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Service Description: The Watershed Boundary Dataset (WBD) in Texas was developed as a collaborative product by TWDB, USDA Natural Resources Conservation Service (NRCS) and USGS. The WBD is a seamless and consistent national Geographic Information System (GIS) database at a scale of 1:24,000, which has been extensively reviewed and matches to a minimum the USGS topographical 7.5 minute quadrangle map series. The traditional 8-digit hydrologic units (HUCs) have been further divided into smaller units called watersheds (10-digit HUCs) and sub-watersheds (12-digit HUCs). The watershed level is typically 40,000 to 250,000 acres, and the sub-watershed level is typically 10,000 to 40,000 acres with some as small as 3,000 acres. Federal Certification of the WBD for Texas was completed jointly by the NRCS and USGS in January 2009.This dataset, which has been developed to national standards (USGS and USDA/NRCS 2009), is intended to be managed in concert with the National Hydrography Dataset (NHD) as part of the Stewardship Program, supported by the U.S. Geological Survey with partner Federal, State and Local entities. Continuing development of the WBD in Texas will be completion of the 10 and 12-digit delineations of coastal watersheds. Some of the low lying coastal HUCs were not completed due to a lack of ultra high resolution elevation data necessary to determine the watershed boundaries.
Map Name: Watershed_Boundaries
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Description: The Watershed Boundary Dataset (WBD) in Texas was developed as a collaborative product by TWDB, USDA Natural Resources Conservation Service (NRCS) and USGS. The WBD is a seamless and consistent national Geographic Information System (GIS) database at a scale of 1:24,000, which has been extensively reviewed and matches to a minimum the USGS topographical 7.5 minute quadrangle map series. The traditional 8-digit hydrologic units (HUCs) have been further divided into smaller units called watersheds (10-digit HUCs) and sub-watersheds (12-digit HUCs). The watershed level is typically 40,000 to 250,000 acres, and the sub-watershed level is typically 10,000 to 40,000 acres with some as small as 3,000 acres. Federal Certification of the WBD for Texas was completed jointly by the NRCS and USGS in January 2009.This dataset, which has been developed to national standards (USGS and USDA/NRCS 2009), is intended to be managed in concert with the National Hydrography Dataset (NHD) as part of the Stewardship Program, supported by the U.S. Geological Survey with partner Federal, State and Local entities. Continuing development of the WBD in Texas will be completion of the 10 and 12-digit delineations of coastal watersheds. Some of the low lying coastal HUCs were not completed due to a lack of ultra high resolution elevation data necessary to determine the watershed boundaries.
Service Item Id: 9ff30115978f4de2838b2f7ac9dd0a9d
Copyright Text: Texas Geographic Information Office, USGS, USDA-NRCS, TWDB
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.3278365094140572E7
YMin: 2722625.8435880747
XMax: -8892739.877159426
YMax: 4910135.398611924
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.21364311039E7
YMin: 2856042.5548
XMax: -1.00346738674E7
YMax: 4776718.687399998
Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Watershed Boundary Dataset
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Comments: The Watershed Boundary Dataset (WBD) in Texas was developed as a collaborative product by TWDB, USDA Natural Resources Conservation Service (NRCS) and USGS. The WBD is a seamless and consistent national Geographic Information System (GIS) database at a scale of 1:24,000, which has been extensively reviewed and matches to a minimum the USGS topographical 7.5 minute quadrangle map series. The traditional 8-digit hydrologic units (HUCs) have been further divided into smaller units called watersheds (10-digit HUCs) and sub-watersheds (12-digit HUCs). The watershed level is typically 40,000 to 250,000 acres, and the sub-watershed level is typically 10,000 to 40,000 acres with some as small as 3,000 acres. Federal Certification of the WBD for Texas was completed jointly by the NRCS and USGS in January 2009.This dataset, which has been developed to national standards (USGS and USDA/NRCS 2009), is intended to be managed in concert with the National Hydrography Dataset (NHD) as part of the Stewardship Program, supported by the U.S. Geological Survey with partner Federal, State and Local entities. Continuing development of the WBD in Texas will be completion of the 10 and 12-digit delineations of coastal watersheds. Some of the low lying coastal HUCs were not completed due to a lack of ultra high resolution elevation data necessary to determine the watershed boundaries.
Subject: The Watershed Boundary Dataset (WBD) in Texas was developed as a collaborative product by TWDB, USDA Natural Resources Conservation Service (NRCS) and USGS.
Category:
Keywords: Watershed Boundary Dataset (WBD),National Hydrography Dataset (NHD),Hydrologic Units (HUCs),Texas Geographic Information Office
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
Resampling: false
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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