Regarding measures taken in response to the temporary suspension of the Tokyo Outer Ring Road Project website.
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- Important notice regarding use
- Regarding measures taken in response to the temporary suspension of the Tokyo Outer Ring Road Project website.
令和8年9月4日
国土交通省 関東地方整備局
東京外かく環状国道事務所
東日本高速道路株式会社 関東支社
東京外環工事事務所
中日本高速道路株式会社 東京支社
東京工事事務所
We have recently confirmed that there is a suspected case of unauthorized access by a third party to the Tokyo Outer Ring Road Project website.
We have temporarily suspended access to the website in question and are investigating the cause. At this time, we have not confirmed any leakage of personal information.
Until the Tokyo Outer Ring Road Project website is reopened, announcements and other information will be posted on the Tokyo Outer Ring Road Office website (https://www.ktr.mlit.go.jp/gaikan/project/temp_list.pdf).
We sincerely apologize for the worry and inconvenience caused to all our users.
For inquiries regarding the Tokyo Outer Ring Road project, please contact the following:
Contact Information
Inquiries by phone
- 国土交通省 関東地方整備局 東京外かく環状国道事務所
TEL：0120-34-1491（フリーダイヤル）
受付時間：平日 9:15～12:00、13:00～18:00 - East Nippon Expressway Co., Ltd. Kanto Regional Head Office Tokyo Outer Ring Road Construction Office
TEL: 0120-861-305 (Toll-free)
Reception hours: Weekdays 9:00 AM - 5:30 PM - Central Nippon Expressway Co., Ltd. Tokyo Regional Head Office Tokyo Construction Office
TEL: 0120-016-285 (Toll-free)
Reception hours: Weekdays 9:00 AM - 5:30 PM
Inquiries via email
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