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[C4] Between Bando IC and Joso IC on the Ken-O Ken-o Expressway
Notice of nighttime closure

January 18th (Monday) to 22nd (Friday), 3rd year of Reiwa, from 20:00 to 5:00 the next morning
-We will install wire ropes and repair and inspect road structures-

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  • [C4] Notice of nighttime closure between Bando IC and Joso IC on the Ken-O Ken-o Expressway
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The latest regulatory information isDraTraPlease see.

December 18, 2020
East Nippon Expressway Co., Ltd.
Kazo Management Office

NEXCO EAST Kazo Management Office (Kazo City, Saitama Prefecture) is located on the C4 Ken-o Expressway (hereinafter "Ken-O Road Expressway") Bando Interchange (hereinafter "IC") -Joso Interchange (hereinafter "IC"). ) Will be closed at night for wire rope installation work and repair / inspection of road structures.
We apologize for the inconvenience caused to our customers, but we ask for your understanding and cooperation so that you will have time to spare when you go out.

1. 1. Road closure and date and time

(1) closed to traffic section: Ken-O Road within the outer loop Bando IC ~ Joso IC

Closed to traffic section: Ken-O Road within the outer loop Bando IC ~ Joso IC image of
  • Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.

(2) Date and time

Implementation date: January 18th (Monday) to 22nd (Friday), 3rd year of Reiwa
From 20:00 to 5am the next day
Preliminary day: January 25th (Monday) to 29th (Friday), 3rd year of Reiwa
From 20:00 to 5am the next day
Image of date and time
Image of QR code
  • In stormy weather, it will be postponed to the spare day.
  • The construction implementation decision will be made on Twitter etc. around 17:00 on the evening of the day.

2. Detour

For detours, please use Prefectural Road 20, Prefectural Road 24, and National Route 294 as shown by the orange arrow.​
If you detour between Bando IC and Joso IC as shown in the figure below, it will take about 21 minutes (usually about 8 minutes).
The detour will take longer, so please leave plenty of time.

Image of detour

3. Regarding transit adjustments due to suspension of traffic

For passengers who temporarily flow out of the Expressway due to suspension of traffic, bypass the suspension of traffic, re-enter, and transfer in the forward direction, we carry out "transit adjustment" to adjust the toll according to the segment used. I will.

Transfer designated IC

Closed place Outflow designation IC Re-inflow designated IC
(1) [Ken-O Road] inward turning Joso IC⇒ Bando IC
(From Tsukuba to Hachioji)		 [Ken-O Road] Inner loop
Joso IC, Tsukuba Chuo IC		 [Ken-O Road O Expressway] Inner loop
Bando IC, Sakai-Koga IC, Goka IC
(2) [Ken-O Road] around the outside Bando IC⇒ Joso IC
(From Hachioji to Tsukuba)		 [Ken-O Road O Expressway] Outer
Bando IC, Sakai-Koga IC		 [Ken-O Road O Expressway] Outer
Joso IC, Tsukuba Chuo IC
Tsukuba Ushihisa IC
[Joban Expressway] In-bound line
Yatabe IC
[Joban Expressway] Out-bound line
Sakura Tsuchiura IC
  1. [Ken-O Road] inward turning Joso IC⇒ Bando IC
    [Ken-O Road] inward turning Joso IC⇒ Bando IC image of
  2. [Ken-O Road] around the outside Bando IC⇒ Joso IC
    [Ken-O Road] around the outside Bando IC⇒ Joso IC image of

How to use transit adjustment

<< ETC customers >>

  • Customers using ETC are requested to run the outflow designated IC wirelessly and the re-inflow designated IC wirelessly. (No transit certificate will be issued for ETC vehicles)
  • ETC time zone discount will be applied, considering the transited journey as one.
    Toll charges are adjusted at the time of billing, so they may differ from those displayed at the toll gate.
  • Insert the same ETC card for all journeys and pass through the ETC lane at the tollgate.

<< Customers for cash, etc. >>

  • Customers who pay by cash, etc. should receive the "passage certificate" at the outflow designated IC, and then get the "passport" at the re-inflow designated IC, and then make the "transfer" at the toll booth that pays the fare first. Please give us your "certificate" and "passport".

《Common to customers such as ETC and cash》

  • If the suspension of traffic is released after the outflow designated IC is released, the fare will be adjusted even if it is re-introduced from the IC (including the outflow designated IC) in the closed road section in the forward direction.

Four. Construction overview

Wire rope (cable type guard fence) installation work will be carried out between the Bando IC and Joso IC on the Ken-O Road
This section is a two-lane section (one lane on each side), and it is difficult to secure a lane for vehicles when carrying out construction work, so it is necessary to carry out work by closing the road. Therefore, in order to avoid inconvenience to customers as much as possible, we will close traffic on weekday nights when traffic is light and carry out construction intensively and efficiently.
This work is necessary for you to use the Expressway safely and comfortably, so we ask for your understanding and cooperation.

Photo 1 of the image of a new protective fence for the median strip
Photo 2 of the image of a new protective fence for the median strip

Image of new image (caption) of protective fence for median strip

Image of construction image Image of construction image (caption)

Five. 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.
  • A banner will be posted on the overpass on the Expressway.

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

(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
    Road traffic information can be obtained from VICS-compatible car navigation and other on-board devices.
  • Information is also distributed on the official Twitter account.
    " NEXCO EAST (Kanto)" (@e_nexco_kanto) Real-time traffic information
    " NEXCO EAST (Kanto construction regulations)" (@e_nexco_kanto_k) Judgment regarding implementation of construction regulations
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