The , signed as Route C1, is one of the routes of the
Shuto Expressway system serving the central part of the
Greater Tokyo Area
The Greater Tokyo Area is the most populous metropolitan area in the world, consisting of the Kantō region of Japan (including Tokyo Metropolis and the prefectures of Chiba, Gunma, Ibaraki, Kanagawa, Saitama, and Tochigi) as well as th ...
. The route is a complete loop around the central Tokyo
wards of
Chiyoda,
Chūō, and
Minato
Minato (港 or 湊) is Japanese for 'harbor', and may refer to:
Places
* Minato, Tokyo or Minato City, a special ward in Tokyo, Japan
* Minato-ku, Nagoya, a ward of Nagoya, Japan
* Minato-ku, Osaka, a ward of Osaka, Japan
* Minato (湊), a neig ...
, with a total length of . In addition to serving areas of central Tokyo, the Inner Circular Route also serves as the origin of the radial routes of the Shuto Expressway. A section of the expressway is built above the
Shibuya River.
History
The expressway was built between 1962 and 1967, partly in preparation for the
1964 Summer Olympics. In 2009, Tokyo private industries proposed funding a project to dismantle the
elevated expressway and put them underground.
In May 2020, the Shuto Expressway Company received approval for plans to relocate 1.8 kilometers of the expressway underground between Kandabashi and Edobashi Junctions, in the area where the
Nihonbashi
is a business district of Chūō, Tokyo, Japan which grew up around the bridge of the same name which has linked two sides of the Nihonbashi River at this site since the 17th century. The first wooden bridge was completed in 1603. The curre ...
Bridge is located. Construction will commence with the permanent closure of the Edobashi and Gofukubashi entrance and exit ramps on 10 May 2021.
Construction is expected to be completed in fiscal year 2040.
[
]
List of interchanges
List of interchanges ordered clockwise beginning with Edobashi Junction. The entire expressway is in Tokyo
Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, ...
.
References
{{coord missing, Tokyo
AH1
C1
Ring roads in Japan
Roads in Tokyo