View In:   ArcGIS Online Map Viewer

Name: FEMA Preliminary - 500 yr Flood Plain

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.

Service Item Id: 8edb582251c5435dbe67e0cf4e162b5c

Copyright Text:

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 7521156.509842515
YMin: 610496.4396325499
XMax: 7615975.332349077
YMax: 724111.9767060429
Spatial Reference: 2913  (2913)

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Advanced Query Capabilities:

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Supports OrderBy: true
Supports Distinct: true
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Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
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: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• DFIRM_ID ( type: esriFieldTypeString, alias: DFIRM_ID, editable: true, nullable: true, length: 6, defaultValue: null, modelName: DFIRM_ID )
• VERSION_ID ( type: esriFieldTypeString, alias: VERSION_ID, editable: true, nullable: true, length: 11, defaultValue: null, modelName: VERSION_ID )
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• SFHA_TF ( type: esriFieldTypeString, alias: SFHA_TF, editable: true, nullable: true, length: 1, defaultValue: null, modelName: SFHA_TF )
• STATIC_BFE ( type: esriFieldTypeDouble, alias: STATIC_BFE, editable: true, nullable: true, defaultValue: null, modelName: STATIC_BFE )
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Templates:

• Name: FEMA Preliminary - 500 yr Flood Plain
  Description:
  Prototype:
  SOURCE_CIT: null
  DUAL_ZONE: null
  DFIRM_ID: null
  VERSION_ID: null
  FLD_AR_ID: null
  STUDY_TYP: null
  FLD_ZONE: null
  ZONE_SUBTY: null
  SFHA_TF: null
  STATIC_BFE: null
  V_DATUM: null
  DEPTH: null
  LEN_UNIT: null
  VELOCITY: null
  VEL_UNIT: null
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  DEP_REVERT: null
  
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Capabilities: Query

Sync Can Return Changes: false

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Supported Operations:   Query   Query Analytic   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata