Northwest Seaport Maritime Heritage Center is a nonprofit organization in Seattle, Washington dedicated to the preservation and interpretation of Puget Sound and Northwest Coast maritime heritage, expressed through educational programs and experiences available to the public aboard its ships. The organization owns three large historic vessels docked at the Historic Ships' Wharf in Seattle's Lake Union Park; the tugboat Arthur Foss (1889), Lightship 83 Swiftsure (1904), and the halibut fishing schooner Tordenskjold (1911). These vessels are used as platforms for a variety of public programs, ranging from tours and festivals to restoration workshops and vocational training.
Eureka is a side-wheel paddle steamboat, built in 1890, which is now preserved at the San Francisco Maritime National Historical Park in San Francisco, California. Originally named Ukiah to commemorate the railway's recent extension into the City of Ukiah, the boat was built by the San Francisco and North Pacific Railroad Company at their Tiburon yard. Eureka has been designated a National Historic Landmark and was listed in the National Register of Historic Places on April 24, 1973.
Light Vessel Number 83 (LV-83) Swiftsure is a lightship and museum ship owned by Northwest Seaport in Seattle, Washington. Launched in 1904 at Camden, New Jersey and in active service until 1960 after serving on all five of the American west coast's lightship stations, it is the oldest surviving lightship in the United States, the only one still fitted with its original steam engine, and the last lightship with wooden decks. LV-83 was designated a National Historic Landmark in 1989, and has been undergoing major restoration since 2008.
W. T. Preston is a specialized sternwheeler that operated as a snagboat, removing log jams and natural debris that prevented river navigation on several Puget Sound-area rivers. She is now the centerpiece of the Snagboat Heritage Center in Anacortes, Washington. She was designated a National Historic Landmark in 1989. Built in 1929, she is one of two surviving snagboats built and operated by the United States Army Corps of Engineers, and the only one on the American west coast.
SS Milwaukee Clipper, also known as SS Clipper, and formerly as SS Juniata, is a retired passenger ship and automobile ferry that sailed under two configurations and traveled on all of the Great Lakes except Lake Ontario. The vessel is now docked in Muskegon, Michigan.
Mayor Andrew Broaddus is a lifesaving station built by the United States Life-Saving Service located in Louisville, Kentucky, off the corner of River Road and Fourth Street. She is named in honor of Andrew Broaddus (1900–1972), a former mayor of Louisville (1953–1957). Her historic purpose was to protect travelers on the Ohio River from the Falls of the Ohio, with rescue crews for those who fell victim to the rapids. Louisville was the first place where a lifesaving station was placed in western waters. The first lifestation in Louisville was in 1881, with Mayor Andrew Broaddus as the third. A National Historic Landmark, she is the only surviving floating lifesaving station of the US Life-Saving Service.
Lettie G. Howard, formerly Mystic C and Caviare, is a woodenFredonia schooner built in 1893 in Essex, Massachusetts. This type of craft was commonly used by American offshore fishermen, and is believed to be the last surviving example of its type. She was declared a National Historic Landmark in 1989. She is now based at the South Street Seaport Museum in New York City.
The Thomas Wilson was a whaleback freighter built in 1892 and used to haul bulk freight on the Great Lakes. The ship sank in Lake Superior just outside the harbor of Duluth, Minnesota, United States, on 7 June 1902, after a collision with the George Hadley. The wreck of the Thomas Wilson is one of the best remaining examples of a whaleback steamer, and it is also significant for the changes made in operating procedures at the Duluth harbor. The remains of the ship were listed on the National Register of Historic Places in 1992.
United States lightship Nantucket (LV-112) is a National Historic Landmark lightship that served at the Lightship Nantucket position. She was the last serving lightship and at time of its application as a landmark, one of only two capable of moving under their own power. She served as the lightship for such notable vessels as the liners United States, Queen Mary, and Normandie.
George M. Verity is a historic towboat now displayed as a museum ship in Keokuk, Iowa. Built in 1927 as SS Thorpe, she is nationally significant for being one of only three surviving steam-powered towboats in existence in the United States. She was declared a National Historic Landmark in 1989.
Lone Star is a wooden hull, steam-powered stern-wheeled towboat in LeClaire, Iowa, United States. She is dry docked and on display at the Buffalo Bill Museum in LeClaire. Built in 1868, she is the oldest of three surviving steam-powered towboats, and the only one with a wooden hull. She was declared a National Historic Landmark on 20 December 1989.
Sergeant Floyd is a historic museum boat, serving as the Sergeant Floyd River Museum & Welcome Center at 1000 Larsen Park Road in Sioux City, Iowa. Built in 1932 as a utility vehicle and towboat, she is one of a small number of surviving vessels built specifically for the United States Army Corps of Engineers in its management of the nation's inland waterways. The boat has been restored and drydocked, and now houses exhibits about the Missouri River and local tourism information. The museum is a facility of the Sioux City Public Museum.
Montgomery is a steam-powered sternwheel-propelled snagboat built in 1925 by the Charleston Dry Dock and Machine Company of Charleston, South Carolina, and operated by the United States Army Corps of Engineers. Montgomery cleared snags and obstructions from the Coosa, Alabama, Apalachicola, Chattahoochee, Flint, Black Warrior, and Tombigbee Rivers until her retirement from the Corps of Engineers on November 8, 1982. She was restored in 1984 and again in 2004. One of only two surviving Army Corps of Engineers snagboats, she was declared a National Historic Landmark in 1989. Montgomery now operates as a museum ship at the Tom Bevill Lock and Dam Visitor Center in Pickensville, Alabama.
United States lightship Relief (WLV-605) is a lightvessel now serving as a museum ship in Oakland, California. Built in 1950, she is one of a small number of surviving lightships, and one of an even smaller number built specifically for the United States Coast Guard. Along with her sister ship, the WLV-604 Columbia, she is a good example of the last generation of lightships built. She was declared a National Historic Landmark in 1989.
SS Ste. Claire is a steamer located in Detroit, Michigan. Built in 1910, she was one of the last propeller-driven excursion steamers to be operated on the Great Lakes. She was declared a US National Historic Landmark in 1992. In 2018, a devastating fire destroyed the upper decks, leaving only the steel structure. The ship was delisted as a National Historic Landmark and from the National Register of Historic Places in 2023.
Baltimore is a preserved steam-powered tugboat, built in 1906 by the Skinner Shipbuilding Company of Baltimore, Maryland. She is formerly the oldest operating steam tugboat in the United States, but at present does not hold an operating license issued by the US Coast Guard, so is unable to leave her dock at the Baltimore Museum of Industry on Key Highway, Baltimore. Her hull is not capable of operating on open water. Baltimore was built and operated as a harbor inspection tug, capable of acting as a municipal tugboat for city barges, as well as an official welcoming vessel and VIP launch, an auxiliary fireboat, and as a light icebreaker.
Sainte Genevieve, also known as The Genny, was a steam-powered Cutterhead dredge. At the time she was listed on the National Register of Historic Places in 1986, she was located on the Mississippi River along the levee near downtown Davenport, Iowa, United States.
The Cumberland was a wooden-hulled side paddlewheeler built in 1871; it was wrecked off the shore of Isle Royale in Lake Superior in 1877 and the remains are still on the lake bottom. The wreck was placed on the National Register of Historic Places in 1984.
Arctic was a wooden-hulled tugboat that worked on the Great Lakes of North America from 1881 to 1930. In 1930 the Arctic was stripped of her machinery, and abandoned at Manitowoc, Wisconsin. On June 22, 2018, the remains of the Arctic were listed on the National Register of Historic Places.
United States 
