[E18] Joshin-Etsu Expressway and [E19] Nagano Expressway
Notice of all-day lane restrictions due to tunnel and bridge renovation work.

The latest regulatory information isDraTraPlease see.

PDF version [PDF: 1.4MB]

NEXCO EAST Nagano Construction Office (Nagano City, Nagano Prefecture) will implement all-day lane restrictions on E18 Joshin-Etsu Expressway (hereinafter "Joshinetsu Expressway") and E19 Nagano Expressway (hereinafter "Nagano Expressway") due to renewal work on aging tunnels and bridges. We apologize for any inconvenience this may cause to our customers, but please observe the speed limit and cooperate with safe driving within the regulated section.
Additionally, lane restrictions are expected to cause congestion, mainly on Sundays. For customers planning to use the eligible sections, please check transportation information on websites such as "DraTra," and adjust your usage time slot or allow extra time when using the service. This construction is necessary to ensure safe and comfortable use of the Expressway, so we ask for your understanding and cooperation.

1. 1. Overview of lane regulations

2. Requests for Use

1. Due to construction work, lane restrictions will be in place on In-bound lanes all day, reducing the number of lanes in each direction from the current two lanes to one. Because the lane width will be narrower in the lane-restricted section, please observe the speed limit, maintain a safe following distance, and take extra care to avoid rear-end collisions. Also, please be aware that lane positions may change as the construction progresses.
2. On Saturdays and Sundays, In-bound lane will be closed around the Sakudaira Smart Interchange on the northbound lanes, reducing the number of lanes in each direction from the current three to two. When driving, please observe the speed limit, maintain a safe distance between vehicles, and take sufficient precautions to avoid rear-end collisions. Also, there will be vehicles merging onto the main road from the Sakudaira Smart Interchange, so please drive carefully and pay close attention to what's ahead.
3. Construction vehicles may come and go around the construction site, so please be careful when driving ahead.
4. During the restricted period, traffic congestion may cause slower traffic flow. Before you go out, please check the latest lane restrictions and traffic information on the websites listed in "3. How to obtain traffic information". Also, please allow extra time for your journey.
5. During the construction period, we will provide information on construction restrictions using LED information boards and road signs, and call for caution to ensure safe driving. Please check this information before driving and drive safely.

3. How to obtain traffic information

(1) Guidance by distribution / posting

• Posters, leaflets and digital signage will be posted at nearby toll booths, SA and PA.
• A banner will be posted on the overpass on the Expressway.

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

• Expressway renewal project website
• NEXCO EAST Expressway Traffic Information Site "DraTra"
  Real-time information

  https://www.drivetraffic.jp/

  Construction regulation information

  https://www.drivetraffic.jp/construction-regulation
• NEXCO東日本お客さまセンター
  ナビダイヤル　0570-024-024（24時間オペレーターが対応）
  または　03-5308-2424
• 日本道路交通情報センター（JARTIC）の道路交通情報
  全国共通ダイヤル　050-3369-6666
  （携帯短縮ダイヤル#8011）
  ※全国どこからでも最寄りの情報センターに接続します。
  全国・関東甲信越情報　050-3369-6600
  長野情報　050-3369-6620
  ホームページ　https://www.jartic.or.jp/

(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.

• We also distribute information through our official accounts on X (formerly Twitter) and LINE.
  [X (old Twitter)]
  "NEXCO EAST (Kanto)" @e_nexco_kanto) Expressway
  "NEXCO EAST (Kanto Construction Regulations)" @e_nexco_kanto_k) Decision on implementing construction restrictions
  [LINE]
  "NEXCO EAST" @e-nexco) Road closures and weather information