Lock and Dam 3 is one of eight major river facilities on the Allegheny River. Visitors can view locking operations from the parking area or while touring the facility.
Lock and Dam 3 is located across from Acmetonia, Pa., just above the Pennsylvania Turnpike bridge.
PO Box 4208 Parnassus Station New Kensington, PA 15068-1308
USACE - US Army Corps of Engineers