Kavatsi-Nanadaru - bridge-loop in Japan
The bridge is also known as the Japanese double loop. It is located in Kavatsite. This double helix allows cars up and down to 45 m, and, as if they are suspended between the two sides of the mountain. In the loop diameter is 80 m, and the whole sloping portion is 1.1 miles in length. The bridge on Highway 414 between Tokyo and the peninsula Itza was completed in 1982 and has become a local landmark.