Parent Layer: Public Safety/Hazards

Name: FEMA Flood Hazard Areas

Display Field: DFIRM_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The FEMA Flood Hazard Layer represents the location and attributes of flood insurance risk zones from the 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 floodway, 100-year floodplain/SFHA (Special Flood Hazard Area), and the 500-year floodplain are all derived from this dataset. --Additional Information: Category: Hazard Purpose: The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards, " Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. The FIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The FIRM Database serves to archive the information collected during the Flood Risk Project. Update Frequency: As needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54347

Copyright Text: Bureau of Planning and Sustainability

Default Visibility: true

MaxRecordCount: 150

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -1.37172825349E7
YMin: 5658924.632600002
XMax: -1.35942767728E7
YMax: 5740423.473600002
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [205, 233, 247, 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: 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: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: SHAPE )
• 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 )
• STUDY_TYP ( type: esriFieldTypeString, alias: STUDY_TYP, length: 38 )
• FLD_ZONE ( type: esriFieldTypeString, alias: FLD_ZONE, length: 17 )
• ZONE_SUBTY ( type: esriFieldTypeString, alias: ZONE_SUBTY, length: 76 )
• 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_Length ( type: esriFieldTypeDouble, alias: SHAPE_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: SHAPE_Area )
• GFID ( type: esriFieldTypeString, alias: GFID, length: 36 )

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

  Iteminfo   Thumbnail   Metadata