[C4] Ken-o Expressway Matsuo Yokoshiba IC to Kisarazu Higashi IC and
Notice of nighttime road closure between Matsuo Yokoshiba IC and Yokoshibahikari IC on the Choshi Link Road
May 12th (Mon) to May 21st (Wed) from 8pm to 5am each day
~We will carry out pavement repair work, structure inspections, etc.~
- Corporate Top
- Press Room
- Press Release Kanto Regional Head Office
- [C4] Notice of nighttime road closures on Ken-o Expressway between Matsuo Yokoshiba IC and Kisarazu Higashi IC, and on the Choshi Intercity Expressway between Matsuo Yokoshiba IC and Yokoshibahikari IC
The latest regulatory information is DraTra Please see.
April 11, 2025
East Nippon Expressway Co., Ltd.
Ichihara Management Office
Tokyo Wan Aqua-Line Expressway Management Office
NEXCO EAST Ichihara Management Office (Ichihara City, Chiba Prefecture) and the Tokyo Wan Aqua-Line Expressway Management Office (Kisarazu City, Chiba Prefecture) will be implementing a night-time road closure on the C4 Ken-o Expressway (hereinafter referred to as the "Ken-O Road") from Matsuo Yokoshiba Interchange (hereinafter referred to as the "IC") to Kisarazu Higashi IC to carry out pavement repair work, structure inspections, etc.
In addition, the Choshi Link Road (managed by the Chiba Prefectural Road Public Corporation), which connects directly to the Ken-Ken-O Road, will also be closed (entry prohibited) because customers who entered from the Yokoshiba Hikari Interchange will not be able to exit onto the general road from the Matsuo Yokoshiba Interchange.
We apologize for any inconvenience this may cause, and we ask for your understanding and cooperation in allowing yourself plenty of time when heading out.
1. Closed section and date and time
- Closed section:Section I:Ken-O Road and Outer Loop Matsuo Yokoshiba IC to Togane IC Junction (hereinafter "JCT")
Choshi Link Road, both inbound and outbound lanes, Matsuo Yokoshiba IC to Yokoshiba Hikari ICSection II:Ken-O Road and Outer Loop Togane IC/JCT to Mobara Chonan ICSection III:Ken-O Road Inner and Outer Loop Mobara Chonan IC to Ichihara Tsurumai ICSection IV:Ken-O Road-O Expressway Inner and Outer Route Ichihara Tsurumai IC - Kisarazu East IC - Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.
- Date and time
| Section I | Date: May 12th (Mon) to 21st (Wed), 2025 Backup days: Thursday, May 22, 2025 to Tuesday, June 3, 2025 |
[Excluding Fridays, Saturdays, and Sundays] 8pm to 5am each day |
| Section II | Date: May 12th (Mon) to 19th (Mon), 2025 Backup dates: May 20th (Tue) - 27th (Tue), 2025 |
|
| Section III | Date: May 12th (Mon) to 21st (Wed), 2025 Backup days: Thursday, May 22, 2025 to Tuesday, June 3, 2025 |
|
| Section IV | Date: May 12th (Mon) to 19th (Mon), 2025 Backup dates: May 20th (Tue) - 27th (Tue), 2025 |
- The rest facilities in the closed section will be closed as follows.
Ken-O Ken-O Road Takatakiko Parking Area Every night from 19:30 to 5:00 the next morning - In stormy weather, it will be postponed to the spare day.
- The decision to proceed with construction will be announced on X (formerly Twitter) etc. around 5:00 pm on the same day.
