This "before" photo shows the deteriorating hydraulics system replaced by the U.S. Army Corps of Engineers Pittsburgh District mechanics at the C.W. Bill Young Lock & Dam on the Allegheny River. The project took a better part of a year and more than 800 work hours to complete, performed mostly by Robert Nuss and Gary Dernus, lock mechanics. The lock and dam first went into operation in late 1934. Some of the piping and fittings dated back to the lock’s original construction. The mechanics team replaced hundreds of feet of rusted and deteriorating piping with new or refurbished material expected to last several decades. (U.S. Army Corps of Engineers Pittsburgh District photo)