File:Frenchman Flat Underground Garage 004.jpg

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Description PLUMBBOB - 1957 - NEVADA TEST SITE -- Interior view of the dual-purpose garage and mass shelter, sponsored by the Federal Civil Defense Administration, showing two of the three rows of support columns. Radiation dosimetry and other instrumentation will be installed in the huge room which is approximately 90 feet square. The shelter was designed as a segment of a dual purpose structure, and could be expanded to any desired size. It is under three feet of earth, with a reinforced concrete roof slab two feet, six inches thick. The structure could be used as an underground garage in peacetime and converted to use as a shelter in time of emergency.
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This image is available from the National Nuclear Security Administration Nevada Site Office Photo Library under number PLU-57-176.

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Author National Nuclear Security Administration / Nevada Site Office
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Public domain This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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current00:52, 3 September 2012Thumbnail for version as of 00:52, 3 September 20121,441 × 1,161 (290 KB)Bomazi (talk | contribs){{Information |Description=PLUMBBOB - 1957 - NEVADA TEST SITE -- The underground chamber of a dual purpose structure, designed by Amman & Whitney Consulting Engineers as a part of FCDA's participation in the Civil Effects Test Group ...

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