Identification_Information: Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20050302 Title: DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MERCER COUNTY, WEST VIRGINIA Geospatial_Data_Presentation_Form: Vector Data Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other_Citation_Details: 54055C_20050302_metadata 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: 20050302 Currentness_Reference: FIRM and FIS effective date Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -81.3769 East_Bounding_Coordinate: -80.7487 North_Bounding_Coordinate: 37.6256 South_Bounding_Coordinate: 37.1245 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: MERCER 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 Contact_Address: Address_Type: mailing 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_Data_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: 20050302 Title: Flood Insurance Study, MERCER 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: 20050302 Title: Flood Insurance Rate Map, MERCER 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: 20050302 Title: Raster DFIRM, MERCER 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 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. 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: 20050302 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: City of Bluefield, WV 19831201, Town of Bramwell, WV 19831201, Town of Matoaka, WV 199831215, Mercer County, WV (Unincorporated Areas) 19950502, Town of Oakvale, WV 19831215, City of Princeton, WV 19840201. FEMA has updated the FIS to include restudy information. The restudy information includes: the incorporated communities within Mercer County in a countywide FIS. Information on the authority and acknowledgments for each jurisdiction included in this countywide FIS, as compiled from their previously printed FIS reports, is shown as follows: Bramwell, Town of: the hydrologic and hydraulic analyses for the FIS dated June 1, 1983, were prepared by the Huntington District of the U. S. Army Corps of Engineers, for the Federal Insurance Administration (FIA), under Inter-Agency Agreement No. IAA-H-9-79, Project Order No. 42. That work was completed in August 1982. Matoaka, Town of: the hydrologic and hydraulic analyses for the FIS dated June 15, 1983, were prepared by the Huntington District of the U. S. Army Corps of Engineers, for the Federal Insurance Administration (FIA), under Inter-Agency Agreement No. IAA-H-9-79, Project Order No. 42. That work was completed in August 1982. Mercer County (Unincorporated Areas): In the original August 1, 1984, FIS, the hydrologic and hydraulic analyses were prepared by the U.S. Army Corps of Engineers (USACE), Huntington District, for the Federal Emergency Management Agency (FEMA), under Inter-Agency Agreement No. IAA-H-9-79, Project Order No. 42. That work was completed in August 1982. In the May 2, 1995, revision, the hydrologic and hydraulic analyses for Brush Creek and South Fork were prepared by the U.S. Geological Survey (USGS) for FEMA, under Inter-Agency Agreement No. EMW-91-E-3535. That work was completed in June 1993. Oakvale, Town of: the hydrologic and hydraulic analyses for the FIS dated June 15, 1983, were prepared by the Huntington District of the USACE for the FIA, under Inter-Agency Agreement No. IAA-H-9-79, Project Order No. 42. That work was completed in August 1982. Princeton, City of: the hydrologic and hydraulic analyses for the FIS dated August 1, 1983, were prepared by the Huntington District of the USACE for the FIA, under Inter-Agency Agreement No. IAA-H-9-79, Project Order No. 42. That work was completed in August 1982. The authority and acknowledgments for the Towns of Athens and Bluefield are not included because there were no previously printed FIS reports for those communities. The digital base mapping information was provided in digital format by Region I Planning and Development Council. This information was compiled by fitting Mercer County 2002 roads and USGS Digital Line Graphs to USGS Digital Orthophoto Quadrangles produced at a scale of 1:12,000 from photography dated 1996 or later. The digital FIRM was produced in Universal Transverse Mercator (UTM) Zone 17. The horizontal datum was NAD 83, GRS80 spheroid. This FIS covers the geographic area of Mercer County, West Virginia. All or portions of the following flooding sources were studied by detailed methods. Limits of detailed study are indicated on the Flood Profiles and on the FIRM: Blacklick Creek, Bluestone River, Brush Creek, Brush Fork, Christian Fork, Daves Fork, East River, Glady Fork, Lorton Lick Creek, Middle Fork, Payne Branch, South Fork, and Widemouth Creek. The areas studied by detailed methods were selected with priority given to all known flood hazard areas and areas of projected development and proposed construction. Numerous flooding sources in the county were studied by approximate methods. Approximate analyses were used to study those areas having a low development potential or minimal flood hazards. The scope and methods of study were proposed to, and agreed upon by, FEMA and Mercer County. Source_Scale_Denominator: 4800 9600 Type_of_Source_Media: Paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050302 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, river mile markers, and some feature names. Source_Information: Source_Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20050302 Title: MERCER COUNTY, WEST VIRGINIA, Digital Flood Insurance Rate Map 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: 6000 12000 Type_of_Source_Media: Digitized Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050302 Source_Currentness_Reference: Effective date Source_Citation_Abbreviation: STUDY1 Source_Contribution: Grid of DFIRM panels. Source_Information: Source_Citation: Citation_Information: Originator: National Geodetic Survey Publication_Date: 2005 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: 24000 Type_of_Source_Media: On line Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: NGS1 Source_Contribution: National Geodetic Survey reference points (bench marks). Source_Information: Source_Citation: Citation_Information: Originator: Region I Planning and Development Council Publication_Date: 2002 Title: Region I Planning and Development Council base map Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Boston, MA Publisher: Region I Planning and Development Council Other_Citation_Details: The digital base mapping information was provided in digital format by Region I Planning and Development Council. This information was compiled by fitting Mercer County 2002 roads and USGS Digital Line Graphs to USGS Digital Orthophoto Quadrangles produced at a scale of 1:12,000 from photography dated 1996 or later. Source_Scale_Denominator: 12000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1996 Source_Currentness_Reference: Ground conditions Source_Citation_Abbreviation: BASE1 Source_Contribution: Location of roads, railroads, bridges, streams, and other physical features. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1999 Title: 7.5-Minute Quadrangle Grid Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Redlands, CA Publisher: ESRI Other_Citation_Details: Grid of USGS 7.5-Minute Series Topographic Maps. Source_Scale_Denominator: 24000 Type_of_Source_Media: CD-ROM 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. 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, STUDY1, NGS1, BASE1, USGS1 Process_Date: 20050302 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector 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: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 17 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -81 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000128 Ordinate_Resolution: 0.000128 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS_1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.26 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: NGVD29 Altitude_Resolution: 0.03 Altitude_Distance_Units: feet Altitude_Encoding_Method: Attribute values 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. 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_label_ld s_perm_bmk s_pol_ar s_pol_ln s_quad_index s_riv_mrk s_trnsport_ln s_wtr_ln s_xs s_label_pt Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: FEMA, Map Service Center Contact_Address: Address_Type: mailing address Address: P.O. Box 1038 City: Jessup State_or_Province: Maryland Postal_Code: 20794-1038 Country: USA Contact_Voice_Telephone: 1-800-358-9616 Contact_Electronic_Mail_Address: www.fema.gov/msc Contact_Instructions: 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. Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Arc/Info Export file Format_Version_Number: 1 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: ISO 9600 Digital_Form: Digital_Transfer_Information: Format_Name: MapInfo Interchange file Format_Version_Number: 1 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: ISO 9600 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 Metadata_Reference_Information: Metadata_Date: 20050510 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 Country: 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