Email Record: Missouri River. Letter from the Secretary of War transmitting pursuant to section 1 of the River and Harbor Act approved January 21, 1927, and section 10 of the Flood Control Act approved May 15, 1928, a letter from the Chief of Engineers, United States Army, dated September 30, 1933, submitting a report, together with accompanying papers and illustrations, containing a general plan for the improvement of Missouri River, for the purposes of navigation and efficient development of its water power, the control of floods, and the needs of irrigation.