DFIRM DATABASE, MONROE COUNTY, WEST VIRGINIA Identification_Information Citation Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MONROE COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form Vector and Raster Digital Data Publication_Information Publication_Place Washington, DC Publisher Federal Emergency Management Agency Other_Citation_details Metadata_File_Name 54063C20020617_metadata.xml Online_Linkage www.fema.gov/msc Description 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 UTM 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 1:12,000. 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. Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 20020617 Currentness_Reference FIRM and FIS effective date Status Progress Complete Maintenance_and_Update_Frequency Irregular Spatial_Domain Bounding_Coordinate West_Bounding_Coordinate -80.875431 East_Bounding_Coordinate -80.121834 North_Bounding_Coordinate 37.753306 South_Bounding_Coordinate 37.246974 Keywords Theme Theme_Keyword_Thesaurus None Theme_Keyword FEMA Flood Hazard Zone Theme_Keyword DFIRM Theme_Keyword Digital Flood Insurance Rate Map Theme_Keyword Special Flood Hazard Area Theme_Keyword DFIRM Database Theme_Keyword NFIP Theme_Keyword SFHA Theme_Keyword Flood Insurance Rate Map Theme_Keyword FIRM Theme_Keyword Riverine Flooding Theme_Keyword Base Flood Elevation Theme_Keyword Floodway Place Place_Keyword_Thesaurus None Place_Keyword MONROE COUNTY Place_Keyword WEST VIRGINIA Access_Constraints None 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 matches 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. Point_of_Contact Contact_Information Contact_Organization_Primary Contact_Organization Federal Emergency Management Agency Contact_Position Federal Insurance and Mitigation Administration Address_Type mailing address Contact_Address Address 500 C Street, S.W. City Washington State_or_Province District of Columbia Postal_Code 20472 Country USA Contact_Voice_Telephone 1-800-358-9616 Contact_Electronic_Mail_Address www.fema.gov/msc Native_Date_Set_Environment Original data development environment varies. Finishing of the data is done using ESRI's ArcGIS software. Cross_Reference Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title Flood Insurance Study, MONROE COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form Document Publication_Information Publication_Place Washington, DC Publisher Federal Emergency Management Agency Cross_Reference Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title Flood Insurance Rate Map, MONROE COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form Map Publication_Information Publication_Place Washington, DC Publisher Federal Emergency Management Agency Cross_Reference Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title Raster DFIRM, MONROE COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form Raster Digital Data Publication_Information Publication_Place Washington, DC Publisher Federal Emergency Management Agency Data_Quality_Information Attribute_Accuracy Attribute_Accuracy_Report The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hard copy FEMAFIRM. 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. Logical_Consistency_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. Completeness_Report 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. Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report 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. Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report 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. Lineage Source_Information Source_Citation Citation_information Originator Federal Emergency Management Agency Publication_Date 20020617 Title Flood Insurance Study Geospatial_Data_Presentation_Form Map and report Publication_Information Publication_Place Washington, D.C. Publisher Federal Emergency Management Agency Other_Citation_details The FIS and FIRM are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). This DFIRM includes data previously published by FEMA in the following Flood Insurance Studies: Town of Alderson, WV 19910927, Town of Peterstown, WV 19790801, Monroe County, WV (Unincorporated Areas) 19830114 Source_Scale_Denominator 6,000 12,000 24,000 Type_of_Source_Media Paper Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date Multiple Dates/Times - Beginning date - 19790801 Ending data - 19910927 Source_Currentness_Reference FIS Effective dates Source_Citation_Abbreviation FIS1 Source_Contribution Spatial and attribute information for political entities, cross sections, floodplain information, BFEs, station start descriptions, general structures, coastal transects, and some feature names. Source_Information Source_Citation Citation_Information Originator Monroe County, WV Publication_Date 20020617 Title MONROE COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form Remote sensing image Publication_Information Publication_Place Washington, DC Publisher Monroe County, WV Other_Citation_Details Digital Orthophotography provided by Source_Scale_Denominator 12,000 Type_of_Source_Media CD-ROM Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 20020617 Source_Currentness_Reference Ground conditions Source_Citation_Abbreviation DOQ2 Source_Contribution Location of roads, railroads, bridges, streams, and other physical features. Source_Information Source_Citation Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title MONROE COUNTY, WEST VIRGINIA, Digital Flood Insurance Rate Geospatial_Data_Presentation_Form Vector digital data Publication_Information Publication_Place Washington, D.C. Publisher Federal Emergency Management Agency Other_Citation_Details Grid of FIRM panels created for this Flood Insurance Study. Source_Scale_Denominator 6,000 12,000 Type_of_Source_Media Digitized Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 20020617 Source_Currentness_Reference Effective date