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　NEXCO東日本　長野管理事務所（長野県長野市）では、E18上信越自動車道　須坂長野東インターチェンジ（以下「IC」）から信州中野IC間（上下線）において、老朽化した橋りょうのリニューアル工事に伴う対面通行規制を実施します。

　今回実施する工事は、上信越自動車道　須坂長野東ICから信州中野IC間に位置する豊洲高架橋（とよすこうかきょう）の上り線において、鉄筋コンクリート床版を新しい床版に取り替える工事のため、昼夜連続の対面通行規制を行います。

During the construction period, congestion and congestion on the Expressway, especially on the last day of the three consecutive holidays in October (peak hours 17:00 to 18:00), it is expected that there will be a maximum of 8 km on the In-bound line and 2 km on the Out-bound line. Will be done. We apologize for any inconvenience caused to customers using the Expressway. During construction Homepage for construction, Or the traffic congestion forecast will be posted on websites such as DraPla so please refer to it when using the Expressway.

This construction is necessary to use the Expressway safely and comfortably, so we kindly ask for your understanding and cooperation.

1. 1. Construction section

　上信越自動車道　須坂長野東IC～信州中野IC（上下線）

• Attached to each line E18 The indications such as indicate the route number (numbering) of Expressway.

2．規制期間及び渋滞予測

1. Restriction period: Tuesday, September 19, 2017 to Thursday, November 30, 2017 (73 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. Traffic congestion forecast
   During the construction period, traffic congestion is expected to occur, especially on weekends and public holidays. In particular, on the final day of a three-day weekend (peak time between 5pm and 6pm), traffic congestion of up to 8km is expected on In-bound lanes and up to 2km on Out-bound lanes, so please allow yourself plenty of time when traveling.

3．規制内容

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.

Four. Construction overview

　今回、床版を取り替える橋梁は、上信越自動車道　須坂長野東IC～信州中野ICに位置する豊洲高架橋で、一級河川八木沢川および県道を横架する鋼4径間連続箱桁橋（延長261m）の区間が対象となります。豊洲高架橋は、平成7年の開通から22年が経過しています。

During this period, the concrete cracks and deterioration of the concrete floor slabs and rust on the reinforcing bars were caused by minute cracks caused by the increase in wheel load due to the increase in size of the vehicle and the salt content contained in the antifreeze agent sprayed during the winter season. It is necessary to carry out plate replacement work.

In order to replace the concrete slab part of the bridge is In-bound because there is a need to be closed to traffic the line portion, Out-bound do the work the two-lane line side as a face-to-face way of up and down each one lane.

Main work contents

By replacing the existing deteriorated concrete slab with a new concrete slab, it will be transformed into a safe and comfortable Expressway.

• 写真は、平成28年の秋に実施した小仁熊橋（上り線）の床版取替工事の実例です。

Five. How to obtain traffic information

(1) Road traffic information available before going out

• Homepage for Toyosu Viaduct floor slab replacement work
  (Provides the time required to pass the construction section, traffic congestion prediction during the construction period, construction outline, detour information, etc.)
• 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
  または　03-5338-7524
• For the latest regulatory information, see DraTra "Please refer to the.
• NEXCO東日本　道路交通情報サイト「ドラとら」
  （全国の高速道路の交通情報を提供）
  【PC】
  【携帯】http://m.drivetraffic.jp/
• ハイウェイテレホン（5分毎に更新される交通情報を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）
• 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 during 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.

Expressway Renewal project
Now, bring safety and security to the next generation.
NEXCO EAST, in order to deliver safety and security to everyone,
Expressway We will work on the update and repair business.

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