33 U.S.C. § 540: Investigations and improvements; control by Department of the Army; wildlife conservation

Federal investigations and improvements of rivers, harbors, and other waterways shall be under the jurisdiction of and shall be prosecuted by the Department of the Army under the direction of the Secretary of the Army and the supervision of the Chief of Engineers, except as otherwise specifically provided by Act of Congress, which said investigations and improvements shall include a due regard for wildlife conservation.