Parent Layer: NFHL Baselines

Name: Transect Baselines

Display Field: DFIRM_ID

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The S_Tsct_Basln layer is required for all coastal studies. The S_Tsct_Basln spatial file contains information about the transect baseline used in the coastal flood hazard model. Typically, the S_Tsct_Basln represents the 0.0-foot elevation contour, the starting point for the transect and the measuring point for the coastal mapping. The spatial elements representing the transect baselines are lines. The file describes the transect baseline profile setting and must also include a reference to the vertical datum. When a coastal transect baseline and water lines are available for the same study reach, only the transect baseline shall be shown on the FIRM in order to eliminate overlaps. This information is used in the following tables in the FIS Report: Transect Locator Map, as well as in the Flooding Sources Included this FIS Report, Summary of Coastal Analyses, Summary of Topographic Elevation Data Used in Mapping and Coastal Transect Parameters. The spatial entities representing the transect baselines are lines. </SPAN></P></DIV></DIV></DIV>

Service Item Id: eda1cac5c4174a4b8832ad46def0b5d9

Copyright Text:

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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Max Scale: 0

Effective Min Scale: 100000

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Supports Statistics: true

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Supports Datum Transformation: true

Extent:

XMin: -77.38851985699995
YMin: 36.90800603100007
XMax: -76.23654924599998
YMax: 38.51480760000004
Spatial Reference: 4269  (4269)

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Supports Query With Current User: true

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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 )
• TBASELN_ID ( type: esriFieldTypeString, alias: TBASELN_ID, length: 32 )
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• R_END_DESC ( type: esriFieldTypeString, alias: R_END_DESC, length: 254 )
• V_DATUM ( type: esriFieldTypeString, alias: V_DATUM, length: 17 )
• WTR_NM ( type: esriFieldTypeString, alias: WTR_NM, length: 100 )
• SOURCE_CIT ( type: esriFieldTypeString, alias: SOURCE_CIT, length: 21 )
• GFID ( type: esriFieldTypeString, alias: GFID, length: 36 )
• SHAPE_Length ( type: esriFieldTypeDouble, alias: SHAPE_Length )

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

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