Federal Emergency Management Agency
20080828
DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MIDDLESEX COUNTY, CONNECTICUT (ALL JURISDICTIONS)
FEMA-DFIRM-Final
Washington, DC
Federal Emergency Management Agency
http://www.fema.gov/msc
Federal Emergency Management Agency
20080828
FEMA CASE 06-01-B041S
The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the State Plane projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12000.
The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards," Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP.
The DFIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital FIS database that serves to archive the information collected during the FIS.
20080828
FIRM and FIS Effective Date
Unknown
-72.94
-72.19
41.81
41.06
ISO 19115 Topic Category
Hydrology
Environment
Inland Waters
Structure
Transportation
Elevation
oceans
FEMA NFIP Topic Category
FEMA Flood Hazard Zone
DFIRM Database
DFIRM
Special Flood Hazard Area
Digital Flood Insurance Rate Map
CBRS
Coastal Barrier Resources System
Riverine Flooding
Coastal Flooding
Oceans
NFIP
Base Flood Elevation
SFHA
Flood Insurance Rate Map
FIRM
Floodway
None
REGION 01
STATE CT
COUNTY MIDDLESEX
COUNTY-FIPS 09007
COMMUNITY Middlesex County All Jurisdictions
FEMA-CID 09007C
None
The hardcopy FIRM and DFIRM and the accompanying FISs are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78).
These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. However the hardcopy flood maps and flood profiles are the authoritative documents for the NFIP.
Acknowledgement of FEMA would be appreciated in products derived from these data.
Federal Emergency Management Agency
mailing
500 C Street, S.W.
Washington
District of Columbia
20472
USA
1-800-358-9616
http://www.fema.gov/msc
Original data development environment varies. Finishing of the data is done using ESRI's ARC/INFO software.
Federal Emergency Management Agency
20080828
Flood Insurance Rate Map, MIDDLESEX COUNTY, CONNECTICUT (ALL JURISDICTIONS)
Map
Washington, DC
Federal Emergency Management Agency
http://www.fema.gov/msc
Federal Emergency Management Agency
20080828
Flood Insurance Study, MIDDLESEX COUNTY, CONNECTICUT (ALL JURISDICTIONS)
Document
Washington, DC
Federal Emergency Management Agency
http://www.fema.gov/msc
Federal Emergency Management Agency
20080828
Raster DFIRM, MIDDLESEX COUNTY, CONNECTICUT (ALL JURISDICTIONS)
raster digital data
Washington, DC
Federal Emergency Management Agency
http://www.fema.gov/msc
The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hard copy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Attribute accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic System.
Independent quality control testing of FEMA's DFIRM database was also performed.
To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the FIS report that accompanies this DFIRM database. Users should be aware that BFEs shown in the S_BFE table represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS report must be used in conjunction with the FIRM for purposes of construction and/or floodplain management. The 1-percent-annual-chance water-surface elevations shown in the S_XS table match the regulatory elevations shown in the FIS report.
When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot.
Data contained in the DFIRM Database files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place.
Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.
The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Horizontal accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system.
Independent quality control testing of FEMA's DFIRM database was also performed.
The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Vertical accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system.
Independent quality control testing of FEMA's DFIRM database was also performed.
James W. Sewall Company
1997
City of Middletown Mapping and Topographic map of the Town of Cromwell
Vector Digital Data
City of Middletown, CT and Town of Cromwell, CT
James W. Sewall Company
Data was obtained from Dewberry which was digitized from the FEMA FIRM.
8888
CD-ROM
19970401
Publication Date
BASE10
Spatial and attribute information for locations of Flood Hazard lines and also Transportation features.
