initiative to build ferrocement ships on his own. He formed the San Francisco Ship Building Company (in Oakland, California), and hired Alan Macdonald and Victor Poss to design the first American ferrocement ship, a 6,125-ton steamer named the . Faith was launched March 18, 1918. She cost $750,000 to build. She was used to carry bulk cargo for trade until 1921, when she was sold and scrapped as a breakwater in Cuba. On April 12, 1918, President Woodrow Wilson approved the Emergency Fleet Corporation program which oversaw the construction of 24 ferrocement ships for the war. However, when the war ended in November 1918, only 12 ferrocement ships were under construction and none of them had been completed. These 12 ships were eventually completed, but soon sold to private companies who used them for light-trading, storage, and scrap. Other countries that looked into ferrocement ship construction during this period included Canada, Denmark, Italy, Spain, Sweden and the United Kingdom. Between the world wars, there was little commercial or military interest in concrete ship construction. The reason was that other shipbuilding methods were cheaper and less labor-intensive, and other kinds of ships were cheaper to operate. However, in 1942, after the U.S. entered World War II, the U.S. military found that its contractors had steel shortages. Consequently, the U.S. government contracted McCloskey & Company of Philadelphia, Pennsylvania to build 24 self-propelled concrete ships. Construction started in July 1943. The shipyard was at Hookers Point in Tampa, Florida, and at its peak, it employed 6,000 workers. The U.S. government also contracted with two companies in California for the construction of concrete barge ships. Barge ships were large vessels that lacked engines to propel them. Instead, they were towed by tugs. In Europe, ferrocement barges (FCBs) played a crucial role in World War II operations, particularly in the D-Day Normandy landings, where they were used as part of the Mulberry harbour defenses, for fuel and munitions transportation, as blockships, and as floating pontoons. In 1940, 200 were commissioned to serve as petrol-carrying barges. The barges weighed 160 tons and were constructed on the London dockside before being craned into the water by a giant crane. Some barges were fitted with engines and used as mobile canteens and troop carriers. Some of these vessels survive as abandoned wrecks or sea defenses (against storm surges) in the Thames Estuary including near Rainham Marshes.) Two remain