Name: Base Flood Elevation (BFE) Lines

Display Field: DFIRM_ID

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: This dataset contains information about the Base Flood Elevations (BFE) within a study area. BFE lines indicate the rounded whole-foot water surface elevation of the 1-percent-annual-chance flood. The spatial elements representing BFE features are lines extending from Special Flood Hazard Area (SFHA) boundary to SFHA boundary. The BFE lines will have no visible gaps or overshoots between the SFHA boundary and the end of the BFE line at the publication scale of the DFIRM. However, the ends of the BFE lines are not necessarily snapped precisely to the SFHA boundary. Each BFE is represented by a single line. The Base Flood Elevation (BFE) information is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally if there are any riverine AE zones, BFE lines are required. While BFE lines are depicted as wavy lines on the hardcopy FIRM, they should be primarily straight lines in the spatial data, although they may bend consistent with procedures described in Volume 1 of these Guidelines. The Digital Flood Insurance Rate Map (DFIRM) 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 (100 year), the 0.2-percent-annual-chance flood event (500 year), and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (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.

Copyright Text: FEMA

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 250000

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: 71909.87440000099
YMin: 216746.5004
XMax: 792190.5759
YMax: 779269.3956
Spatial Reference: 3087  (3087)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSLSSolid
Color: [0, 0, 0, 255]
Width: 2
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 )
• BFE_LN_ID ( type: esriFieldTypeString, alias: BFE_LN_ID, length: 32 )
• ELEV ( type: esriFieldTypeDouble, alias: ELEV )
• LEN_UNIT ( type: esriFieldTypeString, alias: LEN_UNIT, length: 16 )
• V_DATUM ( type: esriFieldTypeString, alias: V_DATUM, length: 17 )
• SOURCE_CIT ( type: esriFieldTypeString, alias: SOURCE_CIT, length: 21 )
• PRODUCT_ID ( type: esriFieldTypeString, alias: PRODUCT_ID, length: 20 )
• DESCRIPT ( type: esriFieldTypeString, alias: DESCRIPT, length: 30 )
• FGDLAQDATE ( type: esriFieldTypeDate, alias: FGDLAQDATE, length: 8 )
• AUTOID ( type: esriFieldTypeInteger, alias: AUTOID )
• SHAPE.LEN ( type: esriFieldTypeDouble, alias: SHAPE.LEN )
• COUNTY ( type: esriFieldTypeString, alias: COUNTY, length: 20 )
• UPDATE_DATE ( type: esriFieldTypeDate, alias: UPDATE_DATE, length: 8 )
• GFID ( type: esriFieldTypeString, alias: GFID, length: 36 )

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

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