State of Connecticut, Department of Environmental Protection
19940101
Town_Connecticut_Line Shapefile
Vector Digital Data
Hartford, CT
State of Connecticut Environmental Protection Agency
The USGS is the collector of the data (compiler). The State of Connecticut, Department of Environmental Protection is the creator and maintainer of the data layer (editor) and producer (publisher) of this information for use. The 2005 Edition essentially includes the same set of geographic features published in 1994. However, the 2005 Edition differs from information published in 1994 primarily as a result of minor corrections and improvements to feature geometry and feature attribute information. Some feature attribute information (data fields) have been slightly modified and made easier to use. This layer includes information that is relatively static and does not change over time. Data is not updated. Data compiled at 1:24,000 scale.
24000
Website
20050401
Publication Date
BASE11
Spatial and attribute information for town political boundaries based upon USGS 7.5 minute quadrangle maps.
State of Connecticut Department of Environmental Protection
20041101
DEP_Property Shapefile
Vector Digital Data
Hartford, CT
Department of Environmental Protection
DEP Property is a polygon feature-based layer that includes all land owned in fee simple interest by the State of Connecticut Department of Environmental Protection. This layer is based on information that was collected and mapped at various scales and at different levels of accuracy. Generally, partial interests such as easements or development rights are not included in this layer. The exception is flood control areas, which may include permanent easements. Types of property in this layer include parks, forests, wildlife areas, flood control areas, scenic preserves, natural areas, historic reserves, DEP owned waterbodies, water access sites and other miscellaneous properties. This layer is current and is updated as parcels are acquired by DEP.
24000
Website
20041101
Ground Condition
BASE12
Spatial and attribute information for all land owned and operated by Connecticut DEP to gain a better understanding of the open space in the state.
U.S. Fish and Wildlife Service
19901024
Middlesex Coastal Barrier Areas
Raster Digital Data Map
www.fws.gov/habitatconservation/coastal_barrier
U.S. Fish and Wildlife
The Coastal Barrier Resources Act (CBRA) of 1982 established the John H. Chafee Coastal Barrier Resources System (CBRS), comprised of undeveloped coastal barriers along the Atlantic, Gulf, and Great Lakes coasts. The law encourages the conservation of hurricane prone, biologically rich coastal barriers by restricting Federal expenditures that encourage development, such as Federal flood insurance through the National Flood Insurance Program. CBRA is a free-market approach to conservation. These areas can be developed, but Federal taxpayers do not underwrite the investments. CBRA saves taxpayer dollars and encourages conservation at the same time. CBRA has saved over $1 billion and will save millions more in the future. Approximately 3.1 million acres of land and associated aquatic habitat are part of the CBRS. The Fish and Wildlife Service maintains the repository for CBRA maps enacted by Congress that depict the CBRS. The Service also advises Federal agencies, landowners, and Congress
regarding whether properties are in or out of the CBRS, and what kind of Federal expenditures are allowed in the CBRS.
24000
Website
19901024
Map Date Stamp
BASE13
Spatial and attribute information for Coastal Barrier Resources System.
U.S. Department of Commerce, U.S. Census Bureau, Geography Division
2005
Tiger Line Road Features, 2005 First Edition, Connecticut, Middlesex County
Vector Digital Data
www.census.gov/geo/www/tiger
U.S. Censes Bureau, Geography Division
The 2005 First Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage for a single TIGER/Line file is a county or statistical equivalent entity, with the coverage area based on the latest available governmental unit boundaries. The Census TIGER database represents a seamless national file with no overlaps or gaps between parts. However, each county-based TIGER/Line file is designed to stand alone as an independent data set or the files can be combined to cover the whole Nation. The 2005 First Edition TIGER/Line files consist of line segments representing physical features and governmental and statistical boundaries. The files contain information distributed over a series of record types for the spatial objects of a county. There are 19 record types, including the basic data record, the shape coordinate points, and geographic codes that can be used with appropriate software to prepare maps
. Other geographic information contained in the files includes attributes such as feature identifiers/census feature class codes (CFCC) used to differentiate feature types, address ranges and ZIP Codes, codes for legal and statistical entities, latitude/longitude coordinates of linear and point features, landmark point features, area landmarks, and area boundaries.
8888
Website
20050401
Publication Date
BASE14
Spatial and attribute information for transportation features.
