Appendix L - Federal Emergency Management Agency

Appendix LL.8.9 Table: S_Fld_Haz_Ar [October 2011]This table is required for all Preliminary or Final FIRM Databases.The S_Fld_Haz_Ar table contains information about the flood hazards within the flood risk project area.A spatial file with location information also corresponds with this data table. These zones are used byFEMA to designate the SFHA and for insurance rating purposes. These data are the regulatory floodzones designated by FEMA. A spatial file with location information also corresponds with this data table.This information is needed for the following tables in the FIS report: Flooding Sources Included in thisFIS report, and Summary of Hydrologic and Hydraulic Analyses.The spatial elements representing the flood zones are polygons. The entire area of the jurisdiction(s)mapped by the FIRM should have a corresponding flood zone polygon. There is one polygon for eachcontiguous flood zone designated. Zone AR polygons should not be included in the S_Fld_Haz_Ar layer;these polygons should be included in the S_Zone_AR layer.The S_Fld_Haz_Ar table contains the following elements.DFIRM_ID R Study Identifier. For a single jurisdiction flood risk project, the value iscomposed of the two-digit State FIPS code and the four-digit FEMA CIDcode (e.g., 480001). For a countywide flood risk project, the value iscomposed of the two-digit State FIPS code, the three-digit county FIPScode, and the letter “C” (e.g., 48107C). Within each FIRM Database, theDFIRM_ID value will be identical.VERSION_ID R Version Identifier. Identifies the product version and relates the feature tostandards according to how it was created.FLD_AR_IDSTUDY_TYPRRPrimary key for table lookup. Assigned by table creator.Study Type. This describes the type of flood risk project performed forflood hazard identification. Acceptable values for this field are listed in theD_Study_Typ table.FLD_ZONE R Flood Zone. This is a flood zone designation. These zones are used byFEMA to designate the SFHAs and for insurance rating purposes. NOTE:The symbol ‘%’ is a reserved symbol in most software packages, so theword ‘percent’ was abbreviated to ‘PCT.’ Acceptable values for this fieldare listed in the D_Zone table. NOTE: AR Zones are now stored in theS_Zone_AR table and include the zone formerly stored in the AR_REVERTfield in the 2003 DFIRM Database specification.Guidelines and Standards forFlood Risk Analysis and Mapping Page L-55 Section L.8 Requirements for FIRM Databases