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Texas NHD Update

Texas NHD Update. National Stewardship Conference Denver, CO April 13-17, 2009. Did you know?. Texas has a land and water area of 268,581 square miles There are 254 counties in Texas Texas has 12 Level III Ecoregions and 56 Level IV Ecoregions. Diverse Hydrologic Landscape. State of Water.

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Texas NHD Update

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  1. Texas NHD Update National Stewardship Conference Denver, CO April 13-17, 2009

  2. Did you know? • Texas has a land and water area of 268,581 square miles • There are 254 counties in Texas • Texas has 12 Level III Ecoregions and 56 Level IV Ecoregions

  3. Diverse Hydrologic Landscape

  4. State of Water • Ongoing drought effecting majority of Texas

  5. State of Water cont’d • Demand for water expected to increase as population continues to rise. • Next 50 years: • Demand - 17M acre-feet to 22M acre-feet • Existing supply – 18M acre-feet to 15M acre-feet (reservoir sedimentation, aquifer depletion) • Management and Planning of water resources is crucial.

  6. Texas Water Development Board • MISSION: • To provide leadership, planning, financial assistance, information, and education for the conservation and responsible development of water for Texas • Provides loans and grants to local governments for water supply, water quality, wastewater, flood control and conservation projects • Collect data and conduct studies concerning the fresh-water needs of the State

  7. Texas Natural ResourcesInformation System • TNRIS is the State GIS Data Clearinghouse • Strategic Mapping Program • Produces, maintains, and enhances statewide digital geographic data themes in partnership with geographic information systems (GIS) professionals from public and private organizations. • Hydrography, elevation, boundaries, imagery and more…

  8. Texas Stewardship Program • MOU “Draft” – October 2009 Deadline • NSDI Liaison – Claire Devaughan • POC – Bill Smith • NHD Application in State • Modeling (Flood, Watershed, Water Quality) • Cartographic Product • Regulatory/Permitting (TCEQ)

  9. Did you know? • Approximately 95% of Texas is privately-owned • The Texas NHD is comprised of over 2,000,000 features and contains over 750,000 miles of streams/rivers

  10. Challenges • Management of Multi-resolution NHD • Maintenance required: Spatial Accuracy, Attribution, WBD delineations along coast • Funding • Pool of Associate Stewards, mostly State and Local entities • Requirement to have ArcGIS, training on the NHD Edit Tool to participate

  11. Solutions • Focus on maintenance of 1:24,000 product • Grassroots effort, using web solutions to power the NHD program • Establish NHD Advisory Board • Virtual Earth platform will allow for broad spectrum of Stewardship participants

  12. Daniel K. Pearson TNRIS, StratMap, Hydrology Lead dpearson@tnris.state.tx.us

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