Digital Flood Insurance Rate Map Database, Essex County, Virginia, USA

File Identifier:
Metadata Language: eng; USA
: utf8
Resource Type: Dataset
Responsible Party:
Individual Name: Regional Support Center-III Coordinator
Organisation Name: RAMPP
Role: Point Of Contact
Contact Info:
Voice: 215-681-9032
Delivery Point: 8 Penn Center, 21st Floor
City: Philadelphia
Administrative Area: Pennsylvania
Postal Code: 19103
Country: USA
E-Mail Address:
Metadata Date: 2015-05-04
Metadata Standard Name: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version: ISO 19115-2:2009(E)
Data Identification
Abstract: 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 Universal Transverse Mercator Zone 18 North. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000. Coastal study data as defined in FEMA Gudelines and Specifications, Appendix D: Guidance for Coastal Flooding Analyses and Mapping, submitted as a result of a coastal study. Appendix D notes that a variety of analytical methodologies may be used to establish Base (1-percent-annual-chance) Flood Elevations (BFEs) and floodplains throughout coastal areas of the United States. Appendix D itemizes references for the methodologies currently in use by FEMA for specific coastal flood hazards, provides general guidance for documentation of a coastal flood hazard analysis, specifies flood hazard analysis procedures for the Great Lakes coasts, and outlines intermediate data submissions for coastal flood hazard analyses with new storm surge modeling and revised stillwater flood level (SWFL). (Source: FEMA Guidelines and Specs, Appendix D Guidance for Coastal Flooding Analyses and Mapping, Section D.1)
Purpose: 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.
Language: eng; USA
Title: Digital Flood Insurance Rate Map Database, Essex County, Virginia, USA
Date: 2015-05-04
Date Type: Publication Date
Organisation Name: Federal Emergency Management Agency
Role: Publisher
Contact Info:
City: Washington
Administrative Area: DC
Organisation Name: RAMPP
Role: Originator
Organisation Name: Federal Emergency Management Agency
Role: Originator
Organisation Name:
Contact Info:
Online Resource:
Point Of Contact:
Organisation Name: Federal Emergency Management Agency
Role: Point Of Contact
Contact Info:
Voice: 1-877-336-2627
Delivery Point: 500 C Street, S.W.
City: Washington
Administrative Area: District of Columbia
Postal Code: 20472
Country: USA
E-Mail Address:
Topic Category:
Keyword Collection:
Keyword: DFIRM
Keyword: FIRM
Keyword: FEMA Flood Hazard Zone
Keyword: DFIRM Database
Keyword: Special Flood Hazard Area
Keyword: Digital Flood Insurance Rate Map
Keyword: Coastal Barrier Resources System
Keyword: Riverine Flooding
Keyword: Coastal Flooding
Keyword: NFIP
Keyword: Base Flood Elevation
Keyword: SFHA
Keyword: Flood Insurance Rate Map
Keyword: 0.2-Percent-Annual-Chance Stillwater Flood Level
Keyword: 1-Percent-Annual-Chance Stillwater Flood Level
Keyword: Storm Surge Model
Keyword: Wave Analysis
Keyword: Wave Height
Keyword: Wave Runup
Keyword: Wave Setup
Keyword: Coastline
Keyword: Offshore
Keyword: Tide Gage
Keyword: Transects
Associated Thesaurus: FEMA NFIP Topic Category
Keyword: REGION 3
Keyword: STATE VA
Keyword: COUNTY-FIPS 057
Keyword: FEMA-CID 51057C
Keyword: FEMA-CID 510048
Keyword: FEMA-CID 510049
Associated Thesaurus: None
Spatial Extent:
West Bounding Longitude: -77.296
East Bounding Longitude: -76.619
North Bounding Latitude: 38.3
South Bounding Latitude: 37.5
Constraints: 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.
Legal Constraints:
Use Constraints: Other Restrictions
Other Constraints: Use Constraints: 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.
Legal Constraints:
Access Constraints: Other Restrictions
Other Constraints: Access Constraints: None
Distribution Format:
Format Name: ESRI Shapefile
Format Version:
Transfer Options:
Distributor Contact:
Organisation Name: FEMA, Mapping Information Platform
Role: Distributor
Contact Info:
Voice: 1-877-336-2627
Delivery Point: P.O. Box 3617
City: Oakton
Administrative Area: Virginia
Postal Code: 22124
Country: USA
E-Mail Address:
Scope: Dataset