ALMA, Wis. — At worst, a pessimist might say, the lock is half empty at Lock and Dam 4 near here. Right now, it's optimistically referred to as empty, though a little bit of water still bubbles ...

1 / 2 Show Caption + Hide Caption – The lock chamber at Lock and Dam 4, near Alma, Wisconsin, is dewatered to perform maintenance and repairs. (Photo Credit: Melanie Peterson) VIEW ORIGINAL 2 / ...

Wednesday was a day of celebration on the Monongahela River, as a 20-year effort to build a modernized and larger lock chamber at Locks and Dam 4 has been completed. Renamed in honor of the late ...

The U.S. Army Corps of Engineers Pittsburgh District hosted a ribbon-cutting and renaming ceremony Wednesday for Locks and Dam 4 on the Monongahela River near Charleroi. Congress has renamed the ...

Lock and Dam 4 is located along the Mississippi River in Alma, Wisconsin at 420 North Main Street. The St. Paul District navigation program provides a safe, reliable, ...

A 2-foot-wide sinkhole was discovered in the ground next to dam 4 on the Potomac River near the C&O Canal towpath. Park officials are eying options.