Upper Trinity
Regional Water District

900 North Kealy Street
P.O. Box 305
Lewisville, Texas 75067
(972) 219-1228

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Upper Trinity's Field Office is now open!

We're located at 10910 State Highway 34, Ladonia, TX 75449.

If you have questions, please call us at 903-367-7008.



With Vision and courage, we plan.

With cooperation and committment, we serve.

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Lake Ralph Hall

Lake Ralph Hall will be one of Texas’ newest lakes and one of the state’s biggest water projects in the last 30 years. Named after the longtime US Congressman Ralph Hall from Rockwall, the reservoir will be located on the North Sulphur River in Southeast Fannin County and will provide essential water for an area whose population is projected to increase nearly 500% in the next 50 years. Once complete, Lake Ralph Hall will provide an additional 35 million gallons daily (MGD) of treated water and 19 MGD of reuse water for the residents of Denton, Collin and Fannin counties.

Upper Trinity Regional Water District holds a water rights permit issued by the Texas Commission on Environmental Quality; and, has a Section 404 (Clean Water Act) permit pending with the U.S. Army Corps. of Engineers, which is expected to be issued in early 2020. Construction is scheduled to begin in mid 2020 with water delivery by 2025. Contracting opportunities can be reviewed by clicking on the map below.


Click map for more information.