Quote:
Originally Posted by lumberjim
if we built a wall that was 50 ft thick, and 400 feet high, that went down 75 ft below the surface, and we cleared the land 2000 feet on both sides of it, except for the outposts on the US side and a big freaking gate every 100 miles or so.....
think big.....make a point out of it.
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1952 miles long = 10,306,560 feet
10,306,560 * 475 * 50 = 244,780, 800, 000 cubic feet of concrete.
= 81,593,600,000 yd^3 at 4050 LB/yd^3 = 330,454,080,000,000 pounds, or 165,227,040,000 tons of concrete. Plus rebar.
Got 165.2 billion tons of concrete kicking around?
02-22-2009, 08:13 PM
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