The Dravo Corporation of Pittsburgh built the Dredge Thompson for the St. Paul District in 1936 for nearly $900,000, or $1.3 million with contract modifications. It was christened in Pittsburgh in March 1937 by William Thompson's granddaughter, Louise, and first sent to New York, where its galley, mess and quarters were fitted. It was then returned to Pittsburgh, where crews completed its construction.
Scrapped in 2012, in Prairie du Chien