Identification_Information: Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20021107 Title: TNMAP.SDE.HAMILTON_COUNTY_S_BFE Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other_Citation_Details: 47065C_20021107_metadata Online_Linkage: Server=10.172.194.69; Service=5151; Database=TNMap; User=sde; Version=sde.DEFAULT 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: 20021107 Currentness_Reference: FIRM and FIS effective date Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -85.396748 East_Bounding_Coordinate: -85.005064 North_Bounding_Coordinate: 35.433446 South_Bounding_Coordinate: 34.980780 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: HAMILTON COUNTY Place_Keyword: TENNESSEE 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: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 Cross_Reference: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20021107 Title: Flood Insurance Study, HAMILTON COUNTY, TENNESSEE 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: 20021107 Title: Flood Insurance Rate Map, HAMILTON COUNTY, TENNESSEE 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: 20021107 Title: Raster DFIRM, HAMILTON COUNTY, TENNESSEE 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: 20021107 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 Chattanooga, TN 19921016, City of Collegedale, TN 19760827, City of East Ridge, TN 19830801, Hamilton County, TN (Unincorporated Areas) 19940802, Town of Lookout Mountain, TN 19860901, City of Red Bank, TN 19900805, Town of Signal Mountain, TN 19760903, City of Soddy-Daisy, TN 19770211. FEMA has updated the FIS to include restudy information. The restudy information includes updated analyses for the following flooding sources: Fruedenberg Creek from the confluence with Middle Creek to a point approximately 1 mile upstream of the confluence with Middle Creek, Lick Branch from the confluence with North Chickamauga Creek to a point approximately 2,500 feet upstream of the confluence of Lick Branch Tributary 3, Lick Branch Tributary 1 from the confluence with Lick Branch to a point approximately 1.2 miles upstream of the confuence with Lick Branch, Lick Branch Tributary 2 from the confluence with Lick Branch to a point approximately 0.5 mile upstream of the confluence with Lick Branch, Lick Branch Tributary 3 from the confluence with Lick Branch to a point approximately 0.5 mile upstream of the confluence with Lick Branch, Middle Creek from a point approximately 1,100 feet downstream of Edwards Point Road to a point approximately 0.7 mile upstream of Middle Creek Road, North Chickamauga Creek from the confluence with Tennessee River to a point approximately 1 mile upstream of Dayton Pike, Poe Branch from the confluence with North Chickamauga Creek to a point approximatley 1,500 feet upstream of Card Road, Possum Creek from a point approximatley 1,600 feet downstream of U.S. Route 27 to a point approximately 1.8 miles upstream of U.S. Route 27, Rogers Branch from the confluence with Wolftever Creek to a point approximately 1.7 miles upstream of confluence of Rogers Branch Tributary, Rogers Branch Tributary from the confluence with Rogers Branch to a point approximately 500 feet upstream of Interstate 75, Stringers Branch from confluence with Mountain Creek to a point approximately 250 feet upstream of Poulmar Drive, Tennessee River from the county boundary to the Lake Chickamauga dam located approximately 19.4 miles upstream, Wolftever Creek from Hunter Road to McDonald Road, Wolftever Creek Tributary from the confluence with Wolftever Creek to a point approximately 2,200 feet upstream of Bill Reed Road. This work was completed in November 1999. The following Letters of Map Revision were also incorporated: City of East Ridge, Spring Creek - Hide Away Storage dated September 2, 1999; Hamilton County, Little Wolftever Creek - Ooltewah-Georgetown Road dated September 30, 1995; Hamilton County, Little Wolftever Creek - Ooltewah-Georgetown Road dated September 15, 1994. Annexations or deannexations by the Cities of Collegedale, Chattanooga, Soddy-Daisy, and the unincorporated areas of Hamilton County have also been incorporated. Source_Scale_Denominator: 6,000 9,600 12,000 24,000 Type_of_Source_Media: Paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19760827 Ending_Date: 20021107 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 marks, and some feature names. Source_Information: Source_Citation: Citation_Information: Originator: Federal Emergency Management Agency Publication_Date: 20021107 Title: HAMILTON COUNTY, TENNESSEE, 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: 6,000 12,000 24,000 Type_of_Source_Media: Digitized Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20021107 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: 2002 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: 20021107 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: Hamilton County GIS Department Publication_Date: 1997 Title: Hamilton County GIS Department base map Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Chattanooga, TN Publisher: Hamilton County GIS Department Other_Citation_Details: Planimetric base map files were provided in digital format by the Hamilton County GIS Department. These files were compiled at a scale of 1:1,200 from aerial photography dated March 1997. Source_Scale_Denominator: 1,200 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19970301 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: 24,000 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: 20021107 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\ag0312l\LOCALS~1\Temp\xml1A1.tmp Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1923 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: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 35.250000 Standard_Parallel: 36.416667 Longitude_of_Central_Meridian: -86.000000 Latitude_of_Projection_Origin: 34.333333 False_Easting: 1968500.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000328 Ordinate_Resolution: 0.000328 Planar_Distance_Units: survey feet Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: NGVD29 Altitude_Resolution: 1.000000 Altitude_Distance_Units: feet Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: TNMAP.SDE.HAMILTON_COUNTY_S_BFE Attribute: Attribute_Label: OBJECTID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: BFE_LN_ID Attribute: Attribute_Label: ELEV Attribute: Attribute_Label: LEN_UNIT Attribute: Attribute_Label: V_DATUM Attribute: Attribute_Label: SOURCE_CIT Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: Shape.len 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_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. Resource_Description: Downloadable Data 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: 20080630 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Federal Emergency Management Agency Contact_Person: REQUIRED: The person responsible for the metadata information. 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 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile