The latest regulatory information is DraTraPlease see.

NEXCO EAST Towada Management Office (Kazuno City, Akita Prefecture) E4 Tohoku Expressway Kosaka Kosaka Interchange (IC)~ Ikariseki Anchorage We will carry out renewal work on the deteriorated bridge between ICs.
The work to be carried out this time is a work to replace the deteriorated floor slab of Shin-enbu Sawabashi (Out-bound line side) in the target section with a new one.
During the construction period, face-to-face traffic control or lane control will be implemented throughout the day. Please cooperate in safe driving within the regulated section.
In addition, we do not anticipate the occurrence of traffic congestion due to construction work, but when going out, we will use the website dedicated to the renewal project [https://www.e-nexco.co.jp/renewal/] And "DraTra" and other sites, please check the traffic information.
Expressway This is a necessary work to keep the network function healthy for a long time. We will do our best to minimize the inconvenience to our customers, and we ask for your understanding and cooperation.

1. Traffic regulation section

2. Traffic regulation period

① 2020 Monday 17th August to Wednesday 18th November 94 days

• Saturday, Sunday and public holidays are also regulated throughout the day.
• The regulation period may change depending on the progress of construction work.

• Saturday, Sunday and public holidays are also regulated throughout the day.
• The regulation period may change depending on the progress of construction work.

3. Traffic restrictions

During the floor slab replacement work, we will regulate the passing lanes of the upper and lower lanes, and we will regulate the lanes all day. After that, we will reduce the section of each two lanes to one lane and consolidate it on one side to enforce face-to-face traffic all day. During the several days at the beginning and end of the construction period, there will be an all-day lane restriction for up and down lanes as a preparatory work to switch lanes. The regulation time is from 6:30 on the regulation start date to 16:00 on the regulation removal date. *For the construction regulation step diagram Attachment [PDF: 210KB] Please refer to.

Image of face-to-face traffic regulation

4. Construction content

About 34 years have passed since the opening of Shin-Enbu Sawabashi, which is located between the Kosaka IC and the Ikarugaseki IC on the Tohoku Expressway This causes deterioration of the concrete slab and rust on the reinforcing bars, so it is necessary to implement drastic measures against deterioration. By replacing the deteriorated existing concrete slab with a new slab, it will be reborn as a Expressway that is safe and comfortable to use.

In addition, we will carry out pavement repair work, road maintenance work, and detailed road inspections.

Construction image

All-day face-to-face traffic regulation Location map

5. Requests for use

1. Due to the construction work, the overtaking lane will be restricted and the all-day lane will be restricted for about 2.22 km. After that, we will reduce the section of each two lanes to one lane and consolidate it into the Out-bound lane to restrict all-day traffic. During the construction period, it is not expected that traffic congestion will occur due to face-to-face traffic control throughout the day, but if you use this section, we will make further efforts to drive safely, and when you use it, you will have time to spare. Please go out with us.
2. Vehicles for construction work may enter or leave the area around the construction site, so please be careful when traveling ahead.
3. Since the driving lanes and shoulders are narrow in the two-way traffic regulation section, when traveling, please observe the regulation speed, ensure the distance between the vehicles, and pay sufficient attention to the collision accident. In addition, the lanes change significantly before and after the two-way traffic regulation section, so please follow the local information signs.
4. During the construction period, we will provide information on construction regulations that utilize road information boards and road signs, and call for caution to drive safely. Before riding, please check this information and drive safely.
5. Before going out, check the website such as "DraTra" for the latest traffic restrictions and congestion information.

Image of information provision image around the construction site

• The picture shows the actual information provided by the Regional Head Office.

6. Efforts to minimize inconvenience to customers due to construction work

[Strengthening of information provision]

In addition to the information board (electric bulletin board) on the Expressway, the regulation plan will be announced in advance in the Tohoku region through TV commercials, radio commercials, and newspaper advertisements.・ Post a leaflet.

[Information image]

• This is a publicity material for the renewal work that was carried out this year within the jurisdiction of our Regional Head Office.

7. How to get traffic information

(1) Road traffic information available before going out

(2) Road traffic information available during driving

• Official Twitter account "NEXCO EAST (Tohoku)" ( @e_nexco_tohoku ) Also delivers information.

8. Plans for renewal work between Ashiro IC and Ikariseki IC in the future

Period and scheduled section where face-to-face traffic regulation will be implemented

1. May-August 3rd, Riwa ・・・ About 15km between Ashiro IC and Kazunohachimantai IC (Out-bound line)
2. September-November, 3rd year of Reiwa ・・・ About 15km between Ashiro IC and Kazunohachimantai IC (In-bound line)

• We will make a press release as soon as the details about the implementation timing and construction details are decided.

Location map