Sec. 13. (a) The commission may construct flood control works or a part of flood control works. The commission may perform the duties in cooperation with any of the following:
(1) A person.
(2) A state agency.
(3) Other states or an agency of another state.
(4) The United States or any agency of the United States.
(b) The commission shall obtain flood control works as follows:
(1) From and through or by cooperation with the United States Army Corps of Engineers or an agency of the United States.
(2) By cooperation with and action of cities and towns under Indiana law relating to flood control.
(3) By cooperation with and action of landowners in rural areas affected by flood control works under Indiana law relating to levees.