U.S. Geological Survey
1985
USGS 7.5-Minute Series Topographic Maps
Digital raster data
Reston, VA
U.S. Geological Survey
USGS has mapped the county with 1:24000 scale topographic maps (also referred to as 7.5-minute quadrangles). The entire county was mapped by the late 1980s. From the raster topographic maps, a vector index of the USGS topographic maps with its corresponding tile identification number and name was created.
24000
Online
20050401
Publication Date
BASE15
Spatial and attribute information for the index of USGS 7.5-Minute Series Topographic Map boundaries.
State of Connecticut Department of Environmental Protection
1997
Federal_Property Shapefile
Vector Digital Data
Hartford, CT
Department of Environmental Protection
This is a 1:24,000-scale data layer of property under the jurisdiction of Federal agencies such as the National Park Service, U.S. Fish and Wildlife Service, and U.S. Army Corps of Engineers. It is a polygon Shapefile that includes holdings for the Appalachian Trail, National Wildlife Refuges, flood control areas, and Connecticut River Gateway Scenic Easements. This information was compiled in 1994 by the Environmental and Geographic Information Center, Department of Environmental Protection (DEP) using information from the Federal agencies. The property boundaries were mapped on 7.5 Minute U.S. Geological Survey topographic quadrangle maps and digitized at 1:24,000 scale (1 inch = 2,000 feet).
24000
Website
19970401
Ground Condition
BASE16
Spatial and attribute information for Federal Properties.
Aero-Metric Inc.
2005
2004 State of Connecticut Orthophotos
Orthorectified Aerial Photography
Newington, CT
Connecticut Department of Transportation in cooperation with Connecticut Department of Environmental Protection
None
12000
Hard Drive
20050401
Publication Date
BASE1
Spatial information for Middlesex County Mapping.
James W. Sewall Company
19970123
Topographic map of the Town of Cromwell
Vector Digital Data
Cromwell, CT
Town of Cromwell
None
1200
CD-ROM
19970123
Publication Date
BASE2
Spatial and attribute information for locations of Flood Hazard lines and also Transportation features.
James W. Sewall Company
88880808
City of Middletown Topographic Mapping
Vector Digital Data
Middletown, CT
City of Middletown
none
1200
CD-ROM
88880808
Publication Date
BASE3
Spatial and attribute information for locations of Flood Hazard lines and also Transportation features.
James W. Sewall Company and Aero-Metric Inc.
88880808
City of Middletown Topographic Mapping and 2004 State of Connecticut Orthophotos
Vector and Raster Digital Data
Middletown, CT and Newington, CT
City of Middletown and Connecticut Department of Transportation in cooperation with Connecticut Department of Environmental Protection
None
1200
CD-ROM
88880808
Publication Date
BASE4
Spatial and attribute information for area around city of Middletown.
Roald Haestad Inc.
2006
Middletown Stream Check
Vector Digital Data
Waterbury, CT
Roald Haestad Inc.
Conducted field check to confirm position and location of stream in the City of Middletown.
8888
Paper
20060401
Research Date
BASE5
Spatial information for location of a stream in the City of Middletown.
Spectrum Mapping, LLC
20050824
CT River Lidar and Orthophotos
Raster and Vector Digital Data
Washington, DC
Federal Emergency Management Agency
None
8888
DVD
20050824
Publication Date
BASE6
Spatial and attribute information for Digitizing of Connecticut River.
State of Connecticut, Department of Environmental Protection
19940101
Hydro Shapefile
Vector Digital Data
Hartford, CT
State of Connecticut Department of Environmental Protection
Polygon and line based layer that includes all the hydrography features depicted on the U.S. Geological survey 7.5 topographic quadrangle maps for State of Connecticut. This layer only includes features in Connecticut such as waterbodies, inundation areas, marshes, dams, aqueducts, canals, ditches, shoreline, tidal flats, shoals, rocks, channels, and islands.
