The U.S. Army Corps of Engineers, St. Paul District, awarded a $1.9 million contract to place riprap in the Mississippi River downstream of Lock and Dam 1 in Minneapolis, on September 21.
The contractor, LS Marine, Inc., from St. Paul, Minnesota, will place nearly 20,000 tons of riprap and bedding downstream of the lock.
Work is expected to begin this fall and be completed in the fall of 2016.
The project will protect the lock and dam structure from additional scouring by placing the riprap protection from immediately downstream of the spillway to approximately 150 feet downstream.
Material and equipment will be brought to the site by barge and offloaded on the island directly south of the lock.