The Montgomery Bell Tunnel, also known as the 'Patterson Forge Tunnel, in Cheatham County, Tennessee, is a 290-foot (88 m) long tunnel through limestone rock which was the first "full-scale" water diversion tunnel built in the United States. It is also apparently the first "full-scale" tunnel of any type in the United States, according to histories of tunneling. It was built in 1819 by Montgomery Bell using the labor of slaves.
क्या आप के पास ऐसा प्रपत्र है जिसे आप एक अनुप्रयोग के रूप मैं बदलना चाहतें है?
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