- Tunnel
New construction work for Kumamoto Nakaoyama Tunnel No.3
| Orderer | Kyushu Regional Development Bureau, Ministry of Land, Infrastructure, and Transport and Tourism |
|---|---|
| Completion | 2022 |
| Structure and scale | NATM method: Road tunnel: Length of construction = 1,428m; width = 9.5m |
| Location | Kumamoto Prefecture |
| Application | Road Tunnel |
A new road tunnel measuring 1,428m in overall length was constructed in Nagano-cho, Minamata City as part of the Minami Kyushu Westbound Expressway, a 140km arterial high standard highway.