Existing reservoirs in the State of Texas beginning with the 1997 State Water Plan.
Purpose
This dataset was built to improve upon a retired reservoir dataset (1997) by incorporating the USGS 1:24K and TWDB surveyed lake data into one statewide reservoir coverage.
Supplemental Information
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.
Time Period of Content
Time Period Information
Multiple Dates/Times
Single Date/Time
Calendar Date
09/2007
Time of Day
unknown
Currentness Reference
publication date
Status
Progress
Complete
Maintenance and Update Frequency
As needed
Spatial Domain
Bounding Coordinates
West Bounding Coordinate
-104.030784
East Bounding Coordinate
-93.563537
North Bounding Coordinate
36.361631
South Bounding Coordinate
25.980875
Keywords
Theme
Theme Keyword Thesaurus
Existing Reservoirs
Theme Keyword
Reservoir
Theme Keyword
Lake
Theme Keyword
Surface Water
Theme Keyword
Texas
Place
Place Keyword
Texas
Place Keyword
USA
Access Constraints
None
Use Constraints
None. Acknowledgement of the Texas Water Development would be appreciated when using these data for derived products.
Point of Contact
Contact Information
Contact Person Primary
Contact Person
Mark Hayes, GISP
Contact Organization
TWDB
Contact Position
Mapping Coordinator
Contact Address
Address Type
mailing and physical address
Address
1700 North Congress Ave
Address
PO Box 13231
City
Austin
State or Province
Tx
Postal Code
78711-3231
Country
USA
Contact Voice Telephone
(512) 936-0828
Contact Facsimile Telephone
(512) 936-0812
Contact Electronic Mail Address
Mark.Hayes@twdb.state.tx.us
Hours of Service
Monday-Friday 7:00-4:00
Data Set Credit
Texas Water Development Board, U.S. Geological Survey National Hydrography Dataset
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
Data Quality Information
Lineage
Process Step
Process Description
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.
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.