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[C4] Between the Shiraoka-Shobu IC and Sakai-Koga IC on the Ken-O Ken-o Expressway
Notice of nighttime closure

June 14th (Mon) -18th (Fri) Every day from 20:00 to 5:00 the next morning
-Pavement repair work and repair / inspection of road structures-

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  • [C4] Notice of nighttime closure between Shiraoka-Shobu IC and Sakai-Koga IC on the Ken-O Ken-o Expressway
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PDF version 【PDF: 1.1MB】

May 24, 3rd year of Reiwa
East Nippon Expressway Co., Ltd.
Kazo Management Office

NEXCO EAST Kazo management office (Saitama Kazo) is, C4 Ken-o Expressway (hereinafter referred to as "Ken-O Road") Shiraoka Iris (Shiraoka iris) Interchange (hereinafter referred to as "IC") pavement in between - the border Furukawa IC We will close the road at night for repair 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. Closed section and date and time

(1) Closed section
Ken-O Road in around the outside Shiraoka iris IC ~ border Furukawa IC

Image of closed section 1
Image of closed section 2
  • Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.

(2) Date and time

Implementation date:
June 14th (Monday) -June 18th (Friday), 3rd year of Reiwa
From 20:00 to 5am the next day
Preparation day:
June 21st (Monday) -June 25th (Friday), 3rd year of Reiwa
From 20:00 to 5am the next day
Image of closed days
Two-dimensional code image link to NEXCO EAST (Kanto construction regulations) twitter
  • 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

Please refer to Attachment-1 [PDF: 728KB] for detours.​
The detour will take longer, so please leave plenty of time.

3. Regarding transit adjustments due to suspension of traffic

For customers who temporarily flow out of the Expressway due to traffic closure, bypass the closed section, re-inflow and transfer in the forward direction, we will implement "transfer adjustment" to adjust the toll according to the section used. I will. (See Attachment-2 [PDF: 661KB])

Transfer designated IC

Closed place Outflow designation IC Re-inflow designated IC
(1) [Tohoku Expressway] Out-bound line ⇒ [Ken-O Road O Expressway] Outer loop
(From Tokyo to Tsukuba)		 [Tohoku Expressway] Out-bound line
Hasuda SIC *, Iwatsuki IC, Urawa IC		 [Ken-O Road]
Sakai Furukawa IC, Bando IC, Joso IC
(2) [Tohoku Expressway] Out-bound line ⇒ [Ken-O Road O Expressway] Inner loop
(From Tokyo to Hachioji)		 [Tohoku Expressway] Out-bound line
Hasuda SIC *, Iwatsuki IC, Urawa IC		 [Ken-O Road] Inner route
Shiraoka Shobu IC, Okegawa Kano IC
Okegawa Kitamoto IC
(3) [Tohoku Expressway] In-bound line ⇒ [Ken-O Road O Expressway] Outer loop
(From Utsunomiya to Tsukuba)		 [Tohoku Expressway] In-bound Line
Kuki IC, Kazo IC		 [Ken-O Road]
Sakai Furukawa IC, Bando IC, Joso IC
(4) [Tohoku Expressway] In-bound line ⇒ [Ken-O Road O Expressway] Inner loop
(From Utsunomiya to Hachioji)		 [Tohoku Expressway] In-bound Line
Kuki IC, Kazo IC		 [Ken-O Road] Inner route
Shiraoka Shobu IC, Okegawa Kano IC
Okegawa Kitamoto IC
(5) [Ken-O Road O Expressway] Outer loop
(From Hachioji to Tsukuba)		 [Ken-O Road]
Shiraoka Shobu IC, Okegawa Kano IC		 [Ken-O Road]
Sakai Furukawa IC, Bando IC, Joso IC
(6) [Ken-O Road O Expressway] Outer loop ⇒ [Tohoku Expressway In-bound line
(From Hachioji to Tokyo)		 [Ken-O Road]
Shiraoka Shobu IC, Okegawa Kano IC		 [Tohoku Expressway] In-bound Line
Hasuda SIC *, Iwatsuki IC, Urawa IC
(7) [Ken-O Road O Expressway] Outer loop ⇒ [Tohoku Expressway Out-bound line
(From Hachioji to Utsunomiya)		 [Ken-O Road]
Shiraoka Shobu IC, Okegawa Kano IC		 [Tohoku Expressway] Out-bound line
Kuki IC, Kazo IC, Hanyu IC
(8) [Ken-O Road O Expressway] Inner loop
(From Tsukuba to Hachioji)		 [Ken-O Road] Inner route
Sakai Furukawa IC, Bando IC		 [Ken-O Road] Inner route
Shiraoka Shobu IC, Okegawa Kano IC
Okegawa Kitamoto IC
(9) [Ken-O Road O Expressway] Inner Loop ⇒ [Tohoku Expressway In-bound Line
(From Tsukuba to Tokyo)		 [Ken-O Road] Inner route
Sakai Furukawa IC, Bando IC		 [Tohoku Expressway] In-bound Line
Hasuda SIC *, Iwatsuki IC, Urawa IC
(10) [Ken-O Road O Expressway] Inner loop ⇒ [Tohoku Expressway Out-bound line
(From Tsukuba to Utsunomiya)		 [Ken-O Road] Inner route
Sakai Furukawa IC, Bando IC		 [Tohoku Expressway] Out-bound line
Kuki IC, Kazo IC, Hanyu IC

*・・・Smart IC (limited to ETC vehicles below ordinary vehicles)

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

Ken-O Road Between Shiraoka-Shobu IC and Sakai-Koga IC, we will repair damaged road surfaces and repair and inspect road structures.
Since it is not possible to secure a sufficient lane for vehicles under normal lane regulations, it is necessary to carry out these works 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.
We ask for your understanding and cooperation so that our customers can use Expressway safely and comfortably.

Image of pavement repair situation
Image of expansion and contraction device repair status
Image image of road structure inspection status

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
    You can get road traffic information with 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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