Name: HCFCD_CoastalTransects

Display Field: DFIRM_ID

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: FEMA Coastal Transects contain information about the Coastal Transect Lines within the flood risk project area, if applicable. The transect lines indicate the location that was used to provide representative topographic information for the coastal flood models used. Hydraulic analyses of coastal flood effects are executed along transects, which are cross sections taken perpendicular to the shoreline, representing a segment of coast with similar characteristics. Transect elevations are interpolated to delineate the coastal flood zones. The spatial elements representing coastal transects are lines that generally extend from offshore all the way across the coastal floodplain. Transects can also extend seaward when wave runup modeling is used to determine coastal flood hazards. This information is needed for the Transect Locator Map table and Coastal Transect Parameters table in the FIS report. Downloaded 1/16/2026 by Harris County Engineering Department GIS from FEMA NFHL Status Page. (http://www.floodmaps.fema.gov/NFHL/status.shtml).

Copyright Text: FEMA

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 3194495.45709229
YMin: 13751885.9951172
XMax: 3266242.19848633
YMax: 13886462.9246826
Spatial Reference: 102740 (2278)

Drawing Info:

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HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• DFIRM_ID (type: esriFieldTypeString, alias: DFIRM_ID, SQL Type: sqlTypeOther, length: 6, nullable: true, editable: true)
• VERSION_ID (type: esriFieldTypeString, alias: VERSION_ID, SQL Type: sqlTypeOther, length: 11, nullable: true, editable: true)
• TRAN_LN_ID (type: esriFieldTypeString, alias: TRAN_LN_ID, SQL Type: sqlTypeOther, length: 32, nullable: true, editable: true)
• TBASELN_ID (type: esriFieldTypeString, alias: TBASELN_ID, SQL Type: sqlTypeOther, length: 32, nullable: true, editable: true)
• TRAN_NO (type: esriFieldTypeString, alias: TRAN_NO, SQL Type: sqlTypeOther, length: 4, nullable: true, editable: true)
• METHOD (type: esriFieldTypeString, alias: METHOD, SQL Type: sqlTypeOther, length: 24, nullable: true, editable: true)
• XCOORD (type: esriFieldTypeDouble, alias: XCOORD, SQL Type: sqlTypeOther, nullable: true, editable: true)
• YCOORD (type: esriFieldTypeDouble, alias: YCOORD, SQL Type: sqlTypeOther, nullable: true, editable: true)
• WTR_NM (type: esriFieldTypeString, alias: WTR_NM, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
• V_DATUM (type: esriFieldTypeString, alias: V_DATUM, SQL Type: sqlTypeOther, length: 17, nullable: true, editable: true)
• DATUM_CONV (type: esriFieldTypeDouble, alias: DATUM_CONV, SQL Type: sqlTypeOther, nullable: true, editable: true)
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• BEACH_SET (type: esriFieldTypeString, alias: BEACH_SET, SQL Type: sqlTypeOther, length: 63, nullable: true, editable: true)
• SHORE_TYP (type: esriFieldTypeString, alias: SHORE_TYP, SQL Type: sqlTypeOther, length: 26, nullable: true, editable: true)
• CST_MDL_ID (type: esriFieldTypeString, alias: CST_MDL_ID, SQL Type: sqlTypeOther, length: 32, nullable: true, editable: true)
• EVENT_TYP (type: esriFieldTypeString, alias: EVENT_TYP, SQL Type: sqlTypeOther, length: 37, nullable: true, editable: true)
• SWEL (type: esriFieldTypeDouble, alias: SWEL, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SIG_HT (type: esriFieldTypeDouble, alias: SIG_HT, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SIG_PD (type: esriFieldTypeDouble, alias: SIG_PD, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CON_HT (type: esriFieldTypeDouble, alias: CON_HT, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CON_PD (type: esriFieldTypeDouble, alias: CON_PD, SQL Type: sqlTypeOther, nullable: true, editable: true)
• MEAN_HT (type: esriFieldTypeDouble, alias: MEAN_HT, SQL Type: sqlTypeOther, nullable: true, editable: true)
• MEAN_PD (type: esriFieldTypeDouble, alias: MEAN_PD, SQL Type: sqlTypeOther, nullable: true, editable: true)
• FETCH_LEN (type: esriFieldTypeDouble, alias: FETCH_LEN, SQL Type: sqlTypeOther, nullable: true, editable: true)
• FTCHLNUNIT (type: esriFieldTypeString, alias: FTCHLNUNIT, SQL Type: sqlTypeOther, length: 16, nullable: true, editable: true)
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• LU_SOURCE (type: esriFieldTypeString, alias: LU_SOURCE, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• RUP (type: esriFieldTypeDouble, alias: RUP, SQL Type: sqlTypeOther, nullable: true, editable: true)
• ELEV_UNIT (type: esriFieldTypeString, alias: ELEV_UNIT, SQL Type: sqlTypeOther, length: 16, nullable: true, editable: true)
• WHAFIS_TF (type: esriFieldTypeString, alias: WHAFIS_TF, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
• OVERTOP_TF (type: esriFieldTypeString, alias: OVERTOP_TF, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
• BW_HGT_TF (type: esriFieldTypeString, alias: BW_HGT_TF, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
• HVFLOW_TF (type: esriFieldTypeString, alias: HVFLOW_TF, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
• VZONE_EXT (type: esriFieldTypeString, alias: VZONE_EXT, SQL Type: sqlTypeOther, length: 28, nullable: true, editable: true)
• SETUP_DPTH (type: esriFieldTypeDouble, alias: SETUP_DPTH, SQL Type: sqlTypeOther, nullable: true, editable: true)
• WAVE_02PCT (type: esriFieldTypeString, alias: WAVE_02PCT, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
• LEN_UNIT (type: esriFieldTypeString, alias: LEN_UNIT, SQL Type: sqlTypeOther, length: 16, nullable: true, editable: true)
• TIME_UNIT (type: esriFieldTypeString, alias: TIME_UNIT, SQL Type: sqlTypeOther, length: 7, nullable: true, editable: true)
• SOURCE_CIT (type: esriFieldTypeString, alias: SOURCE_CIT, SQL Type: sqlTypeOther, length: 21, nullable: true, editable: true)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: HCFCD_CoastalTransects
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/5/2026 6:25:38 PM

Schema Last Edit Date: 3/5/2026 6:25:38 PM

Data Last Edit Date: 3/5/2026 6:25:38 PM

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