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FEMAFloodDataService2 (FeatureServer)

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Service Description: Official FEMA National Flood Hazard Layers for all jurisdictions in Santa Clara County.

Service ItemId: f5a1eec2d6054fdb8df51cfc113adcc5

Has Versioned Data: false

Max Record Count: 44000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: False

Source Schema Changes Allowed: true

Has Views: true

Views

All Layers and Tables

Layers:

Description: The 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 Datum of 1983 (NSRS-2007).

These data were reprojected by the County Planning Office into our State Plane Coordinate System. According to the FEMA website, here are dates:

Planning Office Download Date: 2020-12-17.
Latest Study Effective Date: 2014-02-19.
Latest LOMR Effective Date: 2020-11-18.


Copyright Text: Santa Clara County Planning Office TeamGIS

Spatial Reference: PROJCS["NAD_1983_StatePlane_California_III_FIPS_0403_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",6561666.666666666],PARAMETER["False_Northing",1640416.666666667],PARAMETER["Central_Meridian",-120.5],PARAMETER["Standard_Parallel_1",37.06666666666667],PARAMETER["Standard_Parallel_2",38.43333333333333],PARAMETER["Latitude_Of_Origin",36.5],UNIT["Foot_US",0.3048006096012192]],VERTCS["North_American_Vertical_Datum_1988",VDATUM["North_American_Vertical_Datum_1988"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]

Initial Extent:
Full Extent:
Units: esriFeet

Child Resources:   Info

Supported Operations:   Query   ConvertFormat   Get Estimates