This section is from the book "Bepler's Handy Manual of Knowledge And Useful Infomation", by David Bepler. Also available from Amazon: Bepler's Handy Manual of Knowledge and Useful Information.
The Mount Cenis Tunnel, Italy, is next, is 39,840 feet long or about 7 miles long.
The Hoosac Tunnel, Mass., is 25,080 feet long or about 4 1/2 miles long, the longest in the United States.
The Nochistongo Tunnel is 21,659 feet long, or about 4 miles long.
The Sutro Tunnel is 21,120 feet long or about 4 miles long.
The Thames and Medway Tunnel, England, is 11,880 feet long, or about 2 miles long.