Name: Flood Hazard Areas
Display Field: DFIRM_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
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.
Definition Expression: N/A
Copyright Text: The hardcopy FIRM and FIRM Database and the accompanying FIS 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 match the hardcopy map exactly. Acknowledgement of FEMA would be appreciated in products derived from these data.
Default Visibility: true
MaxRecordCount: 1000
Supported Query Formats: JSON, AMF, geoJSON
Min Scale: 0
Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
Can Modify Layer: true
Can Scale Symbols: false
Use Standardized Queries: true
Supports Datum Transformation: true
Extent:
XMin: -9212054.7668
YMin: 4084741.332199998
XMax: -9191182.4619
YMax: 4108454.7531000003
Spatial Reference: 102100
(3857)
Drawing Info:
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Field 2: ZONE_SUBTY
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Field Delimiter: ,
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Value: A,
Label: A
Description:
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Description:
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Value: AE,FLOODWAY
Label: AE, FLOODWAY
Description:
Symbol:
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Value: X,0.2 PCT ANNUAL CHANCE FLOOD HAZARD
Label: X, 0.2 PCT ANNUAL CHANCE FLOOD HAZARD
Description:
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Labeling Info:
Advanced Query Capabilities:
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Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
HasZ: true
HasM: false
Has Attachments: false
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
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OBJECTID
(
type: esriFieldTypeOID
, alias: OBJECTID
)
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DFIRM_ID
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type: esriFieldTypeString
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, length: 6
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VERSION_ID
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SFHA_TF
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