File Geodatabase Feature Class
Tags
Texas, Lakes
This layer contains existing* lakes and reservoirs in Texas. This boundary file was specifically designed for medium to large scale thematic mapping and analysis. * The definition of "existing" means 'built and in operation'. Existing reservoirs are reservoirs that contain 5,000 acre-feet or more.
The spatial data were obtained from the Texas Water Development Board. TWDB developed this layer from the 1:24,000 NHD dataset, hydrologic surveyed lake data, and existing reservoirs identified in the 1997 State Water Plan. The Attributes were modified to include only name, elevation, codes, types, and identification information. The coordinate system of this data is WGS 1984.
“Reservoir footprints that were not available in the NHD dataset or the hydrologic surveyed lake data were copied from the older, 1997 dataset. These include: Buffalo Lake; Addicks Reservoir; Barker Reservoir; Wallisville Lake; Lake Muenster and Lake Dunlap. Some of these lakes and/or reservoirs are used mainly for flood control. There are 2 missing 'reservoirs' that are used for flood control located in Hale County: 1) Lower Running Water Draw WS SCS Site 2 Dam; 2) Lower Running Water Draw WS SCS Site 3 Dam. NOTE: There are no footprints for these 2 flood control reservoirs. Footprint of J.D Murphree Wildlife Impoundment was acquired from the Texas Parks and Wildlife Department. Main polygon was edited by adding the 'intracoastal waterway' to the shapefile”. – TWDB.
Center for Geospatial Technology, Texas Tech University Texas Water Development Board
There are no access and use limitations for this item.
Extent
West | -104.030793 | East | -93.563544 |
North | 36.361637 | South | 25.980879 |
Maximum (zoomed in) | 1:5,000 |
Minimum (zoomed out) | 1:150,000,000 |
Center for Geospatial Technology, Texas Tech University Texas Water Development Board
Area of feature in internal units squared.
ESRI
Positive real numbers that are automatically generated.
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Feature geometry.
ESRI
Coordinates defining the features.
From NHD data
Area covered in square miles
From TWDB
From NHD data
From TWDB
Current reservoir name
Texas Water Development Board
Water use; i.e. municipal, irrigation, etc.
Texas Water Development Board
From TWDB
Original name assigned
Major river basin
Owner of reservoir or lake
Current status of lake/reservoir; i.e. built, planned, etc.
Texas Water Development Board
Geographical location
Texas Water Development Board
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
The spatial data was obtained from the Texas Water Development Board and are current as of 2007. The lakes and reservoirs were extracted from USGS 1:24,000 topo maps and TWDB surveyed lake data. The attributes were modified to include name, elevation, codes, types, and identification information.
This layer contains existing lakes and resevoirs in Texas. This boundary file was specifically designed for medium to large scale thematic mapping and analysis.
Reservoir footprints that were not available in the 1:24,000 NHD dataset or the hydrologic surveyed lake data were copied from the older, 1997 dataset. These include: Buffalo Lake; Addicks Reservoir; Barker Reservoir; Wallisville Lake; Lake Muenster and Lake Dunlap. Some of these lakes and/or reservoirs are used mainly for flood control.
There are 2 missing 'reservoirs' that are used for flood control located in Hale County: 1) Lower Running Water Draw WS SCS Site 2 Dam; 2) Lower Running Water Draw WS SCS Site 3 Dam. NOTE: There are no footprints for these 2 flood control reservoirs.
Footprint of J.D Murphree Wildlife Impoundment was acquired from the Texas Parks and Wildlife Department. Main polygon was edited by adding the 'intracoastal waterway' to the shapefile.
The definition of "EXISTING" means 'built and in operation'.
* Existing reservoirs are reservoirs that contain 5,000 acre-feet or more.
publication date
None
None. Acknowledgement of the Texas Water Development would be appreciated when using these data for derived products.
Center for Geospatial Technology, Texas Tech University
Texas Water Development Board
This dataset was derived from the 1:24K National Hydrography Dataset (NHD) for Texas. Each reservoir was carefully extracted using a location selection method based on an intersection between the TWDB Existing Reservoir dataset (1997) and the current 1:24K NHD surface water polygons. Each successful match in the existing NHD was checked for correctness and accuracy before acceptance into the TWDB_Reservoir dataset.
Dataset copied.
TWDB surveyed lakes were added to the dataset as priority. If polygons existed from the NHD dataset, TWDB surveyed lakes prevailed and replaced the NHD polygons. TWDB surveyed lakes were digitized from the 1995 TOP aerial imagery or the 2004 Texas NAIP imagery.
Dataset copied.
Unknown