Rocky Flats Plant – Building #779

AddressRocky Flats Environmental Technology Site, Hwy. 93, Golden 80402
QuadLouisville, 1965 (1979)
SectionS10 & 11, T2S, R70W
Elevationc. 6000
SourceHistoric Building Inventory Record #5JF1014.56, 1995, Colorado Historical Society.
Initialdate1998-12-28 00:00:00-07
HistoryThis 2-story, 67,710 sq. ft. building constructed in 1965 was used for research and development to support plutonium production and recovery processes. It is irregular-shaped, flat-roofed building on concrete footings. A one-story metal sided ell extends to the north. The doors are steel with safety glass and the windows, on the the south wall, are single panes in metal sash. There is a duct bridge connecting to Building #729 on the second floor on the south side and a second floor passage to Building #777 on the west side. In 1968, Building addition #779A was constructed and in 1973 addition #779B was constructed. In 1988, the building underwent a structural upgrade to add resistance to prevent damage from earthquake and high winds. Curtailment of plutonium processing was in 1989.