Sasago Tunnel
The Sasago Tunnel (笹子トンネル, Sasago Tonneru) is a twin-bore motorway tunnel on the Chūō Expressway located on the border of the cities of Kōshū and Ōtsuki in Yamanashi Prefecture, Japan. It is located about 80 kilometres (50 mi) west of the capital Tokyo. It was built in 1977.
Kōshū entrance to the Sasago Tunnel May 2009 | |
| Overview | |
|---|---|
| Location | Yamanashi Prefecture |
| Coordinates | 35°37′16″N 138°47′34″E |
| Status | Operational |
| Route | Chūō Expressway |
| Start | Ōtsuki, Yamanashi |
| End | Kōshū, Yamanashi |
| Operation | |
| Opened | 1977 |
| Closed | 2012-13 (temporary closure due to ceiling collapse) |
| Owner | Central Nippon Expressway Company |
| Traffic | Automobiles • Motorbikes |
| Technical | |
| Length | 4.784 kilometres (2.973 mi) (Tokyo-bound) 4.717 kilometres (2.931 mi) (Nagoya-bound) |
| No. of lanes | 2 uni-directional in each bore |
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