24000
Website
19940101
Publication Date
BASE7
Spatial and attribute information for water areas in Connecticut.
U.S. Geological Survey
20040722
NHD Flowline High Resolution
Vector Digital Data
Reston, Virginia USA
U.S. Geological Survey
The digital orthophoto quadrangle (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the Universal Transverse Mercator Projection (UTM) on the North American Datum of 1983 (NAD83), reprojected into State Plane NAD83. The imagery is based on panchromatic black and white (or color infra-red) NAPP or NAPP-like photography. From the raster DOQs, a vector index is created.
24000
Website
20040722
Shapefile Date Attribute
BASE8
Names and locations for low resolution streams outside of study areas.
James W. Sewall Company
88880808
Town of Portland Topographic Mapping
Vector Digital Data
Portland, CT
Town of Portland
None
1200
CD-ROM
88880808
Publication Date
BASE9
Spatial and attribute information for Portland Connecticut.
Federal Emergency Management Agency (FEMA)
19810116
Town of Deep River Flood Hazard Boundary Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19810116
Publication Date
FHBM1
Spatial and attribute information for Flood Hazard Lines and area, Floodways, Cross Section locations, and Structures.
Federal Emergency Management Agency (FEMA)
19791101
Town of East Hampton Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
12000
CD-ROM
19791101
Publication Date
FIRM10
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Anderson-Nichols and Company Inc.
19760806
Town of East Hampton Workmaps
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-Rom
19760806
Publication Date
FIRM11
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency (FEMA)
19860403
Town of Essex Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19860403
Publication Date
FIRM12
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19800116
Town of Haddam Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19800116
Publication Date
FIRM13
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19920930
Town of Killingworth Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
6000
CD-ROM
19920930
Publication Date
FIRM14
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19800328
Town of Middlefield Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
none
4800
CD-ROM
19800328
Publication Date
FIRM15
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
20010307
City of Middletown Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
20010307
Publication Date
FIRM16
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19880705
Town of Old Saybrook Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
3000
CD-ROM
19840705
Publication Date
FIRM17
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19780703
Town of Portland Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
12000
CD-ROM
19780703
Publication Date
FIRM18
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Anderson-Nichols and Company Inc.
19750923
Town of Portland Workmaps
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
2400
CD-ROM
19750923
Publication Date
FIRM19
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency (FEMA)
19900202
Town of Chester Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19900202
Publication Date
FIRM1
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19821201
Town of Westbrook Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19821201
Publication Date
FIRM20
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19860219
Town of Westbrook Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19860219
Publication Date
FIRM21
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
U.S. Army Corps of Engineers
19830110
Workmap for Westbrook
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
2400
CD-Rom
19830110
Publication Date
FIRM22
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency (FEMA)
19810116
Town of Deep River Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19810116
Publication Date
FIRM23
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
unknown
88880808
City of Middletown Workmaps
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
1200
CD-ROM
88880808
Publication Date
FIRM24
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency (FEMA)
88880808
All Flood Insurance Rate Maps for Middlesex County Connecticut
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
8888
CD-ROM
88880808
Publication Date
FIRM25
Attribute information for Flood Hazard Areas.
Federal Emergency Management Agency (FEMA)
19840601
Town of Clinton Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19840401
Publication Date
FIRM2
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
1984
Town of Clinton Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19840401
Publication Date
FIRM3
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
C-E Maguire
19790101
Town of Clinton Workmaps
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
none
2400
CD-ROM
19790101
Publication Date
FIRM4
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency (FEMA)
19970917
Town of Cromwell Flood Insurance Rate Map
Raster Digital Data
Washington D.C., USA
Federal Emergency Management Agency (FEMA)
None
9600
CD-ROM
19970917
Publication Date
FIRM5
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Roald Haestad Inc.
19950825
Mattabesset River Workmaps
Raster Digital Data
Waterbury, CT
Roald Haestad Inc.
None
2400
CD-ROM
19950825
Publication Date
FIRM6
Spatial and attribute information for Flood Hazard Lines and area, and BFEs.
