Shin-Kanmon Tunnel
| Shin-Kanmon Tunnel | |
|---|---|
Tunnel entrance | |
Interactive map of Shin-Kanmon Tunnel | |
| Overview | |
| Line | Sanyō Shinkansen |
| Location | Honshu–Kyushu |
| Coordinates | 33°57′57.4″N 130°57′47.2″E / 33.965944°N 130.963111°E |
| Operation | |
| Opened | 10 March 1975 |
| Owner | JR West |
| Operator | JR West |
| Character | Passenger |
| Technical | |
| Line length | 18.713 km (11.628 mi) |
| No. of tracks | 2 |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Operating speed | 300 km/h (185 mph) |
The Shin-Kanmon Tunnel (Japanese: 新関門トンネル) is a 18.713-kilometre-long (11.628 mi) undersea railway tunnel under the Kanmon Straits connecting Shin-Shimonoseki Station on the Japanese island of Honshu and Kokura Station on Kyushu. At the time of opening in March 1975, it was the longest railway tunnel in Japan before being overtaken by in 1988 the opening of the Seikan Tunnel.