Why This Record Is CONFIRMED
FACILITY RECORDS
CONFIRMEDApril 2026 · Record UF-USA-0001 · Last Reviewed: April 2026
SOURCE NOTES
Washington Post, May 31 1992; National Archives Record Groups 319 and 77; FEMA Continuity of Government records; The Greenbrier Resort public bunker tour program; Atomic Heritage Foundation; U.S. Army Corps of Engineers historical records; Smithsonian Magazine, April 2024.
The Greenbrier Bunker, formally designated Project Greek Island, is the anchor record in the D.U.M.B. Database and the first facility to receive a CONFIRMED confidence grade. This classification is based on official United States government acknowledgment, declassified federal records held at the National Archives, and the facility's current operation as a publicly accessible Cold War museum at The Greenbrier Resort in White Sulphur Springs, West Virginia. No element of this record relies on speculation or unverified sourcing.
In 1955, President Dwight D. Eisenhower directed the Department of Defense to develop emergency relocation plans for the United States Congress in the event of a nuclear attack on Washington, D.C. This directive formed part of the broader Continuity of Government program administered through federal civil defense channels. The U.S. Army Corps of Engineers was tasked with identifying and constructing a suitable relocation facility. The Greenbrier resort was selected based on its location approximately 250 miles from the capital in the Allegheny Mountains of West Virginia, its existing relationship with the federal government — the property had served as a military hospital during World War II — and its capacity to provide plausible cover for large-scale construction activity.
Construction of the underground facility began in 1958 and is documented as substantially complete by 1961, with final systems integration extending into 1962. The U.S. Army Corps of Engineers supervised the project, which was concealed within the simultaneous construction of the resort's above-ground West Virginia Wing. The completed facility encompassed 112,544 square feet across two levels, extending approximately 720 feet horizontally into the hillside beneath 20 to 60 feet of earth and reinforced concrete. Four blast doors, manufactured by the Mosler Safe Company of Ohio and weighing up to 28 tons each, secured the entrances. Total construction cost has been documented at $14 million in 1960s-era dollars.
Project Greek Island was designed to house the entire United States Congress — all 535 members plus essential support staff — for a total capacity of approximately 1,100 persons for up to 60 days. The facility contained 18 dormitories with over 1,000 bunk beds, a 400-seat cafeteria, a hospital with medical and dental operating rooms, decontamination chambers, a self-contained power plant with diesel generators, three 25,000-gallon water storage tanks, and a two-level communications center with television broadcast capability. For approximately 30 years, the facility was maintained in readiness by Forsythe Associates, a front company staffed by government employees operating undercover as television repair technicians at the resort.
On May 31, 1992, journalist Ted Gup published "The Ultimate Congressional Hideaway" in the Washington Post Magazine, revealing the existence and location of the classified bunker. Congressional leaders issued a public statement acknowledging that the effectiveness and security of the program had been compromised. Decommissioning began the following day.
The federal government conducted a phased decommissioning between 1992 and 1995, during which equipment was removed and reassigned to other installations. In July 1995, the government formally relinquished control of the facility to The Greenbrier Resort and the special access program was declassified. The Greenbrier subsequently restored portions of the facility and began offering guided tours, open to the general public since 2006. Approximately 50,000 visitors per year now tour the facility.
The Greenbrier Bunker satisfies every criterion for the CONFIRMED confidence grade. Official government acknowledgment has been documented: Congressional leaders publicly confirmed the facility following the 1992 disclosure, and the federal government formally declassified the program in 1995. Federal records are held at the National Archives within Record Group 319 and Record Group 77. The facility now operates as a public museum where original infrastructure — blast doors, power plant, decontamination chambers, and communications equipment — can be directly observed. No other facility record in the database is supported by this convergence of declassified government records, official acknowledgment, and direct public access.
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