Federal Emergency Management Agency (FEMA)
19820401
Town of Durham Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
4800
CD-ROM
19820401
Publication Date
FIRM7
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency (FEMA)
19791101
Town of East Haddam Flood Insurance Rate Map
Raster Digital Data
Washington DC
Federal Emergency Management Agency (FEMA)
None
12000
CD-ROM
19791101
Publication Date
FIRM8
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Anderson-Nichols and Company Inc.
19771001
Town of East Haddam Workmaps
Raster Digital Data
Washington D.C., USA
Federal Emergency Management Agency (FEMA)
None
2400
CD-ROM
19771001
Publication Date
FIRM9
Spatial and attribute information for Flood Hazard Lines and area, and Structures.
Federal Emergency Management Agency
197909
Town of Middlefield Flood Insurance Study
map
Washington, DC
Federal Emergency Management Agency
None
12000
Paper
197909
Effective Date
FIS10
Spatial and attribute information for floodplain widths, Cross section and floodplain location.
Federal Emergency Management Agency
200103
City of Middletown Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
20010307
Effective Date
FIS11
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
19840105
Town of Old Saybrook Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19840105
Effective Date
FIS12
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
197801
Town of Portland Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19780101
Effective Date
FIS13
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
198602
Town of Westbrook Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19860219
Effective Date
FIS14
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
19811001
Town of Durham Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19811001
Effective Eate
FIS15
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
19900202
Town of Chester Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19900202
Effective Date
FIS1
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
19970107
Town of Clinton Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19970107
Effective Date
FIS2
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
19970917
Town of Cromwell Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19970917
Effective Date
FIS3
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
197905
Town of Deep River Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19790501
Effective Date
FIS4
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
197905
Town of East Haddam Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19790501
Effective Date
FIS5
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
197904
Town of East Hampton Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19790401
Effective Date
FIS6
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
198603
Town of Essex Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19860304
Effective Date
FIS7
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
197907
Town of Haddam Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19790701
Effective Date
FIS8
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
199209
Town of Killingworth Flood Insurance Study
Report
Washington, DC
Federal Emergency Management Agency
None
8888
Paper
19920930
Effective Date
FIS9
Spatial and attribute information for floodplain widths, Cross Sections and floodplain location.
Federal Emergency Management Agency
20010208
Letter of Map Revision 00-01-017P
Raster Digital Data
Washington, DC
Federal Emergency Management Agency
None
9600
CD-ROM
20010208
Publication Date
LOMC1
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Federal Emergency Management Agency
20021217
Letter of Map Revision 02-01-045P
Raster Digital Data
Washington, DC
Federal Emergency Management Agency
none
4800
CD-ROM
20021217
Publication Date
LOMC2
Spatial and attribute information for Flood Hazard Lines and area, Structures, and BFEs.
Roald Haestad Inc.
88880808
Connecticut River Detailed Study
Vector Digital Data
Washington, DC
FEMA
None
6000
CD-ROM
88880808
Publication Date
STUDY1
Spatial and attribute information for Flood Hazard Lines and area, and Cross Sections.
USGS
2005
Estimates of the Magnitude and Frequency of Flood Flows in the Connecticut River in Connecticut
Open File Reports
Reston, VA
USGS
None
8888
Electronic Report
20050401
Publication Date
STUDY2
Spatial and attribute information for Used to estimate flood flows for the Connecticut River.
The DFIRM Database is compiled in conjunction with the hardcopy FIRM and the final FIS report. The specifics of the hydrologic and hydraulic analyses performed are detailed in the FIS report. The results of these studies are submitted in digital format to FEMA. These data and unrevised data from effective FIRMs are compiled onto the base map used for DFIRM publication and checked for accuracy and compliance with FEMA standards.
