Construction of Badger Ordnance Works, as it was known in World War II, began in March 1942. Before the works were built, a 75,000 foot fence was erected around approximately 7,500 acres (30 km2) of the 10,500 acres (42 km2) acquired by the U.S. Army. When the plant was finished, it contained smokeless powder and rocket grain production facilities, housing for 12,000 construction workers and their families for six months, housing for 4,000-8,000 production workers and their families for the length of World War II, a school, a recreation center, a child care facility, a hospital, cafeterias, and a transportation system. By December 1942, of standard gauge railroad were completed.