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　NEXCO東日本東北支社八戸管理事務所（青森県八戸市）は、E4A八戸自動車道　一戸インターチェンジ（IC）～九戸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等に伴う終日対面通行規制を実施します。

We apologize for the inconvenience caused by face-to-face traffic during the period, but we ask that you make further efforts to drive safely when traveling in this section.

During construction Homepage for construction, Or traffic information will be posted on websites such as DraPla so please refer to it when using the Expressway.

Also, information will be provided near the IC in front of the construction section, so please refer to it as a detour.

This work is necessary to keep the Expressway network function healthy for a long period of time, so we appreciate your understanding and cooperation.

1. 1. Construction section

　八戸自動車道　一戸IC～九戸IC間（上下線）

2. Restriction Period

　終日対面通行規制期間　平成29年8月28日（月）～平成29年12月2日（土）（97日間）

3. Traffic restrictions

When repairing the concrete floor slab of the Narayama Bridge, we will reduce the section of each two lanes of the up and down lines to one lane and consolidate it into one side line and implement face-to-face traffic control all day (step (2): attached sheet). For the first few days at the start and end of the construction period, there will be an all-day overtaking lane restriction (steps (1) and (3): attached sheet) for up and down lanes as a preparatory work for switching lanes.

• 工事規制ステップ図については別紙【PDF：341KB】をご参照ください。

Image of face-to-face traffic regulation (step (2))

Four. Construction overview

　八戸自動車道一戸IC～九戸IC間に位置する楢山橋は、開通から約31年が経過し、車両の大型化による輪荷重の繰り返しで微細なひび割れや、冬期間の凍結防止剤散布の塩分などが原因となり、コンクリート床版の劣化や鉄筋に錆が生じているため、抜本的な老朽化対策工事を実施する必要があります。

Expressway In order to keep the network function healthy for a long time, we will repair the concrete floor slab of the old Narayama Bridge. In addition, we will also perform floor slab waterproofing work, pavement repair work, folding claw tunnel reinforcement work, road maintenance work, etc. for 5 other bridges including Takino Bridge.

Construction image diagram

Construction image photograph

Five. Request when using

• The construction section will be reduced to 2 lanes on each side from 1 lane on the other side for about 9 km, and 1-lane (2 lanes up and down) facing each other will be restricted.
  Therefore, the shoulder is narrow in the one-lane section on one side, so when traveling, please observe the regulated speed and ensure the distance between you and the vehicle so that you should be careful of a rear-end collision.
  In addition, as there is a large lane shift in order to shift to one lane section on one side, please follow the local information signs etc.
• During the construction period, we will provide construction regulation information as well as call attention to construction regulation information that utilizes information boards, road signs, and simple information boards, and cautions to drive safely. Before riding, please check the above information before riding safely.
• Please check the latest traffic restrictions and traffic jam information before going out.

6．道路交通情報の入手方法について

(1) Road traffic information available before going out

• 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時間提供しています。
  盛岡局　019-639-1620
  （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時間オペレーターが対応します。）
  0570-024-024または03-5338-7524
• （公財）日本道路交通情報センター（JARTIC）の道路交通情報
  050-3369-6761（東北地方・高速情報）
  インターネット

(2) Road traffic information available during driving

• Road information board
• Highway radio (AM1620kHz)
  Highway radio sections are indicated by signs on the Expressway.
• Highway Information Terminal
  Wide-area road traffic information is reported on the monitor screens installed at SA and PA.

• Official Twitter account "NEXCO EAST (Tohoku)" ( @e_nexco_tohoku ) 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.
URL: http://www.e-nexco.co.jp/renewal/hachinohe/

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