Dai-Shimizu-Tunnel

36.829556138.916712Koordinaten: 36 ° 49 '46 "N, 138 ° 55' 0" E

The Dai- Shimizu Tunnel (Japanese大清水 トンネル, Dai- Shimizu- tonneru ) is a Japanese railway tunnel that was built for the Shinkansen high-speed traffic. With a length of 22,221 m, the tube was on its completion, in 1979, the longest railway tunnel in the world. The tunnel is part of the Joetsu Shinkansen between Tokyo and Niigata, and passes under the Japanese Alps.

With the opening of the 53.9 km long Seikan tunnel in May 1988, the tubes were the world's second longest tunnel. In the list of the longest tunnel in the world, he now ranks (as of March 2009) on the seventh rank.

The name Dai- Shimizu tunnel - literally " big Shimizu Tunnel " - is related to the closely adjacent opened in 1931, 9,702 m long Shimizu Tunnel (清水 トンネル, Shimizu- tonneru ) and the 1967 opened, 13,490 m long Shin- Shimizu tunnel (新清水 トンネル, Shin- Shimizu- tonneru, dt "New Shimizu tunnel ").