Concrete ships are built primarily with ferrocement hulls, reinforced with steel bars. This contrasts against more traditional materials, such as pure steel or wood. The advantage of ferrocement construction is that materials are cheap and readily available, while the disadvantages are that construction labor costs are high, as are operating costs. During the late 19th century, there were concrete river barges in Europe, and during both World War I and World War II, steel shortages led the US military to order the construction of small fleets of ocean-going concrete ships, the largest of which was the SS Selma. United States Maritime Administration (MARAD) designation for concrete ships-barges was Type B ship. Few concrete ships were completed in time to see wartime service during World War I, but during 1944 and 1945, concrete ships and barges were used to support U.S. and British invasions in Europe and the Pacific. Since the late 1930s, there have also been ferrocement pleasure boats.
SS Palo Alto was a concrete ship built as a tanker at the end of World War I. Completed too late to see war service, she was mothballed until 1929, when she was intentionally grounded off Seacliff State Beach in the Monterey Bay, becoming part of a pleasure pier entertainment complex. Palo Alto was damaged by the sea, leading her to be stripped and used only as a fishing pier. Subsequent decades have seen her be further broken by the sea, but large sections of her wreck remain somewhat intact.
Hammac was a steam tank ship built in 1920–1921 by Bethlehem Shipbuilding Corporation of Alameda for the United States Shipping Board as part of the wartime shipbuilding program of the Emergency Fleet Corporation (EFC) to restore the nation's Merchant Marine. Early in 1923 the vessel together with two other tankers was sold to General Petroleum Corporation and renamed Emidio. The tanker spent the vast majority of her career carrying oil along the West Coast of the United States as well as between West and East coast. In December 1941 she was shelled and damaged by the Japanese submarine I-17 and eventually wrecked with a loss of five crewmen.
Type C1 was a designation for cargo ships built for the United States Maritime Commission before and during World War II. Total production was 493 ships built from 1940 to 1945. The first C1 types were the smallest of the three original Maritime Commission designs, meant for shorter routes where high speed and capacity were less important. Only a handful were delivered prior to Pearl Harbor. But many C1-A and C1-B ships were already in the works and were delivered during 1942. Many were converted to military purposes including troop transports during the war.
SS Mission San Diego was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission San Diego (AO-121). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission San Diego (T-AO-121). She was a member of the Mission Buenaventura-class oiler and was named for the Mission San Diego de Alcalá.
The SS City of Rio de Janeiro was an iron-hulled steam-powered passenger ship, launched in 1878, which sailed between San Francisco and various Asian Pacific ports. On 22 February 1901, the vessel sank after striking a submerged reef at the entry to San Francisco Bay while inward bound from Hong Kong. Of the approximately 220 passengers and crew on board, fewer than 85 people survived the sinking, while 135 others were killed in the catastrophe. The wreck lies in 287 feet (87 m) of water just off the Golden Gate and is listed in the National Register of Historic Places as nationally significant.
A gambling ship is the term for a ship stationed offshore in or transiting to international waters to evade local anti-gambling laws that is dedicated to games of chance. This applies both to ships which are permanently moored somewhere outside the limits, or, when legal, that can transit back and forth from a nearby port where it is not. Other ships also offer gambling as part of their onboard entertainment, but are not "gambling ships" per se.
MV Lyubov Orlova was a 1976 Yugoslavia-built ice-strengthened Maria Yermolova-class cruise ship, which was primarily used for Antarctic cruises. After being taken out of service in 2010, she sat in St. John's, Newfoundland, Canada for two years. Decommissioning was fraught with problems and the ship eventually became a floating derelict in the North Atlantic Ocean in 2013. She is believed to have sunk.
King Philip was a 19th-century clipper ship launched in 1856 and wrecked in 1878. The wreck of this ship is only rarely visible; very infrequently the timbers can be seen protruding from the sands of Ocean Beach, on the Pacific Ocean coast of San Francisco, California. The wreck is the "most complete remains of an American medium clipper." This is a shipwreck of one of many ships that were wrecked in and around San Francisco Bay.
Many ships have wrecked in and around San Francisco Bay. For centuries San Francisco Bay, with its strong currents, rocky reefs, and low fog conditions has experienced more than a hundred shipwrecks. Ever since San Francisco Bay was discovered during the land expedition of Gaspar de Portolà in 1769, it has been one of the most popular harbors.
USS Clifton (IX-184) was a storage tanker that served in the United States Navy from 1945 to 1946 as an unclassified miscellaneous vessel.
The SS Arrow was an oil tanker built by Bethlehem Steel Company, Sparrows Point, Baltimore, Maryland in 1948 as the tanker Olympic Games. Renamed Sea Robin in 1960 and finally Arrow in 1962, the ship was a Liberian-registered tanker owned by the Sun Navigation Company. At 551.2 feet in length and 68.3 feet in width, with a draft of 29.9 feet, she was an enlarged version of the standard American World War II tanker design and one of the oldest tankers in the fleet of Aristotle Onassis. The Arrow ran aground and spilled its load of oil into Chedabucto Bay on February 4, 1970. This remains the most significant oil spill off Canada’s East Coast, with some 10,000 tonnes. Only the MV Kurdistan accident has come close, spilling about 6,000 tons of oil after breaking apart in the Cabot Strait on March 15, 1979.
The SS Luray Victory was the seventeenth Victory ship, a new 10,500 ton class ship built during World War II. The California Shipbuilding Company built the ship under the Emergency Shipbuilding program. She was launched on May 11, 1944, and completed on June 26, 1944. The ship’s United States Maritime Commission designation was VC2-S-AP3, hull number 17 (V-17). The SS Luray Victory served in the Pacific Ocean during World War II and was operated by the Black Diamond Steamship Company.
The Type B ship is a United States Maritime Administration (MARAD) designation for World War II barges. Barges are very low cost to build, operate and move. Barges were needed to move large bulky cargo. A tug boat, some classed as Type V ships, could move a barge, then depart and move on to the next task. That meant the barge did not have to be rushed to be unloaded or loaded. Toward the end of World War 2, some ships that had not been completed in time for the war were converted to barges. US Navy barges are given the prefix: YWN or YW. Due to shortage of steel during World War II, concrete ship constructors were given contracts to build concrete barges, with ferrocement and given the prefix YO, YOG, YOGN. Built in 1944 and 1945, some were named after elements.
The San Clemente-class oil tanker is a class of oil tankers built by National Steel and Shipbuilding Company (NASSCO), San Diego. The size places them in the category of super tankers. They were built to serve the Trans-Alaska Pipeline System. At the time of completion National Steel and Shipbuilding Company was equally owned by Kaiser Industries Corporation and Morrison-Knudsen Company, Inc.
Lyman Stewart was a steam tanker built in 1914 by Union Iron Works Company of San Francisco for the Union Oil Company of California, with intention of transporting oil and petroleum products to ports along the West Coast of the United States and Canada. The ship was named after Lyman Stewart, the president of the Union Oil Co. In October 1922 the tanker collided with another steamer, SS Walter Luckenbach, and was beached to avoid sinking but was subsequently declared a total loss.
Swiftstar was a steam tanker built in 1920-1921 by Northwest Bridge & Iron Company of Portland for the Swiftsure Oil Transport Co., a subsidiary of the France & Canada Steamship Co., with intention of transporting oil from foreign ports to refineries along the Gulf and East Coasts of the United States. The ship had short but troubled history. In July 1923 after departing Colón the tanker went missing. Large oil slick, burnt remnants and several lifeboats bearing the ships's name were later found indicating the ship exploded. All 32 people on board were presumed lost.
The J. A. Chanslor was an oil tanker built in 1910 which was wrecked off of Cape Blanco, Oregon, on 18 December 1919, with only three survivors of the 38 crew.
