Corps of Engineers ... Maintenance and improvement operations included replacing air circuit breakers in switchboard, dredging upper lock approach between guide walls, and ... Benefits attributable to Barkley effect in reduction of floodflows on lower Ohio and Mississippi Rivers during year are estimated as $525, 600.
|Title||:||Annual Report of the Chief of Engineers, U.S. Army, on Civil Works Activities|
|Author||:||United States. Army. Corps of Engineers|