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[C4] Between the Kuki-Shiraoka JCT and Kozaki IC on the Ken-O Ken-o Expressway
Notice of nighttime closure

Ken-O Road switching work and pavement repair work will be carried out due to the expansion of the Ken-O Expressway to 4 lanes-

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The latest regulatory information isDraTraPlease see.

PDF version 【PDF: 282KB】

October 14, 2020
East Nippon Expressway Co., Ltd.
Saitama Construction Office
Yawahara Management Office

NEXCO EAST Saitama Construction Office (Saitama City, Saitama Prefecture) and Yawahara Management Office (Tsukubamirai City, Ibaraki Prefecture) are located on the C4 Ken-o Expressway (hereinafter referred to as "Ken-O Ken-O Road") Kuki Shiraoka Junction ( hereinafter referred to as "JCT") and Kanzaki Interchange (hereinafter referred to as "IC"), between Kuki Shiraoka JCT and Satte IC, which are scheduled to open in 2022, and between Sakai Koga IC and Bando IC, which will be expanded to four lanes. The road will be closed at night for replacement work and pavement repair work.
In addition, please be aware that the lane you are driving will change after the road closure between Kuki-Shiraoka JCT and Bando IC is lifted (see [Attachment-1] [PDF: 267KB]).
We apologize for the inconvenience, but we ask for your understanding and cooperation so that you have plenty of time when you go out.

1. Closed section and date and time

  1. Closed section
    Ken-O Road-O Expressway Kuki Shiraoka JCT - Kanzaki IC
    Section I:
    Kuki Shiraoka JCT - Bando IC
    Section II:
    Joso IC - Amihigashi IC
    Section III:
    Amihigashi IC - Kanzaki IC
    2. Image image of closed section
    • Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.
  2. Date and time
    Section I
    Implementation date:
    November 14th (Mon) to 15th (Tue), 2020
    Every night from 20:00 to 5:00 the next morning
    Preparation day:
    November 16th (Wednesday) to 18th (Friday), 2022
    Every night from 20:00 to 5:00 the next morning
    Section II
    Implementation date:
    November 21 (Mon) to 28 (Mon), 2022
    [Excluding weekends and holidays] Every day from 20:00 to 5:00 the next morning
    Preparation day:
    November 29 (Tue) to December 2 (Fri), 2022
    Every night from 20:00 to 5:00 the next morning
    Section III
    Implementation date:
    December 5th (Mon) to 9th (Fri), 2022
    Every night from 20:00 to 5:00 the next morning
    Preparation day:
    December 12 (Monday) to 15 (Thursday), 2022
    Every night from 20:00 to 5:00 the next morning
Image of date and time
Two-dimensional code image link to NEXCO EAST (Kanto construction regulations) twitter (external link)
  • The rest facilities in the closed section of section III will be closed as follows.
    Ken-O Road O Expressway Edosaki Parking Area (hereinafter "PA")
    Every night from 19:00 to 5:00 the next morning
  • In stormy weather, it will be postponed to the spare day.
  • Construction decision will be announced on Twitter, etc. around 17:00 in the evening.

2. Detour

For detours, please refer to the attached sheet below for the closed sections from I to III.
　Section I... [Attachment-2 (I)] [PDF: 398KB]
　Section II... [Attachment-2 (II)] [PDF: 964KB]
　Section Ⅲ ・・・【Attachment-2 (Ⅲ)】【PDF: 364KB】
Due to the detour, the required time will be longer, so please leave with plenty of time.

3. Regarding transit adjustments due to suspension of traffic

For customers who temporarily flow out of the Expressway due to road closures, bypass the road closure section, re-enter and transfer in the forward direction, we will implement "connection adjustment" to adjust the toll according to the section used. increase.
(Refer to [Attachment-3] [PDF: 611KB])

Transfer designated IC

《Section I: Kuki Shiraoka JCT - Bando IC》
*November 14th (Monday) to 15th (Tuesday)

