[E18] Joshin-Etsu Expressway Out-bound Line Matsuida-Myogi IC ⇒ Usui-Karuizawa IC
Day and night continuous lane regulation due to tunnel renewal work and
Notice of nighttime closure [3rd report]

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  • [E18] Joshin-Etsu Expressway Out-bound Line Matsuida-Myogi IC ⇒ Usui-Karuizawa IC Tunnel renewal work for day and night continuous lane restrictions and nighttime closure notice [3rd report]

All-day face-to-face regulation of Joshinetsu Expressway Matsuida Myogi IC - Usui Karuizawa IC (Out-bound line) has ended.
Thank you for your cooperation.

The latest regulatory information isDraTraPlease see.

PDF version 【PDF: 784KB】

Expressway renewal project logo image image 1

April 15, 4th year of Reiwa
East Nippon Expressway Co., Ltd.
Nagano Construction Office

NEXCO EAST The Nagano Construction Office (Nagano City, Nagano Prefecture) Joshin-Etsu Expressway E18 ("Joshinetsu Expressway") Out-bound We will restrict lanes day and night during the renewal of the Aging Takaiwayama Tunnel between the Matsuida Myogi Interchange (hereinafter referred to as the "IC") and the Usui Karuizawa IC. In addition, the road will be closed at night on Monday, October 31. We apologize for any inconvenience this may cause, but please comply with the speed limit within the regulated section and cooperate in safe driving.
In addition, we do not predict the occurrence of traffic jams due to construction regulations, but please check traffic information on websites such as "Expressway Renewal Project Site" and "DraTra" when you go out.
We apologize for any inconvenience this may cause, but please understand and cooperate with the construction work as it is necessary to use the Expressway safely and comfortably.

1. 1. Overview of lane regulations

Route E18 Joshin-Etsu Expressway
section Matsuida-Myogi IC ⇒ Usui-Karuizawa IC Out-bound line
Implementation period
  1. Day and night continuous lane regulation
    Out-bound line (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC)
    May 9th (Monday) -December 16th (Friday), 4th year of Reiwa * Excluding weekends and holidays, some periods
  2. Closed at night
    Out-bound line (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC)
    October 31, 4th year (Monday) 1 night
Time zone
  1. 24 hours (all day)
  2. 21:00 pm-5 pm the next morning
Construction content Tunnel reinforcement work (see "6. Outline of tunnel reinforcement work")

◆ Construction image photo
[Tunnel reinforcement work]

Photograph of lining cradle excavation situation
Underlay cradle excavation status
Photograph of the completion status of the lining cradle
Completion status of lining cradle
Photograph of the situation of earth retaining pile driving
Soil pile driving situation
Photograph of the completion of the earth retaining pile
Completion of earth retaining pile placement

2. Construction section

Joshinetsu Expressway Matsuida-Myogi IC ⇒ Usui-Karuizawa IC (Out-bound line)

Image image of construction section

3. Regarding transit adjustments due to suspension of traffic

For customers who temporarily flow out of the Expressway due to traffic closure, bypass the closed section, re-inflow and transfer in the forward direction, we will implement "transfer adjustment" to adjust the toll according to the section used. increase. (See Attachment-2 [PDF: 159KB])

Transfer designated IC

Closed place Outflow designation IC Re-inflow designated IC
[Joshinetsu Expressway] (Out-bound line)
Matsuida-Myogi IC ⇒ Usui-Karuizawa IC
[Joshinetsu Expressway] (Out-bound line)
Shimonita IC
Matsuida-Myogi IC
[Joshinetsu Expressway] (Out-bound line)
Usui Karuizawa IC, Sakudaira Smart IC (* 1)
Saku IC, Komoro IC
[Chubu Odan Expressway] (Out-bound line) (* 2)
Sakukita IC-Yachiho Kogen IC
  • 1 Sakudaira Smart IC is limited to ETC vehicles of all models (12m or less).
  • 2 There is no tollhouse at each IC because the Chubu Odan Expressway is a free section.

How to use transit adjustment

<< ETC customers >>

  • Customers using ETC are requested to run the outflow designated IC wirelessly and the re-inflow designated IC wirelessly. (No transit certificate will be issued for ETC vehicles)
  • ETC time zone discount will be applied, considering the transited journey as one.
    Toll charges are adjusted at the time of billing, so they may differ from those displayed at the toll gate.
  • Insert the same ETC card for all journeys and pass through the ETC lane at the tollgate.

<< Customers for cash, etc. >>

  • Customers who pay by cash, etc. should receive the "passage certificate" at the outflow designated IC, and then get the "passport" at the re-inflow designated IC, and then make the "transfer" at the toll booth that pays the fare first. Please give us your "certificate" and "passport".

