Des Moines River, Iowa, Letter from the Secretary of the Army Transmitting a Letter from the Chief of Engineers, Department of the Army, Dated April 6, 1956, Submitting a Report, Together with Accompanying Papers and an Illustration, on an Interim Report on the Des Moines River, Iowa, Requested by a Resolution of the Committee on Commerce (Public Works), United States Senate, Adopted on July 10, 1945, Presented by Mr. Chavez, January 9 (legislative Day, January 3), 1957.--Referred to the Committee on Public Works and Orderd to be Printed with Illustrations