View In:   ArcGIS Online Map Viewer

Name: nfhl_s_lomr

Display Field: dfirm_id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The National Flood Hazard Layer (NFHL) is a compilation of GIS data that comprises a nationwide digital Flood Insurance Rate Map. The GIS data and services are designed to provide the user with the ability to determine the flood zone, base flood elevation, and floodway status for a particular location. It also has information about the NFIP communities, map panels, cross sections, hydraulic structures, Coastal Barrier Resource System, and base maps such as road, stream, and public land survey data. Through flood studies, FEMA produces Flood Insurance Study Reports, FIRM Panels, and FIRM Databases. FIRM Databases that become effective are incorporated into the NFHL. Updates to the NFHL are issued through Letters of Map Revision (LOMRs) and Letters of Map Amendment (LOMAs). Continuously updated, the NFHL serves as a Digital Flood Insurance Rate Map representing the current effective flood data for those communities where maps have been digitized. NFHL data can be viewed with widely available GIS software, including freely available programs that work with GIS shapefiles. For more information on the NFHL, see the online resources referenced herein. Using base maps: The minimum horizontal positional accuracy for base map hydrographic and transportation features used with the NFHL is the NSSDA radial accuracy of 38 feet. Letter of Map Amendment (LOMA) point locations are approximate. The location of the LOMA is referenced in the legal description of the letter itself. LOMA points can be viewed in the NFHL Interactive Map on the FEMA GeoPlatform.

Service Item Id: 2379c0738d9c478888e0ea32fb8cb30f

Copyright Text: Federal Emergency Management Agency (FEMA)

Default Visibility: true

MaxRecordCount: 100000

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: -158.20976380790182
YMin: 18.036626896474615
XMax: -65.68982948447291
YMax: 64.5963896969954
Spatial Reference: 4326  (4326)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [191, 217, 242, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
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: 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:

• 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 )
• lomr_id ( type: esriFieldTypeString, alias: LOMR_ID, editable: true, nullable: true, length: 32, defaultValue: null, modelName: LOMR_ID )
• eff_date ( type: esriFieldTypeDate, alias: EFF_DATE, editable: true, nullable: true, length: 8, defaultValue: null, modelName: EFF_DATE )
• case_no ( type: esriFieldTypeString, alias: CASE_NO, editable: true, nullable: true, length: 13, defaultValue: null, modelName: CASE_NO )
• scale ( type: esriFieldTypeString, alias: SCALE, editable: true, nullable: true, length: 5, defaultValue: null, modelName: SCALE )
• status ( type: esriFieldTypeString, alias: STATUS, editable: true, nullable: true, length: 12, defaultValue: null, modelName: STATUS )
• source_cit ( type: esriFieldTypeString, alias: SOURCE_CIT, editable: true, nullable: true, length: 21, defaultValue: null, modelName: SOURCE_CIT )
• gfid ( type: esriFieldTypeString, alias: GFID, editable: true, nullable: true, length: 36, defaultValue: null, modelName: GFID )
• Shape__Area ( type: esriFieldTypeDouble, alias: st_area(shape), editable: false, nullable: false, defaultValue: null, modelName: st_area(shape) )
• Shape__Length ( type: esriFieldTypeDouble, alias: st_length(shape), editable: false, nullable: false, defaultValue: null, modelName: st_length(shape) )
• objectid ( type: esriFieldTypeOID, alias: objectid, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )

Templates:

• Name: nfhl_s_lomr
  Description:
  Prototype:
  gfid: null
  dfirm_id: null
  version_id: null
  lomr_id: null
  eff_date: null
  case_no: null
  scale: null
  status: null
  source_cit: null
  
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query,Extract

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 Attachments   Query Analytic   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata