Federal Emergency Management Agency 20100301 Washington, DC Federal Emergency Management Agency Alachua County, Baker County, Bay County, Charlotte County, Columbia County, Dixie County, Escambia County, Flagler County, Gadsden County, Gilchrist County, Gulf County, Hamilton County, Hillsborough County, Lafayette County, Lake County, Lee County, Leon County, Madison County, Marion County, Okaloosa County, Osceola County, Orange County, Pinellas County, Santa Rosa County, Seminole County, St. Johns County, Suwannee County, Taylor County, Union County, Volusia County. www.msc.fema.gov This dataset contains information about the Base Flood Elevations (BFE) within a study area. BFE lines indicate the rounded whole-foot water surface elevation of the 1-percent-annual-chance flood. The spatial elements representing BFE features are lines extending from Special Flood Hazard Area (SFHA) boundary to SFHA boundary. The BFE lines will have no visible gaps or overshoots between the SFHA boundary and the end of the BFE line at the publication scale of the DFIRM. However, the ends of the BFE lines are not necessarily snapped precisely to the SFHA boundary. Each BFE is represented by a single line. The Base Flood Elevation (BFE) information is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally if there are any riverine AE zones, BFE lines are required. While BFE lines are depicted as wavy lines on the hardcopy FIRM, they should be primarily straight lines in the spatial data, although they may bend consistent with procedures described in Volume 1 of these Guidelines. 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 (100 year), the 0.2-percent-annual-chance flood event (500 year), 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 FEMA. This dataset is an update to the DFIRM_BFE_SEP09.shp layer. 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. ** The following FEMA DFIRM information is from the frm_gsalb.pdf ** Table: S_BFE The Base Flood Elevation (BFE) table is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally if there are any riverine AE zones, BFE lines are required. The S_BFE table contains information about the BFEs within a study area. A spatial file with locational information also corresponds with this data table. BFE lines indicate the rounded whole-foot water surface elevation of the 1-percent-annual-chance flood. The spatial elements representing BFE features are lines extending from Special Flood Hazard Area (SFHA) boundary to SFHA boundary. The BFE lines will have no visible gaps or overshoots between the SFHA boundary and the end of the BFE line at the publication scale of the DFIRM. However, the ends of the BFE lines are not necessarily snapped precisely to the SFHA boundary. Each BFE is represented by a single line. While BFE lines are depicted as wavy lines on the hardcopy FIRM, they should be primarily straight lines in the spatial data, although they may bend consistent with procedures described in Volume 1 of these Guidelines. Table: D_Length_Units LEN_LID LEN_UNIT 1000 CENTIMETERS 1010 FEET 1020 INCHES 1030 KILOMETERS 1040 METERS 1050 MILES 1060 MILLIMETERS 20010606 20100301 publication date Complete As needed -87.42904 -79.872251 30.983191 24.492815 None inlandWaters None Riverine flooding DFIRM Floodway NFIP Flood Insurance Rate Map Digital Flood Insurance Rate Map Special Flood Hazard Area FEMA Flood Hazard Zone FIRM DFIRM Database SFHA None inlandWaters ISO 19115 Topic Categories inlandWaters None PINELLAS COUNTY SANTA ROSA COUNTY ALACHUA COUNTY GILCHRIST COUNTY GADSDEN COUNTY LAFAYETTE COUNTY FLAGLER COUNTY TAYLOR COUNTY SEMINIOLE COUNTY SUWANNEE COUNTY OKALOOSA COUNTY DIXIE COUNTY MADISON COUNTY BAKER COUNTY UNION COUNTY OSCEOLA COUNTY LEE COUNTY ESCAMBIA COUNTY VOLUSIA COUNTY HILLSBOROUGH COUNTY LEON COUNTY MARION COUNTY COLUMBIA COUNTY BAY COUNTY GULF COUNTY CHARLOTTE COUNTY HAMILTON COUNTY LAKE COUNTY ST. JOHNS COUNTY ORANGE COUNTY FLORIDA None The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html Federal Emergency Management Agency Federal Insurance and Mitigation Administration mailing

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Washington District of Columbia 20472 US 1-800-358-9616 www.msc.fema.gov FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html For FGDL Software: http://www.fgdl.org/software.html Technical Support: http://www.fgdl.org/fgdlfeed.html FEMA Federal Emergency Management Agency 20060616 document Washington, DC Federal Emergency Management Agency FEMA Map Service Center http://msc.fema.gov ** What are you looking for? **** DFIRM Databases Guidelines and Specifications for Flood Hazard Mapping Partners http://www.fema.gov/library/viewRecord.do?id=2206 ** Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Database ** Appendix L: Part 1 ** Appendix L: Part 2 Federal Emergency Management Agency 20060616 Raster Digital Data Washington, DC Federal Emergency Management Agency Federal Emergency Management Agency 20060616 Map Washington, DC Federal Emergency Management Agency GeoPlan relied on the integrity of the attribute information within the original data. When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot. Data contained in the DFIRM Database files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied. The DFIRM Database consists of 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. 