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[E19] Between Azumino IC and Koshoku IC on the Nagano Expressway
Notice of day / night continuous lane restrictions and Out-bound line nighttime closure due to bridge / tunnel renewal work

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  • Press Release Kanto Regional Head Office
  • [E19] Nagano Expressway between Azumino IC and Koshoku IC Notice of day and night continuous lane restrictions and Out-bound line nighttime closure due to bridge renewal work
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The latest regulatory information isDraTraPlease see.

PDF version 【PDF: 784KB】

Expressway renewal project logo image image 1

April 8, 4th year of Reiwa
East Nippon Expressway Co., Ltd.
Nagano Construction Office

NEXCO EAST At the Nagano Construction Office (Nagano City, Nagano Prefecture), E19 Nagano Expressway We will implement day and night continuous lane restrictions due to the renewal of the aging NakasoneGawa Bridge and the Iponmatsu Tunnel between the Makoto Interchange (hereinafter referred to as "IC") and the Koshoku IC (upper and lower lines). In addition, in the renovation of the Iponmatsu Tunnel, traffic will be closed at night on the Out-bound line between Azumino IC and IC on Tuesday, June 7.
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 and ask for your understanding and cooperation in the construction.

1. 1. Overview of lane regulations

Route E19 Nagano Road
section
  1. Omi IC-Koshoku IC up and down line
  2. Azumino IC ⇒ Koshoku IC Out-bound line
Implementation period
  1. Day and night continuous lane regulation
    In-bound line (Koshoku IC ⇒ Omi IC): May 9th (Monday) -July 15th (Friday), 4th year of Reiwa
    Out-bound line (Omi IC ⇒ Koshoku IC): May 9th (Monday) -July 8th (Friday), 4th year of Reiwa
  2. Closed at night
    Out-bound line (Azumino IC ⇒ Koshoku IC): June 7, 4th (Tuesday) 1 night
Time zone
  1. 24 hours (all day)
  2. From 22:00 pm to 6:00 the next morning
Construction content Floor slab replacement work (see "6. Overview of bridge slab replacement work")
Tunnel reinforcement work (see "6. Outline of tunnel reinforcement work")

◆Construction image photograph

[Bridge renewal work]

Photograph of erection by a gate type erection machine
Construction by a gate type erection machine
Photograph of the situation after the construction is completed
Status after construction is completed

[Tunnel renewal work]

Photograph of the guard passage removal situation
Observer passage removal status
Photograph of the completion status of the lining cradle
Completion status of lining cradle

2. Construction section

Nagano Expressway Omi IC-Koshoku IC (upper and lower lines)

Image image of construction section

3. 3. Lane regulation period

  1. In-bound line (Koshoku IC ⇒ Omi IC)
    Restriction period: May 9th (Monday) -July 15th (Friday) (68 days)
    2. Image of lane regulation period In-bound line (Koshoku IC ⇒ Omi IC)
    • Lanes will be restricted day and night on weekends and holidays.
    • Depending on the weather and work progress, the regulation period and the time to switch between the overtaking lane and the driving lane may change.
  2. Out-bound line (Omi IC ⇒ Koshoku IC)
    Restriction period: May 9th (Monday) -July 8th (Friday) (55 days)
    3. Image of lane restriction period Out-bound line (Omi IC ⇒ Koshoku IC)
    • Regulations will be enforced day and night.
    • The May regulation starts at 7:00 am on Monday ⇒ will be lifted at 6:00 am on Saturday.
    • Depending on the weather and work progress, the regulation period and the time to switch between the overtaking lane and the driving lane may change.
    • We will inform you about the decision to close the road on Twitter etc. around 17:00 on the day.

