The sum of $310,000,000 is authorized to be appropriated for carrying out the improvements herein and the sum of $10,000,000 is authorized to be appropriated and expended in equal amounts by the Departments of the Army and Agriculture for carrying out any examinations and surveys provided for in this Act and other Acts of Congress.
(June 22, 1936, ch. 688, § 9, 49 Stat. 1596; July 26, 1947, ch. 343, title II, § 205(a), 61 Stat. 501.)