Nagano Expressway Azumino IC-Asagi IC (upper and lower lines)
Notice of face-to-face traffic regulation due to large-scale bridge repair work

• PDF version [PDF: 941KB]

NEXCO EAST Nagano Management Office (Nagano City, Nagano Prefecture) enforces face-to-face traffic control between the Nagano Expressway Azumino Interchange (hereinafter “IC”) and the Asahi IC (upper and lower lines) due to the construction work of aged bridges. I will.

The construction to be carried out this time is to replace the deteriorated reinforced concrete floor slab with a new floor slab at the (In-bound line) of Onikumabashi, which is located between Azumino IC and Asagi IC on the Nagano Expressway One-lane traffic control is applied day and night.

Expressway congestion/congestion during the construction period, especially up to 4km on the In-bound line, Out-bound on the first day of three consecutive holidays in September and October (peak hours from 17:00 to 18:00). It is expected that there will be up to 13km of congestion on the line. During the construction period, we will post the traffic congestion forecast on the construction dedicated homepage or websites such as DraPla, so please refer to it when using 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 Nagano Expressway Azumino IC-Asagi IC (upper and lower lines)

2 Traffic regulation period and congestion forecast

(1) Regulation period Monday, August 29, 2016 to Wednesday, November 30, 2016 (94 days)

• We will continue to work on weekends and holidays day and night.
• The construction period may change depending on the weather and work progress.

(2) Congestion Forecast

During the construction period, we anticipate the occurrence of traffic jams, mainly on weekends and holidays. Especially on the first day of three consecutive holidays (peak hours 17:00 to 18:00), In-bound to 4km of traffic can be expected on the up line and up to 13km on the Out-bound line.

3 Traffic restrictions

In the floor slab replacement work, we will reduce the section of each two lanes of up and down lanes to one lane and implement face-to-face traffic regulation to concentrate on Out-bound lanes. For the first few days at the start and end of the construction period, overtaking lane restrictions will be imposed on the upper and lower lanes in preparation for switching to two-way traffic regulation.

4 Construction overview

Located at Nagano Expressway Azumino IC-Asagi IC, Kunikumabashi is a steel 4-span continuous plate girder bridge (197m long) that crosses over the Kunikuma dam. It has been 23 years since it opened in 1993. ..

During this time, fine cracks caused by an increase in wheel load due to an increase in the size of the vehicle and salt contained by spraying the deicing agent during the winter caused deterioration of the concrete floor slab and rust on the reinforcing steel. It is necessary to carry out general repair work.

To replace the concrete slab part of the bridge, In-bound it is necessary to perform work in the line portion closed to traffic, Out-bound to perform replacement work for two-lane line side as Two way operation of the upper and lower one lane is.

Main work contents

By removing the deteriorated existing concrete slab and installing a new concrete slab, we will improve the running performance and safety.

• The photo shows an example of floor deck replacement work at another bridge.

5 How to obtain traffic information

1. Road traffic information that can be obtained before going out
   • Kunikumabashi floor slab replacement work website
     (Provides time required to pass the construction section, traffic congestion prediction during the construction period, construction outline, detour information, etc.)
   
   
   • For the latest regulatory information, see DraTra "Please refer to the.
   
   
   • NEXCO EAST Road Traffic Information Site "Dora Tora"
     (Provides traffic information for Expressway nationwide)
     [PC]
     [Mobile] http://m.drivetraffic.jp/
   
   
   • ハイウェイテレホン
     （5分毎に更新される高速道路の交通最新情報をハイウェイテレホン（自動音声）で24時間提供）
     前橋局 027-252-1620
     長野局 026-278-1620
     （携帯電話・PHS短縮ダイヤル#8162）
   
   
   • NEXCO東日本お客さまセンター
     （24時間、365日、お客様の声をお聞きしています）
     ナビダイヤル 0570-024-024（24時間オペレーターが対応）
     ナビダイヤル 03-5338-7524（PHS、IP電話のお客さま）
   
   
   • 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。
     ※PHS、IP電話など一部の電話からはご利用できません。
     全国・関東甲信越情報 050-3369-6600
     インターネット
2. Road traffic information available while driving
   • 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.

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