![]() ![]() The shelter was dedicated on March 29, 1963. Once construction of the shelter began, contractors were given only 120 days to build it. The May 15, 1962, Seattle Times identified the structure as “the nation’s first fallout shelter to be built into a freeway.”ĭesigned by the Seattle engineering firm Anderson Bjornstad Kane and built by McDonald Construction of Seattle for $67,300, the shelter is located under southbound Interstate 5, at the north end of the Ravenna Bridge. ![]() It was expected to be the first of several fallout shelters across the U.S., but ended up being the only one built in the country. This door base over 30" tall will have a door 32" wide and 32" long with ladder-type steps going down into the shelter.In November 1962, only a month after the Cuban Missile Crisis, excavation of a shelter in Seattle began. Any door base that extends above the top of the shelter more than the standard 30" base, has to be hauled separately from the shelter. The top of the shelter will be approximately 30" below ground. This will put the door entrance just above the ground level. Our fallout shelters come with a standard door base 30" tall. A popular alternative is to install a long walkway and a 30" x 72" door. The door base is built in a way so that you can put two layers of boards and two layers of sand bags to prevent radiation from penetrating that hatch entrance "weak point." The rest of the shelter is already adequately protected from fallout radiation by the dirt/fill shielding on top of the shelter. The most inexpensive approach to installing a Safecastle fallout shelter is to opt for a shelter with a 32"-square blast-door hatch. As with all our shelters, your NBC / fallout shelter is made to your size specifications.įallout Shelter with Hatch Door or Entry Door They can also serve as a large Faraday Cage to protect from EMP, if appropriate steps are taken to keep the shelter tightly buttoned up. Our shelters provide blast protection, depending upon proximity to and power of a blast. ![]()
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