US Army Corps of Engineers
Pittsburgh District

Massive Cross Culverts Installed at Charleroi Lock and Dam
Pittsburgh District successfully installed the two massive precast concrete cross culverts in the new middle wall at Monongahela River Lock and Dam 4 at Charleroi. The precast culverts are stay-in elements within the new middle wall that will allow the future landside-lock chamber to empty water from the chamber into the river.