Expressway renewal project
Tohoku Expressway Towada IC ⇔ Kosaka IC (upper and lower lines)

Notice to customers

[E4] Tohoku Expressway Towada IC-Kosaka IC
Renewal work End Notice of

Renewal work

~ Thank you for your understanding and cooperation for the long-term face-to-face traffic regulation ~

~ Thank you for your understanding and cooperation for the long-term face-to-face traffic regulation ~

October 25, 2019
East Nippon Expressway Co., Ltd.
Tohoku Regional Head Office Towada Management Office

We have Friday, October 25 E4 Tohoku Expressway Towada IC-Kosaka IC, the face-to-face traffic control and all-day lane control due to the renewal work of dilapidated bridges and tunnels have ended.

We apologize for any inconvenience caused by traffic congestion during the period. Thank you for your understanding and cooperation for the renewal work.

Renewal work will be carried out on the Tohoku Expressway after the 2020. We ask for your continued understanding and cooperation.

(Reference URL: https://www.e-nexco.co.jp/pressroom/press_release/tohoku/h31/0719/ )

1 Construction content

Expressway In order to keep the network function sound for a long time, we repaired the concrete floor slab of the aged bridge and repaired the tunnel (Out-bound line side).

2 traffic regulation section

[Akita Prefecture] Between Towada IC and Kosaka IC (Out-bound line)

3 Traffic regulation period

2019 August 19 (Mon) - Ryowamoto October 25 (Fri.)
(2019 August 19 to August 28, October 18 to October 25, all day lane restrictions)

Thanks to the cooperation of our customers and residents along the line 7 days I was able to release the regulation soon.

4 Situation photo

Concrete floor slab replacement work

Concrete floor slab replacement work

Tunnel repair work

[Situation of tunnel back cavity injection]
  • Tunnel back cavity injection status
  • Tunnel back cavity injection status

5 Future construction schedule

  • [1] May-July 2020 Approx. 4km between Towada IC and Kosaka IC
  • [2] August-October 2020 ・ ・ ・ About 3km between Kosaka IC and Ikarigaseki IC
  • [3] May-August 3rd, Reiwa Approx. 15km between Ashiro IC and Kazuno Hachimantai IC
  • [4] Reiwa 3rd September-November: About 15km between Ashiro IC and Kazuno Hachimantai IC
  • * Detailed implementation timing and construction details will be announced once the details are determined.
Expressway renewal project

Expressway renewal project

Safety and security for the next generation.
NEXCO EAST is dedicated to delivering safety and security to everyone.
Expressway We will work on updating and repair business.

URL:https://www.e-nexco.co.jp/renewal/