Tex. Water Code § 49.220
All districts or water supply corporations are given rights-of-way within, along, under, and across all public, state, county, city, town, or village roads, highways, and rights-of-way and other public rights-of-way without the requirement for surety bond or security; provided, however, that the entity having jurisdiction over such roads, highways, and rights-of-way may require indemnification. A district or water supply corporation shall not proceed with any action to change, alter, or damage a portion of the state highway system without having first obtained the written consent of the Texas Department of Transportation, and the placement of any facility of a district or water supply corporation within state highway right-of-way shall be subject to department regulation.
Tex. Water Code § 49.220