Texas Water Code Sec. § 61.111 Purposes of District A district may: (1) improve rivers, bays, creeks, streams, and canals inside or adjacent to the district; (2) construct and maintain canals and waterways to permit or aid navigation; and (3) issue bonds to pay for these improvements. Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. Aug. 30, 1971.