Source_Citation_Abbreviation STUDY1 Source_Contribution Grid of DFIRM panels. Source_Information Source_Citation Citation_Information Originator Federal Emergency Management Agency Publication_Date 20020617 Title MONROE COUNTY, WEST VIRGINIA, Digital Flood Insurance Rate Geospatial_Data_Presentation_Form Vector digital data Publication_Information Publication_Place Washington, D.C. Publisher Federal Emergency Management Agency Other_Citation_Details Base map surface water features digitized from U.S. Geological Survey Digital Orthophoto Quadrangles. Source_Scale_Denominator 12,000 Type_of_Source_Media Digitized Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 20020617 Source_Currentness_Reference Effective date Source_Citation_Abbreviation STUDY2 Source_Contribution Base map surface water features. Source_Information Source_Citation Citation_Information Originator U.S. Geological Survey Publication_Date 20020617 Title 7.5-Minute Quadrangle Grid Geospatial_Data_Presentation_Form Vector digital data Publication_Information Publication_Place Reston, VA Publisher ESRI Other_Citation_Details Grid of USGS 7.5-Minute Series Topographic Maps. Source_Scale_Denominator 12,000 Type_of_Source_Media Online Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 1999 Source_Currentness_Reference Publication date Source_Citation_Abbreviation USGS1 Source_Contribution Grid of USGS 7.5-Minute Series Topographic Maps. Source_Information Source_Citation Citation_Information Originator National Geodetic Survey Publication_Date 20020617 Title Geodetic bench mark positions and descriptions Geospatial_Data_Presentation_Form Vector digital data Publication_Information Publication_Place Silver Spring, MD Publisher National Geodetic Survey Other_Citation_Details 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. Source_Scale_Denominator 24,000 Type_of_Source_Media CD-ROM Source_Time_Period_of_Content Time_Period_Information Single_Date_Time Calendar_Date 2002 Source_Currentness_Reference Publication date Source_Citation_Abbreviation NGS1 Source_Contribution National Geodetic Survey reference points (bench marks). Process_Step Process_Description 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. Source_Used_Citation_Abbreviation FIS1, DOQ2, STUDY1, STUDY2, USGS1, NGS1 Process_Date 20020617 Spatial_Data_Organization_Information Direct_Spatial_Reference_Method Vector and Raster Point_and_Vector_Object_Information SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type Point SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type String SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type GT-polygon composed of chains Raster_Object_Information Raster_Object_Type Pixel Spatial_Reference_Information Horizontal_Coordinate_System_Definition Planar Grid_Coordinate_System Grid_Coordinate_System_Name UTM Universal_Transverse_Mercator UTM_Zone_Number 17 Transverse_Mercator Scale_Factor_at_Central_Meridian 0.996 Logitude_of_Central_Meridian -87.0 Latitude_of_Central_Meridian 0.0 False_Easting 500000 False_Northing 0.0 Planar_Coordinate_Information Planar_Coordinate_Encoding_Method Coordinate_Representation Abscissa_Resolution 0.061 Ordinate_Resolution 0.061 Planar_Distance_Units meters Geodetic_Model Horizontal_Datum_Name NAD83 Ellipsoid_Name Geodetic Reference System 80 Semi-Major_Axis 6378206.4 Denominator_of_Flattening_Ratio 294.98 Vertical_Coordinate_System_Definition Alttitute_System_reference Altitude_Datum_Name NGVD29 Altitude_Resolution 0.03 Altitude_Distance_Units feet Altitude_Encoding_Method Entity_and_Attribute_Information Overview_Description Entity_and_Attribute_Overview 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. Entity_and_Attribute_Detail_Citation 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. Entity_and_Attribute_Detail_Citation The following tables are included in this data set: l_comm_info l_stn_start study_info s_bfe s_base_index s_firm_pan s_fld_haz_ar s_fld_haz_ln s_label_ld s_perm_bmk s_pol_ar s_pol_ln s_quad_index s_wtr_ln s_xs s_label_pt Distribution_Information Distributor Contact_Information Contact_Organization_Primary Contact_Organization FEMA, Map Service Center Contact_Type mailing address Contact_Address Address P.O. Box 1038 City Jessup State_or_Province Maryland Postal_Code 20794-1038 County USA Contact_Voice_Telephone 1-800-358-9616 Contact_Electronic_Mail_Address www.fema.gov/msc Contact_Instruction 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. Distribution_Liability 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. Standard_Order_Process Non-digital_Form Printed FIRMs and Raster DFIRMs that match this data set are available from FEMA at the Map Service Center, cited above. Fees Contact Distributor Digital_Form Digital_Transfer_Information Format_Name ESRI Shapefile Format_Version_Number 1 Digital_Transfer_Option Offline_Option Offline_Media CD-ROM Recording_Format ISO 9600 Fees Contact Distributor Digital_Form Digital_Transfer_Information Format_Name ESRI Arc/Info Export file Format_Version_Number 2 Digital_Transfer_Option Offline_Option Offline_Media CD-ROM Offline_Media ISO 9600 Fees Contact Distributor Digital_Form Digital_Transfer_Information Format_Name MapInfo Interchange file Format_Version_Number 3 Digital_Transfer_Option Offline_Option Offline_Media CD-ROM Offline_Media ISO 9600 Fees Contact Distributor Metadata_Reference_Information Metadata_Date 20020716 Metadata_Contact Contact_Information Contact_Organization_Primary Contact_Organization Federal Emergency Management Agency Contact_Position Federal Insurance and Mitigation Administration Contact_Address Address_Type mailing address Address 500 C Street, S.W. City Washington State_or_Province District of Columbia Postal_Code 20472 County USA Contact_Voice_Telephone 1-800-358-9616 Contact_Electronic_Mail_Address www.fema.gov/msc Metadata_Standard_Name FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version FGDC-STD-001-1998