BASE10
BASE11
BASE12
BASE13
BASE14
BASE15
BASE16
BASE1
BASE2
BASE3
BASE4
BASE5
BASE6
BASE7
BASE8
BASE9
FHBM1
FIRM10
FIRM11
FIRM12
FIRM13
FIRM14
FIRM15
FIRM16
FIRM17
FIRM18
FIRM19
FIRM1
FIRM20
FIRM21
FIRM22
FIRM23
FIRM24
FIRM25
FIRM2
FIRM3
FIRM4
FIRM5
FIRM6
FIRM7
FIRM8
FIRM9
FIS10
FIS11
FIS12
FIS13
FIS14
FIS15
FIS1
FIS2
FIS3
FIS4
FIS5
FIS6
FIS7
FIS8
FIS9
LOMC1
LOMC2
STUDY1
STUDY2
20080828
Vector
Point
String
GT-polygon composed of chains
State Plane Coordinate System 1983
0600
41.2
41.8666666666667
-72.75
40.8333333333333
999999.999996
499999.999998
coordinate pair
0.304800609601219
0.304800609601219
foot_us
North American Datum 1983
Geodetic Reference System 80
6378137.0
298.26
North American Vertical Datum of 1988
0.03
Feet
Attribute values
S_BFE
Location and attributes for base flood elevations lines shown on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_CBRS
Location and attributes for Coastal Barrier Resource System units on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_FIRM_Pan
Location and attributes for DFIRM hardcopy map panels
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Fld_Haz_Ar
Location and attributes for flood insurance risk zones on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Fld_Haz_Ln
Location and attributes for boundaries of flood insurance risk zones on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Gen_Struct
Location and attributes for flood control structures shown on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Perm_Bmk
Location and attributes for bench marks on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Pol_Ar
Location and attributes for political jurisdictions shown on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Pol_Ln
Location and attributes for political boundaries shown on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Quad_Index
Location and attributes for USGS quadrangle maps covering the DFIRM area
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_Wtr_Ln
Location and attributes for hydrography features shown on the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
S_XS
Location and attributes for cross-section lines in the area covered by the DFIRM
FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
The DFIRM Database is made up of several data themes containing both spatial and attribute information. These data together represent the current flood risk for the subject area as identified by FEMA. The attribute tables include SFHA locations, flood zone designations, BFEs, political entities, cross-section locations, FIRM panel information, and other data related to the NFIP.
Appendix L of FEMA's Guidelines and Specifications for FEMA Flood Hazard Mapping Partners contains a detailed description of each attribute code and a reference to other relevant information.
The following tables are included in this data set:
L_Comm_Info
L_MT1_LOMC
L_Stn_Start
S_BFE
S_CBRS
S_FIRM_Pan
S_Fld_Haz_Ar
S_Fld_Haz_Ln
S_Gen_Struct
S_Perm_Bmk
S_Pol_Ar
S_Pol_Ln
S_Quad_Index
S_Wtr_Ln
S_XS
Study_Info
FEMA, Map Service Center
mailing
P.O. Box 1038
Jessup
Maryland
20794-1038
USA
1-800-358-9616
http://www.fema.gov/msc
Data requests must include the full name of the community or county and the FIRM panel number(s) or the 7.5- minute series quadrangle sheet area(s) covered by the request.
No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty. FEMA will warrant the delivery of this product in a computer-readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site.
ESRI Shapefile
1
http://www.fema.gov/msc
Contact Distributor
ESRI Shapefile
1
CD-ROM
ISO 9660
Contact Distributor
MapInfo Interchange file (MIF)
1
http://www.fema.gov/msc
Contact Distributor
MapInfo Interchange file (MIF)
1
CD-ROM
ISO 9660
Contact Distributor
ARCE
1
http://www.fema.gov/msc
Contact Distributor
ARCE
1
CD-ROM
ISO 9660
Contact Distributor
20080313
MIPHelp
Federal Emergency Management Agency
mailing
500 C Street, S.W.
Washington
District of Columbia
20472
USA
1-800-358-9616
MipHelp@mapmodteam.com
None
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-1-1998
http://hazards.fema.gov
http://www.epsg.org
FEMA NFIP Metadata Content and Format Standard