Federal Emergency Management Agency 20100929 FEMA-DFIRM-Final Washington, DC Federal Emergency Management Agency http://www.fema.gov/msc Federal Emergency Management Agency 20100929 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 Coordinate System (ZONE 17N) and Lambert Conformal conic projection. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000. 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. 20100929 FIRM and FIS Effective Date Complete Unknown -80.45 -79.17 39.2 38.32 ISO 19115 Topic Category hydrology environment inlandWaters structure transportation elevation FEMA NFIP Topic Category DFIRM FIRM FEMA Flood Hazard Zone DFIRM Database Special Flood Hazard Area Digital Flood Insurance Rate Map CBRS Coastal Barrier Resources System Riverine Flooding Coastal Flooding NFIP Base Flood Elevation SFHA Flood Insurance Rate Map Floodway None REGION 3 STATE WV COUNTY Randolph County COUNTY-FIPS 083 COMMUNITY RANDOLPH COUNTY (and incorporated areas) FEMA-CID 54083C 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 address

500 C Street, S.W.

Washington District of Columbia 20472 USA 1-800-358-9616 http://www.fema.gov/msc Federal Emergency Management Agency 20100929 map Washington, DC Federal Emergency Management Agency http://www.fema.gov/msc Federal Emergency Management Agency 20100929 document Washington, DC Federal Emergency Management Agency http://www.fema.gov/msc Federal Emergency Management Agency 20100929 raster digital data Washington, DC Federal Emergency Management Agency http://www.fema.gov/msc The DFIRM Database consists of community based 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 community based 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 community based 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. Federal Emergency Management Agency 19910927 paper 19910927 FIS and FIRM Effective Date FIS1 Spatial and attribute information for Base Flood Elevations (BFEs) and floodplain boudaries. USGS Unknown vector digital data 24000 download digital file Unknown publication date BASE1 spatial and attribute information for USGS 7.5-MINUTE QUADRANGLE GRID/INDEX (S_Quad_Index). Additionally, these map boundaries were divided to create the S_FIRM_Pan feature class. Different scales were selected based on FEMA guidelines and specifications. National Geodetic Survey 2005 vector digital data Silver Spring, MD National Geodetic Survey The National Geodetic Survey (NGS) serves as the Nation's depository for geodetic data in the National Spatial Reference System. These geodetic data include bench marks and other control points that provide the base of reference for latitude, longitude, height, scale, orientation, and gravity measurements used throughout the United States. 24000 download digital file 20051031 date of download BASE2 Spatial and attribute information for permanent benchmarks which meet FEMA specifications. US Department of Commerce, Bureau of the Census, Geography Division 20010101 Online 20010101 publication date BASE3 Spatial and attribute information for political lines and areas. U.S. Geological Survey (USGS), West Virginia Statewide Addressing and Mapping Board (WVSAMB), West Virginia University GIS Technical Center. 2005 Stable-base material 2005 ground condition BASE4 Source imagery for base map, including road and stream locations. AMEC Earth & Environmental, Inc. 20100929 Detailed SFHAs were digitized and Zone A flooding was refined by AMEC under Contract No. HSFE03-07-D-0030, Task Order HSFE03-08-J-0008. 6000 DVD-ROM 20100929 publication date STUDY1 Spatial and attribute information for new countywide FIRM panels. BFEs converted from NGVD29 found on the effective FIS flood profiles (FIS1) to NAVD88. General Structures and Cross Sections were derived from effective hydraulic & hydrologic analyses. 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. 20100929 Floodplains were spatially adjusted in areas where the stream channel configurations moved beyond the floodplain extent. Floodplains were also adjusted to reflect the effective road-floodplain relationship on the updated base map. 20100929 Universal Transverse Mercator 17 0.999600 -81.00000 0.000000 500000.000000 0.000000 coordinate pair 0.01 0.01 meters North American Datum of 1983 Geodetic Reference System 80 6378137.0 298.257222 North American Vertical Datum of 1988 0.000001 feet Explicit elevation coordinate included with horizontal coordinates S_Base_Index Location and attributes for a tiling index for raster data used for 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_BFE Location and attributes for base flood elevations lines shown on 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_Cst_Gage Location and attributes for the coastal gages for the study 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_Cst_Tsct_Ln Location and attributes for coastal transect 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_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 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_Label_Ld Location and attributes for leader lines on transportation and hydrography labels 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_Label_Pt Location and attributes for transportation and hydrography labels 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_LOMR Location and attributes for LOMRs 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_Nodes Location and attributes of points used to define the topology of the hydrologic network. 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_Ovrbnkln Location and attributes for the overbank flow lines features for the study 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_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_PFD_Ln Location and attributes for the primary frontal dune features for the coastal study 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_PLSS_Ar Location and attributes of sections, townships and ranges 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_PLSS_Ln Location and attributes section lines, township lines and range lines 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_Precip_Gage Location and attributes for rain gages used in developing the hydrologic analysis 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_Profil_BasLn Location and attributes for profile baseline and stream centerline features for the study 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_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_Riv_Mrk Location and attributes for river mile markers 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_Shore_Ln Location and attributes for the shoreline used in the coastal flood hazard model. 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_Subbasins Location and attributes for subbasins in the hydrologic analysis. 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_Water_Gage Location and attributes for non- rain gages used in developing the hydrologic analysis 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_Ar Location and attributes for hydrography features shown on 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_Wtr_Ln Location and attributes for hydrography features shown on 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 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_stn_start study_info s_bfe 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 s_label_ld s_label_pt s_base_index FEMA, Map Service Center mailing address

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. ARCE http://www.fema.gov/msc ESRI Shapefile http://www.fema.gov/msc MapInfo Interchange file (MIF) http://www.fema.gov/msc ARCE CD-ROM ISO 9660 ESRI Shapefile CD-ROM ISO 9660 MapInfo Interchange file (MIF) CD-ROM ISO 9660 Contact Distributor 20100929 Mr. Jon Janowicz FEMA, Region III Project Officer mailing address

615 Chestnut Street

Philadelphia PA 19106-4404 USA 1-215-931-5524 jon.janowicz@dhs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 http://hazards.fema.gov http://www.epsg.org FEMA NFIP Metadata Content and Format Standard