Daishimizu Tunnel
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Dai-Shimizu tunnel
In 1978, the Dai-Shimizu tunnel was completed. This tunnel was dug for the Jōetsu Shinkansen that was to be completed in 1982. This tunnel was the world's longest tunnel at 22,200 m[1]. During the construction, there was a fire, which caused large amount of smoke to occur in the tunnel. Sixteen workers died from carbon monoxide poisoning.[2][3] When this tunnel was completed, the time between Niigata and Tokyo went down to approximately one hour and forty minutes, three hours faster than using the Jōetsu Line.[4]
See also: Shimizu Tunnel
Also, when this tunnel was built, natural water was found during construction, and is sold in bottles.[5]
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