• PDF version [PDF: 514KB]

NEXCO EAST Tokyo Wan Aqua-Line Expressway Management Office and Kisarazu Construction Office (Kisarazu City, Chiba Prefecture), 4 lane construction work between Tateyama Expressway Kimitsu Interchange (IC) and Futtsu-Tateyama Road Sawaminami Toyama IC (safety measures against falling rocks) Installation of fences, etc., pavement repair work, and inspection and cleaning work of tunnel equipment.

As a result, there will be night closures in the same section from Monday, June 29 to Friday, July 3 from 21:00 every night until 5:00 the next morning.

We apologize for the inconvenience, but we kindly ask for your understanding and cooperation so that you may have plenty of time when you go out.

1 closed section and date and time

1. An up-and-down line between the Tateyama Expressway Kimitsu IC and Futtsu Takeoka IC (extension 16.7km)
   From Monday, June 29, 2015 to Friday, July 3
   From 21:00 pm to 5:00 pm the next morning (8 hours of closed nights per day) Total 5 nights
   (Preparatory days: Monday, July 6th to Friday, July 10th)
2. Futtsu-Tateyama Road Futtsu Takeoka IC-Konami Toyama IC vertical line (extension 11.0km)
   From Monday, June 29, 2015 to Wednesday, July 1
   From 21:00 pm to 5:00 am the next morning (8 hours of closed nights per day) Total 3 nights
   (Preparatory days: Thursday, July 2 to Monday, July 6, except Saturday and Sunday)
   *You can use the Tateyama Expressway Kimitsu Parking Area until 20:30.

• In case of stormy weather, construction will be postponed.
• In case of stormy weather, the decision to stop at night will be made at 16:00 pm on the day of the implementation.
• For the latest information, please check [4. (2) Road traffic information available before going out] such as NEXCO EAST Road information site "DraTra".

　当日の実施判断など、お出かけ前の情報入手につきましては、NEXCO東日本 お客さまセンター（TEL：0570-024-024）、日本道路交通情報センター（TEL：050-3369-6666）などからご確認いただけます。

2 Detour

When the road between the Tateyama Expressway Kimitsu IC and Futtsu-Tateyama Road Konan Toyama IC is closed, the detour is Route 127. The time between the Kimitsu IC and Kyonan Toyama IC (about 28km) is usually about 25 minutes, but if you use the detour route, the time will be about 50 minutes, so please take time to go. Attachment [PDF:173KB]

At Toyooka, Tomiura-cho, Minamiboso-shi, which is located on National Highway No. 127, we have night traffic closures from June 27 to July 11, so please use the Futtsu-Tateyama Road from Konan Toyama IC to Tomiura IC. Please visit us or use the detour from the link below (Chiba National Highway Office homepage).

Notice of traffic regulation on National Highway No. 127 Kubo/Sakashita Tunnel [PDF: 486KB]

3 Construction overview

[Construction of 4 lanes on Tateyama Road]

As a safety measure for the service line that accompanies the 4-lane construction of the Tateyama Road (Kimitsu-Futtsu Takeoka), a rock fall protection fence (870m) during cutting work and a temporary guardrail to separate the service line from the construction site in advance We will perform work to install a blindfold net (2,000m).

Rockfall protection fence and temporary guardrail installation work

We will install rockfall protection fences and temporary guardrails as a safety measure for the service lines that accompany 4-lane construction.

[Tateyama Road/Futtsu Tateyama Road Maintenance Repair Work]

Traffic safety measures such as repair of pavement damage points by traveling vehicles and prevention of median breakthrough accidents, tunnels continuous in the section (number of tunnels: 16 locations, extension: about 9.2 km, section extension ratio: about 35%) In order to maintain a good condition at all times, such as inspection, cleaning, and repair of emergency equipment and lighting equipment, we carry out improvement work and repair work.

Road maintenance work

We will improve the runnability and safety by improving the damaged parts on the pavement and improving the road markings (lane marks).

Facility maintenance work

We will inspect and clean the tunnel lighting and emergency equipment to keep them in good condition at all times.

In carrying out these works, in order to minimize the impact on our customers, we will close the roads during the nights on weekdays when traffic is light, and will carry out the work intensively and efficiently. We ask for your understanding and cooperation so that our customers can use the Expressway safely and comfortably.

4 How to obtain traffic information

(1) Public information regarding suspension of traffic

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

(3) Traffic information available while using the Expressway

• * Twitter's official account "NEXCO EAST (Kanto)" (@e_nexco_kanto ) Also delivers information.

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