US Army Corps of Engineers
Pittsburgh District Website

Locks and Dams

From the days of wooden wicket dams to today's modern technology, improving and maintaining the navigability of our nation's waterways has been a priority for the U.S. Army Corps of Engineers. The Pittsburgh District operates 23 locks & dams on the Allegheny, Monongahela & Ohio Rivers.


 Allegheny River Monongahela River Ohio River
Lock & Dam 2, Allegheny River Braddock Locks & Dam Emsworth Locks & Dams
C.W. Bill Young Lock & Dam Locks & Dam 3, Mon River Dashields Locks & Dam
Lock & Dam 4, Allegheny River Locks & Dam 4, Mon River Montgomery Locks & Dam
Lock & Dam 5, Allegheny River Maxwell Locks & Dam New Cumberland Locks & Dam
Lock & Dam 6, Allegheny River Grays Landing Lock & Dam Pike Island Locks & Dam
Lock & Dam 7, Allegheny River Point Marion Lock & Dam Hannibal Locks & Dam
Lock & Dam 8, Allegheny River Morgantown Lock & Dam  
Lock & Dam 9, Allegheny River Hildebrand Lock & Dam  
  Opekiska Lock & Dam