[E17] Kan-Etsu Expressway up and down lines, Showa IC to Numata IC
Notice of all-day traffic restrictions due to renovation work

The latest regulatory information isDraTraPlease see.

PDF version [PDF:571KB]

NEXCO EAST Takasaki Management Office (Takasaki City, Gunma Prefecture) will be carrying out Expressway renewal work at Mimurozawa Bridge, located on the E17 Kan-Etsu Expressway (between Showa IC and Numata IC). Please note that the number of lanes will be reduced due to the all-day traffic restrictions associated with the work.
We apologize for any inconvenience this may cause, but we ask that you please obey the speed limit in restricted areas and drive safely.
Expressway renewal construction is necessary to ensure safe and comfortable use of Expressway, so we ask for your understanding and cooperation during the construction work.

1. Overview of traffic regulations

Traffic restriction section: Kan-Etsu Expressway Showa IC to Numata IC (both inbound and outbound lanes)

2. Traffic regulation period

• During the construction period, traffic jams of up to approximately 5km are predicted to occur on In-bound lanes on Sunday, November 17th, mainly between 2pm and 4pm, traffic jams of up to approximately 5km on Out-bound lanes on Saturday, November 23rd, mainly between 10am and 12pm, and traffic jams of up to approximately 8km on the In-bound lanes on Sunday, November 24th, mainly between 3pm and 4pm.
• During the road restrictions, we ask for your cooperation in easing congestion by taking detours around construction areas and avoiding peak times.
• Actual traffic conditions may differ from predictions due to accidents or weather conditions, so please check the latest traffic information before departing.

3. Traffic restrictions

The lane width and shoulder width in the restricted area will be narrowed. In addition, lane operation will be changed depending on the progress of the construction. Please observe the speed limit, maintain a safe distance from the vehicle in front, and take care to avoid rear-end collisions.

<All-day lane restrictions>

<All-day traffic restrictions>

　Please also see the special website.

Four. Construction content

Concrete decks that have been damaged due to aging and an increase in large vehicles will be replaced with new, more durable prestressed concrete decks. In addition, high-performance waterproofing will be applied to the waterproof layer to prevent deterioration of the deck.

Construction image photograph

Five. Request when passing special vehicles

Due to restrictions imposed by this construction, special vehicles over 3.0m wide will not be able to pass through. Customers who wish to use this road are asked to take a detour to nearby roads.
In addition, please note that if a special vehicle permission ^(※) has only been obtained for Expressway routes, you will also need to obtain permission for general roads.

1. What is special vehicle passage permission?
   Based on the Road Law and the 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.

6. Request when using

1. Traffic congestion is predicted to occur in some sections of the construction zone, so please allow plenty of time for your trip.
2. As the driving lanes and road shoulders are narrow, please observe the speed limit when passing, maintain a safe following distance, and be careful to avoid rear-end collisions. In addition, the lanes change significantly before and after the restricted section, so please follow the local information signs.
3. Vehicles for construction work may enter and leave the area around the construction site, so please be careful when traveling ahead.
4. During the construction period, we will provide traffic information using LED information boards, construction restriction information using road information boards and road signs, and will be calling for caution so that people can pass safely. Please check this information when passing through and pass through safely.

Image of information provision image around the construction site

7. How to get traffic information

• "DraPla", a site full of useful information on Expressway nationwide
  https://www.driveplaza.com/
• Expressway traffic information service "Drive Traffic (DraTra)"
  Real-time information

  https://www.drivetraffic.jp/

  Construction regulation information

  https://www.drivetraffic.jp/construction-regulation
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• X (formerly Twitter) official account
  "NEXCO EAST (Kanto) (@e_nexco_kanto) provides information on Expressway in the Kanto region.
• Highway radio
  Highway radio (AM1620kHz)
  Broadcasting sections are indicated by signs on the Expressway
• Highway Information Terminal
  Wide-area road traffic information is notified on the monitor screen installed in SA / PA.