[JP] Shizuoka Mountain Road Tunnel for Chuo Shinkansen Construction Delayed by More Than Three Years
Posted: 24. May 2026, 17:09
[JP] Shizuoka Mountain Road Tunnel for Chuo Shinkansen Construction Delayed by More Than Three Years
Source: Chunichi Shimbun
Original title: リニア工事にともなう静岡市山間部の県道トンネル、開通は３年遅れに
Date: May 23, 2026, 05:10; updated May 23, 2026, 05:10
Original language: Japanese
Source: https://www.chunichi.co.jp/article/1255429
Accessed 2026-05-24
The opening of a prefectural road tunnel leading to the Ikawa district, a mountainous area in northern Shizuoka City, has been delayed by more than three years from the original schedule. According to information obtained from JR Tokai, the tunnel is now expected to open in October 2031.
The delay is attributed partly to the larger-than-expected amount of “soil requiring countermeasures” generated during excavation. This soil contains naturally occurring heavy metals, and a storage site for it has not yet been secured.
The article includes a photo caption identifying the construction site of the prefectural road tunnel, photographed in April 2026.
The tunnel will be about 4.7 kilometers long and will connect the Tamakawa and Ikawa districts via the Mitsumine-Ochiai prefectural road. In addition to serving as a local access road, it is also expected to carry material transport vehicles for construction of the Southern Alps Tunnel section of the Linear Chuo Shinkansen in Aoi Ward, Shizuoka City.
Source: Chunichi Shimbun
Original title: リニア工事にともなう静岡市山間部の県道トンネル、開通は３年遅れに
Date: May 23, 2026, 05:10; updated May 23, 2026, 05:10
Original language: Japanese
Source: https://www.chunichi.co.jp/article/1255429
Accessed 2026-05-24
The opening of a prefectural road tunnel leading to the Ikawa district, a mountainous area in northern Shizuoka City, has been delayed by more than three years from the original schedule. According to information obtained from JR Tokai, the tunnel is now expected to open in October 2031.
The delay is attributed partly to the larger-than-expected amount of “soil requiring countermeasures” generated during excavation. This soil contains naturally occurring heavy metals, and a storage site for it has not yet been secured.
The article includes a photo caption identifying the construction site of the prefectural road tunnel, photographed in April 2026.
The tunnel will be about 4.7 kilometers long and will connect the Tamakawa and Ikawa districts via the Mitsumine-Ochiai prefectural road. In addition to serving as a local access road, it is also expected to carry material transport vehicles for construction of the Southern Alps Tunnel section of the Linear Chuo Shinkansen in Aoi Ward, Shizuoka City.