File:NNSA-NSO-546.jpg

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Description PLUMBBOB - 1957 - NEVADA TEST SITE -- Dome-type structures, larger than the one shown in the foreground above, have been proposed as an effective and economical means of providing mass shelter. Under Federal Civil Defense Administration auspices, three dome shelters, 50 feet in diameter, will undergo nuclear blast at approximate overpressure ranges of from 20 to 70 pounds per square inch (psi). The reinforced concrete domes, of six-inch constant shell thickness, will be exposed to blast without the aid of earth cover. FCDA engineers decided the 50 feet diameter structure (above) was adequate for preliminary tests, eliminating the expense of a 150 ft. structure. A temporary steel door will close off the structure. A full-size, prototype steel shelter door, designed to close off a dome shelter off a dome shelter of about 150 ft. In diameter, will be tested independently. The trenches on the right have no relationship to the shelter, being cable trenches.
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This image is available from the National Nuclear Security Administration Nevada Site Office Photo Library under number PLU-57-166.

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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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current00:47, 3 September 2012Thumbnail for version as of 00:47, 3 September 20121,438 × 1,152 (429 KB)Bomazi (talk | contribs){{Information |Description=PLUMBBOB - 1957 - NEVADA TEST SITE -- Dome-type structures, larger than the one shown in the foreground above, have been proposed as an effective and economical means of providing mass shelter. Under Federal Civil Defense ...

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