[JP] Maglev's Chūō Alps Tunnel: Excavated Soil

[latestnews]

Construction of the Chūō Alps Tunnel for the Linear Shinkansen: 250,000 m³ of Excavated Soil to Be Transported to the “Oshidashi North” Disposal Site in Nagiso Town


On the 8th, Central Japan Railway Company (JR Tokai) released on its website an overview of the construction project and environmental conservation plans for the “excavated soil disposal site (Oshidashi North),” which is being developed in Azuma, Nagiso Town, in connection with the construction of the Chūō Alps Tunnel for the Linear Chūō Shinkansen. The site will cover an area of approximately 100,000 square meters and will primarily receive 250,000 cubic meters of surplus soil from the Ogoshi construction section of the same tunnel.

Source: https://www.chunichi.co.jp/article/1234821 Accessed April 8, 2026,

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Chunichi_Screenshot 2026-04-08

Screenshot 2026-04-08 at 18-38-51 リニア新幹線の中央アルプストンネル工事、南木曽町の「押出北」置き場に25万㎥の残土搬入へ：中日新聞Web.png (971.08 KiB) Viewed 34755 times

Accessed 2026-04-08

[latestnews]

[JP] Maglev Faces Water Depletion and Excess Soil Challenges: Early Opening Still the Goal
Source: Asahi Shimbun
Original title:
（リニアのゆくえ　静岡工区着工：下）水がれ・残土…課題山積み　摩擦あっても「早期開業を」
Date: July 28, 2026, 05:00
Original language: Japanese
Web link: https://www.asahi.com/articles/DA3S16514561.html
Accessed: July 28, 2026

In late June, double typhoons struck Japan, yet the “Tenno-sama no Ido” well in Mizuho City, Gifu Prefecture, remained dry two days later. Local resident Tatsujiro Hasegawa (81) reacted: “[Translated quote] It’s never dried up in hundreds of years…”

In February 2024, an incident occurred at one of five joint water sources.

The article, part of a series on the maglev’s future, addresses water depletion and excess soil challenges. Despite these issues and friction, stakeholders continue to push for early opening.

[latestnews]

Screenshot 2026-07-28 162744.jpg (138.66 KiB) Viewed 736 times

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A spoil disposal site for the Linear Chuo Shinkansen tunnel construction project. A residents’ group is calling for a change in the disposal method = June 25, Motoyama, Toyooka Village, Nagano Prefecture; photo by Ryo Shimura

Source: [JP] Maglev Faces Water Depletion and Excess Soil Challenges: Early Opening Still the Goal
Source: Asahi Shimbun
Original title:
（リニアのゆくえ　静岡工区着工：下）水がれ・残土…課題山積み　摩擦あっても「早期開業を」
Date: July 28, 2026, 05:00
Original language: Japanese
Web link: https://www.asahi.com/articles/DA3S16514561.html
Accessed: July 28, 2026