24 36.17 

230010209009 230004 Lewiston 0.00 0.00 14 8.24 21.29 

230010301002 230005 Lisbon 2.13 5.96 14 8.24 33.36 

230010301009 230005 Lisbon 0.14 3.87 14 8.24 24.12 

230010302001 230005 Lisbon 0.00 0.00 14 8.24 23.29 

230010302002 230005 Lisbon 0.80 5.20 14 8.24 28.61 

230010302009 230005 Lisbon 0.00 0.00 14 8.24 20.11 

230010400001 230002 Durham 0.29 4.40 14 8.24 30.16 

230010400002 230002 Durham 0.28 4.39 14 8.24 32.30 

230010410001 230009 Poland 0.48 4.80 14 8.24 30.44 

230010410002 230009 Poland 0.04 2.91 14 8.24 28.48 

230010410003 230009 Poland 0.34 4.53 14 8.24 30.56 
78 

230010415001 230008 Minot 0.07 3.27 14 8.24 30.28 

230010415002 230007 Mechanic 0.12 3.75 14 8.24 29.18 

230010415003 230007 Mechanic 2.27 6.01 14 8.24 45.28 

230010420001 230010 Turner 0.16 3.96 14 8.24 30.96 

230010420002 230010 Turner 0.34 4.54 14 8.24 30.67 

230010420003 230010 Turner 0.47 4.77 14 8.24 30.40 

230010420004 230010 Turner 0.37 4.59 14 8.24 31.63 

230010430001 230173 Livermore 0.15 3.88 14 8.24 27.98 

230010430002 230173 Livermore 0.42 4.70 14 8.24 28.51 

230010440001 230006 Livermore 0.00 0.00 14 8.24 24.40 

230010440002 230006 Livermore 1.09 5.44 14 8.24 26.50 

230010440003 230006 Livermore 0.00 0.00 14 8.24 19.04 

230010450001 230003 Leeds 0.18 4.05 14 8.24 29.38 

230010460001 230475 Greene 0.50 4.84 14 8.24 30.65 

230010460002 230475 Greene 0.07 3.31 14 8.24 28.81 

230010460003 230475 Greene 0.28 4.37 14 8.24 29.83 

230010465001 230011 Sabattus 1.95 5.89 14 8.24 39.90 

230010465002 230011 Sabattus 0.00 0.00 14 8.24 27.49 

230010465003 230011 Sabattus 0.10 3.54 14 8.24 30.44 

230010465004 230439 Wales 0.00 0.00 14 8.24 24.36 

Minimum 0.00 0.00 14 8.24 19.04 

Maximum 68.17 8.65 14 8.24 57.20 

Mean 4.07 3.60 14 8.24 30.42 

Median 0.28 4.39 14 8.24 29.83