Name: Effective FEMA Flood Maps

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.

Copyright Text:

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 250000

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: true

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -8436795.773
YMin: 4643337.545
XMax: -8351473.5372
YMax: 4842649.6332
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: FLD_ZONE
Field 2: ZONE_SUBTY
Field 3: N/A
Field Delimiter: ,
Default Symbol:
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Default Label: N/A
UniqueValueInfos:
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  Label: AE, FLOODWAY
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Transparency: 50
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• DFIRM_ID ( type: esriFieldTypeString, alias: DFIRM_ID, length: 6 )
• VERSION_ID ( type: esriFieldTypeString, alias: VERSION_ID, length: 11 )
• FLD_AR_ID ( type: esriFieldTypeString, alias: FLD_AR_ID, length: 32 )
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• FLD_ZONE ( type: esriFieldTypeString, alias: FLD_ZONE, length: 17 )
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• SFHA_TF ( type: esriFieldTypeString, alias: SFHA_TF, length: 1 )
• STATIC_BFE ( type: esriFieldTypeDouble, alias: STATIC_BFE )
• V_DATUM ( type: esriFieldTypeString, alias: V_DATUM, length: 17 )
• DEPTH ( type: esriFieldTypeDouble, alias: DEPTH )
• LEN_UNIT ( type: esriFieldTypeString, alias: LEN_UNIT, length: 16 )
• VELOCITY ( type: esriFieldTypeDouble, alias: VELOCITY )
• VEL_UNIT ( type: esriFieldTypeString, alias: VEL_UNIT, length: 20 )
• AR_REVERT ( type: esriFieldTypeString, alias: AR_REVERT, length: 17 )
• AR_SUBTRV ( type: esriFieldTypeString, alias: AR_SUBTRV, length: 57 )
• BFE_REVERT ( type: esriFieldTypeDouble, alias: BFE_REVERT )
• DEP_REVERT ( type: esriFieldTypeDouble, alias: DEP_REVERT )
• DUAL_ZONE ( type: esriFieldTypeString, alias: DUAL_ZONE, length: 1 )
• SOURCE_CIT ( type: esriFieldTypeString, alias: SOURCE_CIT, length: 21 )
• SHAPE ( type: esriFieldTypeGeometry, alias: SHAPE )
• SHAPE.AREA ( type: esriFieldTypeDouble, alias: SHAPE.AREA )
• SHAPE.LEN ( type: esriFieldTypeDouble, alias: SHAPE.LEN )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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