Along with the Potlatch, 1912 saw the construction and launch of a second large steamer, the S.S. Sol Duc. The Puget Sound Navigation Co. was well on its way to replacing its fleet of old wooden steamers with one of steel.
Both the Sol Duc and Potlatch were completed by the Seattle Construction & Drydock Co., and went into service in the summer of 1912. The Sol Duc was designed for the Seattle Port Townsend-Port Angeles-Port Crescent run, but Port Crescent never took off as a town and the steamer became the "Night Boat" running from Seattle to Victoria, British Columbia. Though a noted roller in heavy seas, the Sol Duc stayed on the Victoria run nearly her entire career.
With the Iroquois taking over the "Night Boat" run, the Sol Duc, which was unable carry very many autos, took over for the Kulshan on the Seattle-Everett-Anacortes-Bellingham route. She stayed on that run until the route was discontinued in 1935. She was later mothballed along with all the other now obsolete Black Ball passenger steamers, but avoided scrapping.
World War II saw the Sol Duc and the steam ferry Quilcene (ex-Kitsap II and City of Bellingham) taken over from the Puget Sound Navigation Co. by the U. S. Navy in 1942. Both the Sol Duc (YHB-8) and Quilcene (YHB-5) were used a barracks ship. At the end of the war with the need for passenger steamers long past, the Sol Duc was sold for scrap.
S.S. SOL DUC 1912 Built: 1912, Seattle Construction & Drydock Length: 189 feet Beam: 31.5 feet Draft:22.6 feet 1,085 tons One triple expansion engine, 1,500 Horsepower. FINAL DISPOSITION: Scrapped 1948 Sol Duc translates to "magical waters."