Southern California California History Vintage California. If you purchase these poles, instead of chopping them down yourself, you're looking at an average cost of about $20 per log, or $400 for 20 logs. Fallout Shelter Sign- Long Beach, CA Flickr - Photo Sharing Long Beach. The poles should over-hang the edges by at least a foot in order to help support the soil on top. Step 4: Once you've dug your trench, lay your wooden poles over top of it. A basic 3-by-11 foot waterproof tarp should run you between $20-$40. John Rabe goes where only a few men have gone before a fallout shelter in the deep Valley. Step 3: When completed, place waterproof material over each end of the shelter to form an overhead canopy - this should keep your shelter dry as well as catch any dropping fallout. It should be about two feet wide by three and a half feet deep - it's basically a crawl space and can double as an emergency exit for smaller individuals. The City of Riverside's Emergency Management Office is actively coordinating the City's response to disasters as well as assisting residents to prepare for major events such as earthquakes, floods, hazardous material spills, plane crashes, train derailments, Africanized honey bees, and civil unrest. Dig this trench just under the ground's surface with an opening to the surface at the end of it. At the other end of the trench, dig a five-foot-long ventilation trench to help circulate air. Step 2: Next, dig a five-foot-long entrance with steps or a slope down into the main area.
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