Identification_Information: Citation: Citation_Information: Originator: Department of Finance and Administration, Strategic Technology Solutions Publication_Date: 20090925 Title: DIGITAL FLOOD INSURANCE RATE MAP, UNION COUNTY TENNESSEE AND INCORPOATED AREAS Geospatial_Data_Presentation_Form: FEMA-DFIRM-Final Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Online_Linkage: http://gis.state.tn.us/mapping.html Larger_Work_Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20090925 Publication_Time: Unknown Title: FEMA CASE 07-04-4945S 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). In addition to the preceding, required text, the Abstract should also describe the projection and coordinate system as well as a general statement about horizontal accuracy. 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: 20090925 Currentness_Reference: FIRM and FIS Effective Date Status: Progress: In work Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -90.398512 East_Bounding_Coordinate: -81.646495 North_Bounding_Coordinate: 36.695102 South_Bounding_Coordinate: 34.906274 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: hydrology Theme_Keyword: environment Theme_Keyword: inlandWaters Theme_Keyword: structure Theme_Keyword: transportation Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: FEMA NFIP Topic Category Theme_Keyword: DFIRM Theme_Keyword: FIRM Theme_Keyword: FEMA Flood Hazard Zone Theme_Keyword: DFIRM Database Theme_Keyword: Special Flood Hazard Area Theme_Keyword: Digital Flood Insurance Rate Map Theme_Keyword: NFIP Theme_Keyword: Coastal Barrier Resources System Theme_Keyword: Riverine Flooding Theme_Keyword: Coastal Flooding Theme_Keyword: NFIP Theme_Keyword: Base Flood Elevation Theme_Keyword: SFHA Theme_Keyword: Flood Insurance Rate Map Theme_Keyword: Floodway Place: Place_Keyword_Thesaurus: None Place_Keyword: REGION 04 Place_Keyword: STATE TN Place_Keyword: COUNTY UNION Place_Keyword: COUNTY-FIPS 173 Place_Keyword: COMMUNITY UNION COUNTY AND UNINCORPORATED AREAS Place_Keyword: FEMA-CID 47173C Place_Keyword: COMMUNITY UNION COUNTY AND UNINCORPORATED AREAS Place_Keyword: FEMA-CID 470194 Place_Keyword: COMMUNITY CITY OF PLAINVIEW Place_Keyword: FEMA-CID 470417 Place_Keyword: COMMUNITY CITY OF LUTTRELL Place_Keyword: FEMA-CID 470209 Place_Keyword: COMMUNITY CITY OF MAYNARDVILLE Place_Keyword: FEMA-CID 470210 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 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Federal Emergency Management Agency Contact_Address: Address_Type: mailing 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: http://www.fema.gov/msc Cross_Reference: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20070820 Title: Flood Insurance Rate Map, Union County Tennessee and Incorporated Areas Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Online_Linkage: http://www.fema.gov/msc Cross_Reference: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20080608 Title: Flood Insurance Study, Union County Tennessee and Incorporated Areas Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Online_Linkage: http://www.fema.gov/msc Cross_Reference: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20070802 Title: Raster FIRM, Union County Tennessee Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Online_Linkage: http://www.fema.gov/msc Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: 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. 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 exp ected 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 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. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: 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. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20080930 Title: Flood Insurance Study Report, Union County Tennessee and Incorporated Areas Other Citation Details: Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20080930 Source_Currentness_Reference: FIRM and FIS Effective Date Source_Citation_Abbreviation: FIS1 Source_Contribution: Spatial and attribute information, for bfes, cross sections and floodplain widths Source_Information: Source_Citation: Citation_Information: Originator: NOAA, National Geodetic Survey Publication_Date: 20040101 Title: Benchmarks Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20061208 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: BASE1 Source_Contribution: Benchmarks Source_Information: Source_Citation: Citation_Information: Originator: State of Tennessee Department of Finance and Administration, GIS Department Publication_Date: 20060328 Title: Political Boundaries Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050301 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: BASE2 Source_Contribution: Digital political boundaries Source_Information: Source_Citation: Citation_Information: Originator: State of Tennessee Department of Finance and Administration, GIS Department Publication_Date: 20060328 Title: Transportation Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050301 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: BASE3 Source_Contribution: Transportation Source_Information: Source_Citation: Citation_Information: Originator: State of Tennessee Department of Finance and Administration, GIS Department Publication_Date: 20060328 Title: Hydrology Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20050301 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: BASE4 Source_Contribution: Hydrology Source_Information: Source_Citation: Citation_Information: Originator: USGS Publication_Date: Unknown Title: USGS Quad Index Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: Unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: BASE5 Source_Contribution: USGS Quad Index 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. Process_Date: 20080608 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dennis Pederson Contact_Organization: State of Tennessee Office of Finance and Administration, GIS Department Contact_Position: Director of GIS Services Contact_Address: Address_Type: mailing and physical address Address: 312 8th Ave. North, Suite 1600 City: Nashville State_or_Province: TN Postal_Code: 37243 Country: USA Contact_Voice_Telephone: 615-741-9356 Contact_Facsimile_Telephone: 615-532-0471 Contact_Electronic_Mail_Address: dennis.pederson@state.tn.us Hours_of_Service: 8am-4pm Contact_Instructions: Contact State of Tennessee, Department of Finance and Administration, GIS Department Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1983 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 4100 Lambert_Conformal_Conic: Standard_Parallel: 35.25 Standard_Parallel: 36.4166667 Longitude_of_Central_Meridian: -86.000000 Latitude_of_Projection_Origin: 34.333333 False_Easting: 1968500.00000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.304801 Ordinate_Resolution: 0.304801 Planar_Distance_Units: survey feet Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.25 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 10 Altitude_Distance_Units: feet Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: S_BFE Entity_Type_Definition: Location and attributes for base flood elevations lines shown on DFIRM Entity_Type_Definition_Source: 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/plan/prevent/fhm/dl_cgs.shtm) Detailed_Description: Entity_Type: Entity_Type_Label: S_FIRM_Pan Entity_Type_Definition: Location and attributes for DFIRM hardcopy map panels Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Fld_Haz_Ar Entity_Type_Definition: Location and attributes flood insurance risk zones on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Fld_Haz_Ln Entity_Type_Definition: Location and attributes for boundaries of flood insurance risk zones on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Label_Ld Entity_Type_Definition: Location and attributes for leader lines on transportation and hydrography labels shown on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Label_Pt Entity_Type_Definition: Location and attributes for transportation and hydrography labels shown on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Perm_Bmk Entity_Type_Definition: Location and attributes for bench marks on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Pol_Ar Entity_Type_Definition: Location and attributes for political jurisdictions shown on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Pol_Ln Entity_Type_Definition: Location and attributes for political boundaries shown on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Quad_Index Entity_Type_Definition: Location and attributes for USGS quadrangle maps covering the DFIRM area. Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Trnsport_Ln Entity_Type_Definition: Location and attributes for transportation features shown on the DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_Wtr_Ln Entity_Type_Definition: Location and attributes for hydrography features shown on DFIRM Entity_Type_Definition_Source: 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) Detailed_Description: Entity_Type: Entity_Type_Label: S_XS Entity_Type_Definition: Location and attributes for cross-section lines in the area covered by the DFIRM Entity_Type_Definition_Source: 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/plan/prevent/fhm/dl_cgs.shtm) 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 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 S_FIRM_Pan S_Fld_Haz_Ar S_Fld_Haz_Ln S_Label_Ld S_Label_Pt S_Perm_Bmk S_Pol_Ar S_Pol_Ln S_Quad_Index S_Trnsport_Ln S_Wtr_Ln Study_Info Entity_and_Attribute_Detail_Citation: NP values were used in tables where attribute information was not provided Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Tennessee, Department of Finance and Administration, GIS Department Contact_Person: Dennis Pederson Contact_Position: Director of GIS Services Contact_Address: Address_Type: mailing and physical address Address: 312 8th Ave. North, Suite 1600 City: Nashville State_or_Province: TN Postal_Code: 37243 Country: USA Contact_Voice_Telephone: 615-741-1534 Contact_Facsimile_Telephone: 615-532-0471 Contact_Electronic_Mail_Address: dennis.pederson@state.tn.us Hours_of_Service: 8am - 4pm Contact_Instructions: Contact State of Tennessee, Department of Finance and Administration, GIS Department 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://gis.state.tn.us/mapping.html Fees: Contact Distributor Ordering_Instructions: See point of contact Metadata_Reference_Information: Metadata_Date: 20070424 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ranko Pudar Contact_Organization: Watershed IV Alliance Contact_Address: Address_Type: mailing Address: 400 Northpark Town Center 1000 Abernathy Road, NE Suite 900 City: Atlanta State_or_Province: Georgia Postal_Code: 30328 Country: USA Contact_Voice_Telephone: 1-678-808-8800 Contact_Electronic_Mail_Address: ranko_pudar@urscorp.com Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Extensions: Online_Linkage: http://hazards.fema.gov Online_Linkage: http://www.epsg.org Profile_Name: FEMA NFIP Metadata Content and Format Standard