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. Federal Emergency Management Agency 20070928 Vector digital data Washington, D.C. Federal Emergency Management Agency Scales of source are: 6000, 12000 Grid of FIRM panels created for this Flood Insurance Study. None 20070928 Effective date STUDY1 Spatial and Attribute Information Federal Emergency Management Agency 20070928 Map and report Washington, D.C. Federal Emergency Management Agency Scales of source are: 4800, 6000, 12000, 24000 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: fema96.shp None 20070928 FIS Effective dates FIS1 Spatial and Attribute Information U.S. Geological Survey 19940101 Remote sensing image Reston, VA U.S. Geological Survey The digital orthophoto quadrangle (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the Universal Transverse Mercator Projection (UTM) on the North American Datum of 1983 (NAD83). The imagery is based on panchromatic black and white (or color infra-red) NAPP or NAPP-like photography. 12000 None 19940101 Ground conditions FEMA Spatial and Attribute Information U.S. Geological Survey 19990101 Vector digital data Redlands, CA ESRI Scale of source data 24000 Grid of USGS 7.5-Minute Series Topographic Maps. None 19990101 publication date USGS1 Spatial and Attribute Information Federal Emergency Management Agency 20070928 Vector digital data Washington, D.C. Federal Emergency Management Agency Scale of source data 12000. Base map surface water features digitized from U.S. Geological Survey Digital Orthophoto Quadrangles. None 20070928 Effective date STUDY2 Spatial and Attribute Information U.S. Geological Survey 19940101 Vector digital data Reston, VA U.S. Geological Survey On selected FIRM panels, planimetric base map information was provided in digital format. These files were compiled at scales of 1:12,000 from aerial photography dated 1994 or later. Additional information was derived from U.S. Geological Survey (USGS) Digital Line Graphs. None 19940101 Ground conditions BASE1 Spatial and Attribute Information National Geodetic Survey 20070928 Vector digital data Silver Spring, MD National Geodetic Survey Scale of source 24000 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. None 20070928 Publication date NGS1 Spatial and Attribute Information 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. DOQ1, FIS1, STUDY1, NGS1, BASE1, STUDY2, USGS1 20060616 GeoPlan Center ordered the DFIRM database for the 20 available Florida Counties on 20071210. Data ordered contained both Unincorporated and Incorporated Areas. http://msc.fema.gov The data arrived on DVD for the following 20-counties; Alachua County Bay County Charlotte County Dixie County Escambia County Flagler County Gilchrist County Gulf County Lafayette County Lake County Leon County Monroe County - (NOTE: No BFE Data Available) Okaloosa County Osceola County Pinellas County Santa Rosa County Seminole County St. Johns County Suwannee County Volusia County The countywide Digital Flood Insurance Rate Map (DFIRM) Base Flood Elevations (BFE) Databases were originally called: S_BFE.shp The data was reprojected from various UTM projections to the FGDL Albers HPGN NAD83 projection. GeoPlan then added the following fields. COUNTY DESCRIPT SOURCEDATE FGDLAQDATE AUTOID The final process step involved the merging of the 19 counties to create one partial coverage statewide layer. GeoPlan 20071210 Data imported to ArcSDE and exported as a shapefile. GeoPlan 20080125 GeoPlan Center ordered the DFIRM database for Baker County Florida on 20080411. The data arrived on DVD and the order contained both Unincorporated and Incorporated Areas. http://msc.fema.gov The countywide Digital Flood Insurance Rate Map (DFIRM) Base Flood Elevations (BFE) Database was originally called: S_BFE.shp The data was reprojected from NAD_1983_StatePlane_Florida_North_FIPS_0903_Feet to the FGDL Albers HPGN NAD83 projection. GeoPlan then added the following fields. COUNTY DESCRIPT SOURCEDATE FGDLAQDATE AUTOID The final process step involved the merging of the Baker County information with the existing SDE layer DFIRM_BFE_DEC07, creating a partial coverage statewide layer consisting of 20 counties. GeoPlan 20080425 Data imported to ArcSDE and exported as a shapefile. GeoPlan 20080521 GeoPlan Center downloaded the DFIRM database for the following six Florida counties on 20090415. Columbia County Record Count: 248 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet Gadsden County Record Count: 436 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet Hillsborough County Record Count: 3168 NAD_1983_StatePlane_Florida_West_FIPS_0902_Feet Lee County Record Count: 632 NAD_1983_StatePlane_Florida_West_FIPS_0902_Feet Marion County Record Count: 42 NAD_1983_StatePlane_Florida_West_FIPS_0902_Feet Union County Record Count: 34 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet The downloaded data contained both Unincorporated and Incorporated Areas. http://msc.fema.gov The countywide Digital Flood Insurance Rate Map (DFIRM) Base Flood Elevations (BFE) Database was originally called: S_BFE.shp The data was reprojected to the FGDL Albers HPGN NAD83 HARN projection. GeoPlan then added the following fields. COUNTY DESCRIPT SOURCEDATE FGDLAQDATE AUTOID The final process step involved the merging the information for the six counties with the existing SDE layer DFIRM_BFE_APR08, creating a partial coverage statewide layer consisting of 26 counties. GeoPlan 20090204 GeoPlan Center downloaded the DFIRM database for the following two Florida counties on 20090910. Orange County Record Count: 760 NAD_1983_StatePlane_Florida_East_FIPS_0901_Feet Taylor County Record Count: 229 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet The downloaded data contained both Unincorporated and Incorporated Areas. http://msc.fema.gov The countywide Digital Flood Insurance Rate Map (DFIRM) Base Flood Elevations (BFE) Database was originally called: S_BFE.shp The data was reprojected to the FGDL Albers HPGN NAD83 HARN projection. GeoPlan then added the following fields. COUNTY DESCRIPT SOURCEDATE FGDLAQDATE The final process step involved the merging the information for the two counties with the existing SDE layer DFIRM_BFE_FEB09, creating a partial coverage statewide layer consisting of 28 counties. GeoPlan 20090910 GeoPlan Center downloaded the DFIRM database for the following two Florida counties on 20100301. Hamilton County Record Count: 253 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet Madison County Record Count: 176 NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet The downloaded data contained both Unincorporated and Incorporated Areas. http://msc.fema.gov The countywide Digital Flood Insurance Rate Map (DFIRM) Base Flood Elevations (BFE) Database was originally called: S_BFE.shp The data was reprojected to the FGDL Albers HPGN NAD83 HARN projection. GeoPlan then added the following fields. COUNTY DESCRIPT SOURCEDATE FGDLAQDATE The final process step involved the merging the information for the two counties with the existing SDE layer DFIRM_BFE_SEP09, creating a partial coverage statewide layer consisting of 30 counties. GeoPlan 20100301 String 12660 DFIRM_BFE_MAR10 DFIRM_BFE_MAR10.DBF FEMA FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. BFE_LN_ID Primary key for table lookup. Assigned by table creator. FEMA ELEV BFE. The rounded, whole-foot elevation of the 1-percent-annual-chance flood. This is the value of the BFE that is printed next to the BFE line on the FIRM. FEMA LEN_UNIT BFE Units. This unit indicates the measurement system used for the BFEs. Normally this would be feet. Acceptable values for this field are listed in the D_Length_Units table. FEMA V_DATUM Vertical Datum. The vertical datum indicates the reference surface from which the flood elevations are measured. Normally this would be North American Vertical Datum of 1988 for new studies. Acceptable values for this field are listed in the D_V_Datum table. FEMA SOURCE_CIT Source Citation. Abbreviation used in the metadata file when describing the source information for the S_BFE table. FEMA COUNTY The county name. GeoPlan DESCRIPT Based on fields [ELEV] and [LEN_UNIT]. GeoPlan SOURCEDATE The date the Source created the data. GeoPlan FGDLAQDATE The date FGDL acquired the data from the Source. GeoPlan The DFIRM Database is made up of several data themes containing both spatial and attribute information. These data together represent the current flood risk for the subject area as identified by FEMA. The attribute tables include SFHA locations, flood zone designations, BFEs, political entities, cross-section locations, FIRM panel information, and other data related to the NFIP. Appendix L of FEMA'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_base_index 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_wtr_ln s_xs s_label_pt Florida Geographic Data Library (FGDL) mailing

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Gainesville Florida 32611-5706 US Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html Web site: http://www.fgdl.org FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html For FGDL Software: http://www.fgdl.org/software.html Technical Support: http://www.fgdl.org/fgdlfeed.html DOWNLOADABLE DATA The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html Printed FIRMs and Raster DFIRMs that match this data set are available from FEMA at the Map Service Center, cited above. Contact Distributor Contact Distributor Federal Emergency Management Agency Federal Insurance and Mitigation Administration mailing

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Washington District of Columbia 20472 US 1-800-358-9616 www.msc.fema.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time