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Description: Latest Study Effective Date 03/22/2022, Latest LOMR Effective Date 11/06/2024The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters Of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis. The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM 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 FIRM Database is derived from Flood Insurance Studies (FISs), previously published 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.The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all FIRM Databases and corresponding LOMRs available on the publication date of the data set. The specification for the horizontal control of FIRM Databases is consistent with those required for mapping at a scale of 1:12,000. This file is georeferenced to the Earth's surface using the Geographic Coordinate System (GCS) and North American Dataum of 1983 (NSRS-2007).This layer is derived from NFHL Product ID NFHL_06073C, San Diego County-wide, with Latest Study Effective Date and Latest LOMR Effective Date as mentioned at the top of this section in bold-faced type. with the additional County of San Diego, Department of Public Works, Flood Control Engineering-derived attribute FLOODPLAI.
Service Item Id: 12650bc230144179a0cbc5987b874748
Copyright Text: SanGIS; Federal Emergency Management Agency; County of San Diego, Department of Public Works, Flood Control Engineering.
Spatial Reference:
102646
(2230)
Initial Extent:
XMin: 6126731.83081282
YMin: 1757196.0893492692
XMax: 6636613.470004207
YMax: 2147501.1612638095
Spatial Reference: 102646
(2230)
Full Extent:
XMin: 6149908.268957883
YMin: 1774937.2289817333
XMax: 6613437.03185913
YMax: 2129760.0216313154
Spatial Reference: 102646
(2230)
Units: esriFeet
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