US Army Corps of Engineers
Pittsburgh District

Massive Cross Culverts Installed at Charleroi Lock and Dam
The $70.5 million work on monoliths M22 to M27 is part of the $2.7-billion Lower Monongahela Locks and Dams 2, 3, 4, or Lower Mon Project. The work underway at Charleroi involves building new middle and river walls that comprise a new riverside lock chamber.