Closed place Outflow designation IC Re-inflow designated IC
① [Tohoku Expressway] Out-bound line ⇒ [Ken-O Road] Circumference
(From Tokyo to Tsukuba)		 [Tohoku Expressway] Out-bound line (*1)
Hasuda Smart IC (*2),
Iwatsuki IC, Urawa IC		 [Ken-O Ken-O Road] Outer
Bando IC, Joso IC, Tsukuba Chuo IC
②【Tohoku Expressway】In-bound Line ⇒ 【Ken-O Road】Circular
(From Utsunomiya to Tsukuba)		 [Tohoku Expressway] In-bound Line
Kuki IC, Kazo IC
③ [Ken-O Road] Outer route
(From Hachioji to Tsukuba)		 [Ken-O Road]
Shiraoka Shobu IC, Okegawa Kano IC
④ [Ken-O Road] Inner route
(From Tsukuba to Hachioji)		 [Ken-o Ken-O Road] Inner loop
Bando IC, Joso IC		 [Ken-o Ken-O Road] Inner loop
Shiraoka-Shobu IC, Okegawa-Kano IC, Okegawa-Kitamoto IC
⑤ [Ken-O Road] Inner route ⇒ [Tohoku Expressway] In-bound line
(From Tsukuba to Tokyo)		 【Tohoku Expressway】In-bound Line
Renda Smart IC (*2), Iwatsuki IC, Urawa IC
⑥ [Ken-O Road] Inner route ⇒ [Tohoku Expressway] Out-bound line
(From Tsukuba area to Utsunomiya area)		 [Tohoku Expressway] Out-bound line
Kuki IC, Kazo IC, Hanyu IC
  1. Tohoku Expressway ・ ・ ・ Tohoku Expressway
  2. Hasuda Smart IC In-bound line is limited to ETC cars of all models (12m or less), and Out-bound line is limited to ETC cars of ordinary cars or less.

    3. 《Section II: Joso IC - Ami Higashi IC》
    *November 21st (Monday) to 28th (Monday) [excluding weekends and holidays]

    Closed place Outflow designation IC Re-inflow designated IC
    [Ken-O Road] (Inner route)
    Amihigashi IC ⇒ Joso IC    		 [Ken-O Road] (Inner loop)
    Ami-higashi IC, Inashiki IC    		 [Ken-O Road] (Inner loop)
    Joso IC, Bando IC, Sakai Koga IC
    [Joban Expressway] (*3)
    (In-In-bound line) Yatabe IC, Yawahara IC, Kashiwa IC
    (Out-bound) Sakura Tsuchiura IC, Tsuchiura Kita IC, Chiyoda Ishioka IC
    [Joban Expressway] (*3)
    (In-In-bound line) Sakura Tsuchiura IC, Tsuchiura Kita IC
    (Out-bound line) Yatabe IC, Yawahara IC    		 [Ken-O Road] (Inner loop)
    Joso IC, Bando IC, Sakai-Koga IC
    [Ken-O Road] (outer route)
    Joso IC ⇒ Ami East IC    		 [Ken-O Road] (Outer loop)
    Joso IC, Bando IC    		 [Ken-O Road] (Outer loop)
    Ami-higashi IC, Inashiki IC, Inashiki-higashi IC
    [Joban Expressway]
    (In-bound line) Yatabe IC, Yawara IC, Kashiwa IC
    (Out-bound line) Sakura Tsuchiura IC, Tsuchiura Kita IC, Chiyoda Ishioka IC
    [Joban Expressway]
    (In-bound line) Sakura Tsuchiura IC, Tsuchiura Kita IC
    (Out-bound line) Yatabe IC, Yawahara IC    		 [Ken-O Road] (Outer loop)
    Ami-higashi IC, Inashiki IC, Inashiki-higashi IC
  3. Joban Expressway ・ ・ ・ Joban Expressway

    4. 《Section III: Amihigashi IC - Kanzaki IC》
    *December 5th (Mon) to 9th (Fri)

    Closed place Outflow designation IC Re-inflow designated IC
    [Ken-O Road] (Inner loop)
    Kozaki IC ⇒ Ami Higashi IC    		 [Ken-O Road] (Inner loop)
    Kozaki IC, Shimofusa IC    		 [Ken-O Road] (Inner loop)
    Ami Higashi IC, Ushiku Ami IC, Tsukuba Ushiku IC
    [Ken-O Road] (Outer loop)
    Ami-higashi IC ⇒ Kozaki IC    		 [Ken-O Road] (Outer loop)
    Ami Higashi IC, Ushiku Ami IC    		 [Ken-O Road] (Outer)
    Kanzaki IC, Shimousa IC
    [East Kanto Expressway] (*4)
    (In-In-bound line) Narita IC
    (Out-bound line) Daiei IC
  4. Higashi Kanto Expressway ・ ・ ・ Higashi-Kanto Expressway

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 Kuki-Shiraoka JCT ~ Kanzaki IC, Ken-O Road Lane switching work (temporary protective fence removal work, temporary road surface marking installation work, etc.) and pavement repair work will be carried out in connection with the four-lane conversion. In order to minimize inconvenience to customers, we will close roads at night on weekdays when traffic volume is low, and carry out construction work intensively and efficiently. We ask for your understanding and cooperation in order to use the Expressway safely and comfortably.

Photograph of the temporary protection fence removal situation Caption image of the removal of the temporary protective fence
Photo of temporary road marking installation Image of the caption of the temporary road marking installation situation
Photograph of pavement repair work work situation Caption image of pavement repair work 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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