《Common to customers such as ETC and cash》

  • If the suspension of traffic is released after the outflow designated IC is released, the fare will be adjusted even if it is re-introduced from the IC (including the outflow designated IC) in the closed road section in the forward direction.

Four. Lane regulation period

Regulation period May 9, 4th year of Reiwa (Monday) -Friday, 16th December, 4th year of Reiwa (125 days)
* Excluding weekends and holidays, some periods

Image of lane regulation period
  • The regulation starts at 6 am on Monday ⇒ will be lifted at 8 pm on Friday.
  • The regulation period may change depending on the weather and work progress.
  • We will inform you about the decision to close the road on Twitter etc. around 17:00 on the day.

Five. Traffic regulation details

We will implement day and night continuous lane restrictions. When driving, please follow the local signs and drive safely.
Out-bound line (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC)
Regulation extension: Approximately 3.0km

Image of traffic restrictions

6. Outline of tunnel reinforcement work

At the Takaiwayama tunnel between the Joshinetsu Expressway Out-bound line Matsuida-Myogi IC and Usui-Karuizawa IC, we will carry out tunnel reinforcement work to prevent uplift and damage to the road surface due to the expansion of the tunnel ground.
On October 31, 4th year of Reiwa, we will close the traffic at night on the Out-bound line to switch the central drainage pipe in the tunnel.
Please refer to Attachment-2 [PDF: 159KB] for the transfer fare adjustment due to the traffic closure of the nighttime closed section (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC).

[Details of main construction]
Inverts are installed to improve stability for tunnels that are overloaded from the ground to create a stronger ring-like structure. Specifically, after excavating the road surface, concrete (invert) will be installed to reinforce the bottom of the tunnel, and then pavement work will be carried out to return it to a road that can be driven. From May to December 4th year of Reiwa, concrete (lining cradle) to support the tunnel wall surface (lining) and foundation piles (earth retaining piles) of guard fences to ensure the safety of customers will be installed.

Image image before construction
Image image after construction
  • Invert is to connect the bottom of the tunnel to the reverse arch with concrete, which increases the yield strength and prevents subsidence and deformation.

7. 7. Request when using

  1. Since the construction section will be subject to continuous day and night lane restrictions over a Out-bound line of approximately 3.0km, the number of lanes will be reduced from the current two lanes on each side to one lane. Since the lane width is narrow in the day and night continuous lane regulation section, please observe the regulated speed when driving, secure the inter-vehicle distance, and be careful about rear-end collisions. In addition, the lane position will change depending on the progress of construction, so please be careful when passing.
  2. Vehicles for construction work may enter and leave the area around the construction site, so please be careful when traveling ahead.
  3. Before going out, please check the latest lane regulations and traffic information on the site described in "8. How to obtain traffic information". In addition, please leave plenty of time when using it.
  4. During the construction period, we will provide construction regulation information using LED information boards and road signs and call attention to driving safely. Please check this information before driving and drive safely.
  5. Please refer to Attachment-2 [PDF: 159KB] for the transfer fare adjustment due to the traffic closure of the nighttime closed section (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC). In addition, the transfer fare will not be adjusted due to the detour of the day and night continuous restricted section (Matsuida-Myogi IC ⇒ Usui-Karuizawa IC) except when the traffic is closed at night.

8. How to get traffic information

(1) Guidance by distribution / posting

  • Information on posters, leaflets and digital signage will be posted at nearby tollhouses, SA / PA.
  • A banner will be posted on the overpass on the Expressway.

(2) Road traffic information that can be obtained before going out

(3) Road traffic information available while using the Expressway

  • Road information board
  • Highway radio (AM1620kHz)
    The highway radio section is indicated by signs on the Expressway.
  • Highway Information Terminal
    Wide-area road information is provided in an easy-to-understand manner on the monitor screens installed in SA / PA.
  • Traffic information is also distributed on Twitter's official account "NEXCO EAST (Kanto)" (@e_nexco_kanto). We will inform you about the decision to implement the road closure in "NEXCO EAST (Kanto Construction Regulations)" (@e_nexco_kanto_k).
Expressway renewal project logo image image 2

Expressway renewal project
Now, safety and security are passed on to the next generation.
NEXCO EAST will work on the renewal and repair business of Expressway in order to deliver safety and security to everyone.
Or search for "high-speed renewal".

The NEXCO EAST Group has positioned the period from 2021 to 2025 as "a period that contributes to the achievement of the SDGs and transforms into a new future society," and is making various efforts.
We believe that this "renewal work" initiative will contribute to the SDGs goals No. 8, 9, and 11 as business activities that lead to the development of safe, secure, and reliable infrastructure.

Image image of the SUSTAINABLE DEVELOPMENT GOALS logo and the 8th, 9th, and 11th logos of the SDGs target
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