Four. About transfer adjustment due to traffic closure

　通行止めにより高速道路を一旦流出し、通行止め区間を迂回して、再流入して順方向に乗り継がれるお客さまには、ご利用区間に応じて通行料金を調整する「乗継調整」を実施します。
　（別紙-2【PDF：210KB】参照）

Transfer designated IC

Closed place Outflow designation IC Re-inflow designated IC
[Nagano Expressway] (Out-bound line)
Azumino IC → Koshoku IC		 [Nagano Expressway] (Out-bound line)
Azumino IC
Azusagawa Smart IC (*)
Matsumoto IC		 [Nagano Expressway] (Out-bound line)
Koshoku IC
[Joshinetsu Expressway] (Out-bound line)
Nagano IC, Suzaka Nagano East IC
[Joshinetsu Expressway] (In-bound line)
Sakaki IC, Ueda Sugadaira IC
  • Azusagawa Smart IC is limited to ETC vehicles of all models (12m or less).

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.

Five. Traffic regulation details

We will implement day and night continuous lane restrictions. When driving, please follow the local signs and drive safely.

  1. In-bound line (Koshoku IC ⇒ Omi IC)
    Regulation extension: Approximately 2.0km
    (Because lane restrictions cannot be started safely in front of the Shibayama tunnel, lane restrictions will be applied from the front of the entrance on the Koshoku IC side of the Yawata tunnel.)
    2. Traffic regulation details In-bound line (Koshoku IC ⇒ Omi IC) image image
  2. Out-bound line (Omi IC ⇒ Koshoku IC)
    Regulation extension: Approximately 3.4km
    3. Traffic regulation details Image of Out-bound line (Omi IC ⇒ Koshoku IC)

6. Construction outline

  1. Bridge floor slab replacement work
    The Nakasone Bridge, located on the Nagano Road In-bound Line Omi IC ⇒ Saraku IC, has a concrete floor due to fine cracks caused by an increase in wheel load due to the increase in vehicle size and salt contained by spraying antifreeze agents during the winter. Since the plate has deteriorated and the reinforcing bars have rusted, we will replace it with a more durable precast concrete deck.

    2. [Details of main construction]
    By removing the deteriorated existing concrete deck of Nakasone Bridge and installing a new concrete deck, we will improve the running performance and safety.

    Image image of bridge floor slab replacement work
  2. トンネル補強工事
    長野道　下り線　麻績IC⇒更埴IC間に位置する一本松トンネルにおいて、トンネルの地山の膨張による路面の隆起や損傷に対するトンネル補強工事を実施します。
    令和4年6月7日は、トンネル内の中央排水管を切り替えるため、下り線で夜間通行止めを行います。
    夜間通行止め区間（安曇野IC⇒更埴IC）の通行止めに伴う乗継料金調整については、別紙-2【PDF：210KB】をご確認ください。

    3. [Details of main construction]
    Inverts are installed to improve stability in order to make the ring-shaped stronger structure for tunnels where excessive force is applied from around the tunnel. 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 July 4th year of Reiwa, as a preliminary step to the installation of the invert, the passage inside the tunnel (observer passage, audit path) was removed and the concrete (lining cradle) supporting the tunnel wall surface (lining) was installed. I will do it.

    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.

These works will be carried out with continuous lane restrictions day and night. We ask for your understanding and cooperation as this work is necessary to use the Expressway safely and comfortably.

7. 7. Request when using

  1. Due to the construction, the number of lanes will be reduced from the current two lanes on each side to one lane due to the continuous day and night lane regulation for about 2.0km on the In-bound line and about 3.4km on the Out-bound line. 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. 夜間通行止め区間（安曇野IC⇒更埴IC）の通行止めに伴う乗継料金調整については、別紙-2【PDF：210KB】をご確認ください。なお、夜間通行止め実施時以外は、昼夜連続規制区間（更埴IC⇒麻績IC）の迂回に伴う乗継料金調整は行いません。

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).
  • Information will also be distributed on the official LINE account.
LINE ID: @e_nexco_kanto_naga Image link to the friend addition page
LINE ID: @e_nexco_kanto_naga
長野道　麻績IC⇔更埴IC間　交通情報　LINE友だち追加への二次元コード画像リンク（外部リンク）
Two-dimensional code
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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