Tex. Water Code § 63.157: AUTHORITY OVER IMPROVEMENTS.

A district may acquire, purchase, take over, construct, maintain, operate, develop, and regulate wharves, docks, warehouses, grain elevators, bunkering facilities, belt railroads, floating plants, literage, lands, towing facilities, and all other facilities or aids incident to or necessary to the operation or development of ports or waterways inside the district extending to the Gulf of Mexico.

Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. Aug. 30, 1971.