2. Detour
迂回にあたっては、【別紙-1】【PDF：412KB】および【別紙-2】【PDF：547KB】をご参照ください。
迂回により所要時間が長くなりますので、お時間にゆとりをもってお出かけください。
3. Regarding transit adjustments due to suspension of traffic
通行止めにより高速道路を一旦流出し、通行止め区間を迂回して、再流入して順方向に乗り継がれるお客さまには、ご利用区間に応じて通行料金を調整する「乗継調整」を実施します。
（【別紙-3】【PDF：742KB】参照）
Transfer IC
- 大網白里スマートIC、茂原長柄スマートIC、富津中央IC、姉崎袖ケ浦ICは、ETC車限定になります。
| Closed section | Outflow designation IC | Re-inflow IC | |
|---|---|---|---|
| Section I + Section II + Section III + Section IV |
[Ken-O Road] (Inner loop) Kisarazu Higashi IC ⇒ Matsuo Yokoshiba IC (From Kawasaki to Choshi) |
【圏央道】 （内回り）木更津東IC 【館山自動車道】 （上り線）君津IC （下り線）木更津北IC、木更津南IC 【東京湾アクアライン連絡道】 （下り線）袖ケ浦IC |
【千葉東金道路】 （上り線）東金IC、山田IC、中野IC、高田IC |
| [Ken-O Road] (Outside) Matsuo Yokoshiba IC ⇒ Kisarazu Higashi IC (From Choshi to Kawasaki) |
[Chiba-Togane Road] (Out-bound line) Nakano IC, Yamada IC, Togane IC |
【圏央道】 （外回り）木更津東IC 【館山自動車道】 （上り線）姉崎袖ケ浦IC、木更津北IC、木更津南IC （下り線）君津IC、富津中央IC 【東京湾アクアライン連絡道】 （上り線）袖ケ浦IC |
|
| Section I + Section Ⅲ |
【圏央道】（内回り） 東金IC・JCT⇒松尾横芝IC 市原鶴舞IC⇒茂原長南IC （川崎方面から銚子方面） |
【圏央道】 （内回り）木更津東IC、市原鶴舞IC |
【圏央道】 （内回り）茂原長南IC、茂原長柄スマートIC、 茂原北IC、大網白里スマートIC 【千葉東金道路】 （上り線）東金IC、山田IC |
| 【圏央道】（外回り） 松尾横芝IC⇒東金IC・JCT 茂原長南IC⇒市原鶴舞IC （銚子方面から川崎方面） |
【圏央道】 （外回り）茂原北IC、 茂原長柄スマートIC、 茂原長南IC |
【圏央道】 （外回り）市原鶴舞IC、木更津東IC 【館山自動車道】 （上り線）木更津北IC、木更津南IC （下り線）君津IC 【東京湾アクアライン連絡道】 （上り線）袖ケ浦IC |
|
How to use transit adjustment
ETC customers
- For customers using ETC, please drive wirelessly at designated outflow ICs, and also wirelessly drive at re-inflow ICs. (Transfer certificates are not 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 such as cash
- Customers paying with cash, etc. should receive a "transfer certificate" at the outflow designated IC, then take a "transit ticket" at the re-inflow IC, and then take the "transition certificate" at the toll booth where they pay the toll for the first time. Please hand over your ``book'' and ``traffic ticket.''
Common to ETC and cash customers
- 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
A night-time road closure will be implemented on Ken-O Road between Matsuo Yokoshiba IC and Kisarazu Higashi IC to carry out repair work on damaged pavement and inspection of structures.
The section where this work will be carried out has only one lane in each direction, and since the work cannot be carried out under normal lane restrictions, in order to minimize inconvenience to customers, we will close the road at night on weekdays when traffic volume is low, and carry out the work in a concentrated and efficient manner. This work is necessary to ensure that customers can use Expressway safely and comfortably, so we ask for your understanding and cooperation.
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
- 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[Mobile] http://m.drivetraffic.jp/Construction regulation information
- 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
千葉情報 050-3369-6612
【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 official X (formerly Twitter) and LINE accounts.
- [X (formerly Twitter)]
"NEXCO EAST (Kanto)" ( @e_nexco_kanto )Real-time traffic information"NEXCO EAST (Kanto construction regulations)" ( @e_nexco_kanto_k )Judgment of implementation of construction regulations - [LINE]
"NEXCO EAST" (@e-nexco)Road closures and weather information
- [X (formerly Twitter)]
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