Rocky Flats Plant - Building #779

Address: Rocky Flats Environmental Technology Site, Hwy. 93, Golden 80402

This 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.
Quad Map/Date: Louisville, 1965 (1979)
Sec/Town/Range: S10 & 11, T2S, R70W
Elevation: c. 6000
Source: Historic Building Inventory Record #5JF1014.56, 1995, Colorado Historical Society.

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