A district may be created for the following purposes:
(1) to construct and maintain levees and other improvements on, along, and contiguous to rivers, creeks, and streams;
(2) to reclaim lands from overflow from these streams;
(3) to control and distribute the waters of rivers and streams by straightening and otherwise improving them; and
(4) to provide for the proper drainage and other improvement of the reclaimed land.
Official text of the Texas Water Code as published by the Texas Legislative Council.