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NEXCO EAST Saku Management Office (Saku City, Nagano Prefecture), E18Joshinetsu Expressway (hereinafter "Joshinetsu way") We are implementing tunnel repair work from April, 2017 era on the down line between Usui Karuizawa Interchange (IC) and Saku IC. Thank you very much for your understanding and cooperation in construction.

As a third report, we will inform you of the regulatory schedule until the end of April 2018, including the traffic congestion period of year-end and new year. Also, during the period,Homepage for construction We have prepared, so please refer to it when using the Expressway.

This work is necessary to keep the Expressway network function healthy for a long period of time, so we ask for your understanding and cooperation.

1 Construction section Joshinetsu Expressway Usui Karuizawa IC-Saku IC (Out-bound line)

(1) Restricted section

2 Regulation period

Period covered: December 17 (Sun) 2017 - mid April 30 (day and night continuous lane regulation)

However, during the traffic congestion period ( December 23 (Sat), 2017 - January 8 (Mon · Holiday), 2018, February 10 (Sat) -​ February 12 (Mon · Holiday)) will not implement lane regulation. Furthermore, before and after the traffic congestion period, on Saturdays and Sundays traffic volume is more than usual, so it is expected that the flow of car will be worse, so please leave with time with time.

【The schedule of regulation from December 17 (Sun) in 2017 to mid April of 2018 is as follows. 】

*Regular implementation dates after mid-April will be announced in order.

3 Construction overview

Joshinetsu Expressway This is the repair work for the "Akari-san" tunnel between Usui Karuizawa IC and Saku IC (Out-bound line).

Since the lower part of the tunnel is damaged and the pavement surface is being damaged, full-scale repair work will be carried out before the traffic is affected.

Since it takes time to reinforce the damaged lower part of the tunnel body and it is necessary to construct each lane, we will carry out the construction under the day and night continuous lane regulation.

By reinforcing the lower part of the tunnel body, the structure of the tunnel is strengthened, and damage to the paved road surface is repaired to improve safety.

We ask for your understanding and cooperation so that our customers can use the Expressway safely.

State of actual construction

Of the approximately 150m invert installation extension, about 50m has been completed.

Content of regulation

The maximum speed is 50km/h in the lane regulation section.
Also, since the width of the lane is narrow at the construction site,
When using it, please follow the signs on site and drive safely.

4 How to obtain traffic information

(1) Road traffic information available before going out

(2) Road traffic information available during driving

• * Twitter's official account "NEXCO EAST (Kanto)" (@e_nexco_kanto ) Also delivers information.