RENEWAL
2025年9月12日（金）
終日車線規制が終了したことに伴い、リニューアル工事は終了しました。
ご協力ありがとうございました。
To pass on safety and security to the next generation
For a long time
Bridges, tunnels, etc.
Large-scale renewal work
We are carrying out.
Understanding and cooperation for construction
Thank you.
Regulations
Face-to-face traffic regulation
Construction will be carried out while securing 2 lanes (1 lane on each side) out of 4 round-trip lanes (2 lanes on each side).
- We will implement construction methods that can reduce the impact on traffic as much as possible, such as face-to-face traffic restrictions that ensure traffic in both directions without closing traffic.
section
E4 Tohoku Expressway
Kazuno Hachimantai IC - Kosaka IC (upper and lower lines)
period
May 8, 2025 (Thursday)
~ Sunday, September 28, 2025
All-day lane restrictions (May 8th to May 28th, September 5th to September 28th, 45 days in total)
All-day, two-way traffic restrictions (May 29th to September 4th, 99 days in total)
- All day restrictions will be applied on Saturdays, Sundays and public holidays.
- The construction period may change depending on the weather and work progress.
Construction details
By replacing the deteriorated existing concrete deck * with a new deck, it will be reborn as a Expressway that can be used safely and comfortably.
- A deck is a structural member that directly supports automobiles passing through bridges and transmits the load to the girder.
Precautions when using
Requests when passing special vehicles
Due to this traffic regulation, Special vehicles exceeding 3.0m in width cannot pass.
Customers using the service, please take a detour to the surrounding roads.
Also, please note that if you have obtained a special vehicle traffic permit (*) only for Expressway routes, you will also need to obtain a permit for general roads.
*What is special vehicle passage permission?
Based on the Road Law and Vehicle Restriction Ordinance, this is a permit required for special vehicles that exceed general restrictions (length, weight, vehicle width, etc.) to pass on public roads.
The maximum speed is limited to 50km / h in the restricted section.
Please check the traffic information in advance and leave with plenty of time.
Please be aware that lane widths and shoulder widths may be narrower.
If a traffic jam occurs, please turn on the hazard lamp at the end and signal the following vehicle to help prevent a rear-end collision.
Vehicles for construction work may enter and leave the area around the construction site, so please be careful when traveling ahead.
During the construction period, we will provide construction regulation information using road information boards, road signs, and simple information boards, and call attention to drive safely. Before riding, please check the above information before riding safely.
Image of information provision image around the construction site
東北道・八戸道・磐越道リニューアル工事予定
Contact information
Inquiries about Expressway information
リアルタイムの高速道路情報、渋滞予測に関する情報は「ドラとら」で
Expressway tolls and information on service areas at "DraPla"
NEXCO EAST Customer Center
0570-024-024
または
03-5308-2424
We listen to our customers 24 hours a day, 365 days a year.
Inquiries about Expressway information
Japan Road Traffic Information Center National Unified Number
050-3369-6666
Mobile speed dial (smartphone / mobile phone) # 8011
全国高速ダイヤル（自動応答専用）050-3369-6700
Road emergency dial# 9910
運転中の高速道路情報は、ハイウェイラジオ（1620kHz）をお聞きください。
Also, please use the SA / PA highway information terminal near you.