Hakkoda tunnel
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Hakkōda Tunnel 八甲 田 ト ン ネ ル |
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 The Hakkoda Tunnel under construction
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| use | Railway tunnel | |||
| traffic connection | Tōhoku Shinkansen | |||
| length | 26.445 km | |||
| Number of tubes | 1 | |||
| construction | ||||
| start of building | 1998 | |||
| completion | 2005 | |||
| business | ||||
| release | 2010 | |||
| location | ||||
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| Coordinates | ||||
| East portal | 40 ° 44 ′ 43 " N , 141 ° 6 ′ 22" E | |||
| West portal | 40 ° 45 ′ 50 " N , 140 ° 46 ′ 42" E | |||
Map with all coordinates: The Hakkōda Tunnel ( Japanese 八甲 田 ト ン ネ ル , Hakkōda tonneru ) is a 26.445 km long railway tunnel in the center of the northern Japanese prefecture of Aomori . It connects the cities of Shichinohe and Aomori and crosses the Hakkōda Mountains .
The Hakkōda Tunnel is part of the northern extension of the Tōhoku-Shinkansen high-speed line and is located there between the Shichinohe-Towada and Shin-Aomori stations . Preparations for construction began in August 1998, and the actual construction work began in June 1999. With the breakthrough on February 27, 2005, it exceeded the length of the Iwate-Ichinohe tunnel on the same route and was then the longest land tunnel in the world for two months until it was overtaken by the Lötschberg base tunnel in Switzerland on April 28, 2005 . Until the opening of the Gotthard Base Tunnel, the Hakkōda Tunnel was the longest two-lane land tunnel in the world. The tunnel was opened for use on December 4, 2010.
See also
Individual evidence
- ↑ Hakkoda Tunnel - The longest land-based double track tunnel in the world ( Memento of the original from July 13, 2011 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. on japanese-greatest.com, accessed February 14, 2016.
- ↑ Hakkoda Tunnel Breakthrough: The World's Longest Land Tunnel Stretches 26.5 Kilometers ( Memento of the original of July 13, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. from the Kajima construction company website, accessed February 14, 2016.
- ^ Tunnel de Hakkōda on structurae.info, accessed February 14, 2016.
