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NEXCO EAST　Misato The Management Office (Misato City, Saitama Prefecture) will be closing the ramps at the Kawaguchi Junction (hereinafter referred to as "JCT") from the C3 Gaikan Expressway (hereinafter referred to as "outer ring road") outbound to the E4 Tohoku Expressway (hereinafter referred to as "Tohoku Expressway") Out-bound line and the [S1] Metropolitan Expressway Kawaguchi Line In-bound line to replace a damaged sound insulation wall.
We apologize for any inconvenience this may cause and ask for your understanding and cooperation in allowing extra time for your trip.

1. 1. Closing location and date and time

1. Closure location:
   Inflow ramp from outer ring road to Tohoku Expressway Out-bound line (from Oizumi direction to Utsunomiya direction) and
   Inflow ramp from outer ring road to Metropolitan Expressway Kawaguchi Line (from Oizumi direction to Ginza direction)



2. Date and time
   Implementation date:

   May 8 (Mon) to 24 (Wed), 2023

   [Excluding Fridays, Saturdays and Sundays] Every day from 21:00 to 5:00 the next morning

   Preparation day:

   May 25th (Thursday) to June 6th (Tuesday), 5th year of Reiwa

   [Excluding Fridays, Saturdays and Sundays] Every day from 21:00 to 5:00 the next morning

2. Detour

• [1] When traveling from the outer ring road to Tohoku Expressway Out-bound line (from the direction of Oizumi to the direction of Utsunomiya)
  • As indicated by the blue arrow, exit Kawaguchi Nishi IC, take Route 298 toward Misato, and take Route 122 to Urawa IC.
  • If you detour between Kawaguchi Nishi IC ⇒ Urawa IC, the required time is expected to take about 13 minutes (usually about 7 minutes).
• [2] When passing the Metropolitan Expressway Kawaguchi Line (from the direction of Oizumi to the direction of Ginza) from the outer ring of the outer ring road
  • As indicated by the pink arrow, exit Kawaguchi-nishi IC, take National Route 298 toward Misato, then take National Route 122 and Prefectural Route 239, and use the Arai-juku entrance of the Metropolitan Expressway Kawaguchi Line.
  • If you detour between Kawaguchi Nishi IC ⇒ Araijuku entrance, the required time is expected to take about 8 minutes (usually about 5 minutes).

Detours will increase the time required, so please take time to go out.

3. Construction overview

Since the sound insulation wall has been damaged (chalked) at the Kawaguchi JCT ramp heading from the outer circumference of the Gaikan Road to the Tohoku ExpresswayOut-bound Line and the Metropolitan Takakawaguchi Line, we will carry out sound insulation wall replacement work.
The section where this work is carried out is one lane, and since it is not possible to carry out construction with normal lane regulations, it is necessary to close the ramp and work.
Therefore, in order to cause as little inconvenience to customers as possible, we will close the lamps on weeknights when there is little traffic and carry out construction intensively and efficiently. This construction is necessary for safe and comfortable use of the Expressway, so we ask for your understanding and cooperation.

Four. How to obtain traffic information

(1) Guidance by distribution / posting

• Notice signs, posters and leaflets will be posted at toll booths and rest facilities nearby.

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

• NEXCO東日本お客さまセンター（24時間オペレーターが対応）
  ナビダイヤル：0570-024-024
  または：03-5308-2424
• NEXCO EAST Expressway Traffic Information Site "DraTra"
  Real-time information

  [PC] https://www.drivetraffic.jp/

  [Mobile] http://m.drivetraffic.jp/

  Construction regulation information

  [PC] https://www.drivetraffic.jp/construction-regulation
• 日本道路交通情報センター（JARTIC）　道路交通情報
  全国共通ダイヤル　050-3369-6666
  （携帯電話短縮ダイヤル　#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
  埼玉情報　050-3369-6611
  【PC】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.
• Highway Information Terminal
  We will inform you of road information in an easy-to-understand manner by the monitor screens installed in SA / PA.
• VICS
  You can get road traffic information with VICS-compatible car navigation and other on-board devices.

• Information is also distributed on the official accounts of Twitter and LINE.
  [Twitter]
  "NEXCO EAST (Kanto)" (@e_nexco_kanto) real-time traffic information
  "NEXCO EAST (Kanto Construction Regulations)" (@e_nexco_kanto_k) Decision to implement construction regulations
  [LINE]
  "NEXCO EAST (Kanto)" (@e-nexco) Road closures and weather information