ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, is hosting an open house at Lock and Dam 1, located near Minnehaha Park in Minneapolis, Saturday, July 18, from 11 a.m. to 3 p.m. The lock and dam, often referred to as the Ford Dam, is located at 5000 West River Parkway, Minneapolis. It is also adjacent to Minnehaha Park.