Elizabeth Locks and Dam News - The Waterways Journal

Demolition Half Complete At Elizabeth Locks & Dam

Locks and Dams

Demolition Half Complete At Elizabeth Locks & Dam

August 15, 2025

Explosive blasting to remove the old lock walls at Monongahela River Locks and Dam No. 3 near Elizabeth, Pa., is estimated to be 50 percent complete. Crews began removing lock… Read More

Corps Completes Elizabeth Dam Removal On Lower Mon Contractors for the Pittsburgh Engineer District use floating barges to drill, demolish and remove rubble from the former Monongahela River Locks and Dam 3 in Elizabeth, Pa., on August 2, 2024, creating a 100-foot channel. (Photo by Michel Sauret/Pittsburgh Engineer District)

Contractors for the Pittsburgh Engineer District use floating barges to drill, demolish and remove rubble from the former Monongahela River Locks and Dam 3 in Elizabeth, Pa., on August 2, 2024, creating a 100-foot channel. (Photo by Michel Sauret/Pittsburgh Engineer District)

Corps Completes Elizabeth Dam Removal On Lower Mon

January 31, 2025

While demolition of a former dam on the Monongahela River is complete, work to remove the locks is ongoing, and upstream low-water issues remain. A 300-foot navigation… Read More

Rock Piles Provide Fish Habitat In Lower Monongahela River

December 12, 2023

The Pittsburgh Engineer District is piling rocks in the Monongahela River to create fish reefs. Once the project is finished, the Pittsburgh District will have installed 73 reefs,… Read More