Rocky Flats Plant – Building #883

AddressRocky Flats Environmental Technology Site, Hwy. 93, Golden 80402
QuadLouisville, 1965 (1979)
SectionS10 & 11; T2S, R70W
Elevationc. 6000
SourceHistoric Building Inventory Record #5JF1014.40, 1995, Colorado Historical Society
Initialdate1998-12-28 00:00:00-07
HistoryBuilt in 1956, this flat-roofed, two-story plus partial basement, 52,350 sq. ft. building was used for rolling and forming uranium parts for weapons operations. It is a rectangular structure with reinforced concrete walls on a concrete foundation. A one-story ell runs the length of the building on the east side. The building is divided into three production areas: Side A - rolling and forming; Side B - rolling and forming; Side C - armor plate production. In February 1957, operations began. The same year the structure were part of the IV plant expansion - fabrication of enriched and depleted uranium parts used in weapons design. The sealed hollow shape of the component in the new weapons design required significant amounts of rolling and forming with space in Buildings #881 and #444 limited. Additional storage and manufacturing space was added to Building #883. In 1964, the enriched uranium operations moved to Oak Ridge. Another addition in 1968 provided plenum, storage and fabrication space. In 1972, a valve room was added. From 1983 to 1985 an addition was constructed for support manufacturing of armor plates for MIA tanks. In 1989, all operations ceased.