dredge personnel
The U.S. Army once had a fleet of ships that rivaled that of the U.S. Navy. With the merge of the U.S. Army-managed Army Transport Service and its successor organizations with that of the U.S. Navy, Navy Transport Service into the U.S. Military Sea Transportation Service in the late-1940s, one of the few U.S. Army waterborne activities remaining was that of the Floating Plant and Dredge & Lock personnel attached to the U.S. Army Corps of Engineers.
Below is a recruitment booklet circa 1960s.