The U.S. Army Corps of Engineers, St. Paul District, announced today that Lock and Dam 1, in Minneapolis, is now open to all commercial traffic, and Lock and Dam 3, in Welch, Minnesota, is open to navigation traffic. Be advised that Lock and Dam 1 flows are at 30,000 cubic feet per second with floating debris creating potentially hazardous conditions for recreational traffic; therefore, the lock is closed to recreational traffic until water flows decrease and the excessive amount of floating debris is reduced.