Inner Circular Route
{{Use dmy dates|date=July 2020}}
{{short description|Expressway in the Tokyo area}}
{{infobox road|country=JPN
| name = Shuto Expressway Inner Circular Route
首都高速都心環状線
| marker_image = 80px
| map ={{Highway system OSM map
| highway_system_qid = Q1369525
| frame-lat = 35.671
| frame-long = 139.757
| frame-width = 300
| frame-height = 300
| zoom = 12
| length =
| plain = yes
| stroke-width = 2
}}
| map_custom = yes
| map_notes=The Inner Circular Route highlighted in red
|maint= Metropolitan Expressway Company Limited
| length_mi =
| length_km = 14.8
| length_round =
| length_ref =
| established = 1962
| allocation =
| beltway_city=Tokyo
| junction ={{plainlist|1=24px Ueno Route
24px Mukojima Route
Tokyo Expressway
24px Yaesu Route
24px Haneda Route
24px Meguro Route
24px Shibuya Route
24px Shinjuku Route
24px Ikebukuro Route}}
|ahn={{Jct|country=JPN|AH|1}}
}}
The {{Nihongo|Inner Circular Route|都心環状線|Toshin Kanjō-sen}}, signed as Route C1, is one of the routes of the Shuto Expressway system serving the central part of the Greater Tokyo Area. The route is a complete loop around the central Tokyo wards of Chiyoda, Chūō, and Minato, with a total length of {{Convert|14.8|km|mi|sp=us}}. 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.{{cite news|author=Keisuke Okada|url=https://www.japantimes.co.jp/news/2012/03/17/national/push-to-replace-tokyos-aging-expressways-with-tunnel-routes-revived/|title=Push to replace Tokyo's aging expressways with tunnel routes revived|page=3|newspaper=The Japan Times|date=17 March 2012|accessdate=20 July 2020}}
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 surrounding Nihonbashi Bridge as part of larger project to redevelop the financial district.{{cite press release|title=首都高速道路日本橋区間の地下化事業の都市計画事業認可について|trans-title=The Gofukubashi and Edobashi ramps on the downtown loop line will be abolished at midnight on 10 May 2021 (Monday).|url=https://www.shutoko.co.jp/updates/2020/data/05/21_nihonbashi/|publisher=Shuto Expressway|date=21 May 2020|access-date=16 March 2021|language=ja}} Construction commenced with the permanent closure of the Edobashi and Gofukubashi entrance and exit ramps on 10 May 2021.{{cite press release|title=都心環状線 呉服橋出入口・江戸橋出入口を2021年5月10日（月）午前0時に廃止します|trans-title=The Gofukubashi and Edobashi ramps on the downtown loop line will be abolished at midnight on 10 May 2021 (Monday).|url=https://www.shutoko.co.jp/company/press/2020/data/01/26_nihonbashi/|publisher=Shuto Expressway|date=26 January 2021|access-date=16 March 2021|language=ja}}{{cite news|url=https://news.yahoo.co.jp/articles/dac7a5bfb0a503a95d4797ef42e7a5815a67c09a|title=首都高、2021年5月10日に呉服橋・江戸橋出入口を廃止|date=8 February 2021|website=news.yahoo.co.jp|publisher=Yahoo! News (Japan)|access-date=16 March 2021|language=ja|archive-date=8 February 2021|archive-url=https://web.archive.org/web/20210208055346/https://news.yahoo.co.jp/articles/dac7a5bfb0a503a95d4797ef42e7a5815a67c09a|url-status=dead}} Construction on the replacement tunnel is expected to be completed in 2035, making way for the removal of the bridge planned to be completed in 2040.{{cite news|last=Yurumazu|first=Emin|title=香港に代わる金融ハブに東京が10年内になる根拠|trans-title=Reasons why Tokyo will replace Hong Kong as the financial hub within the next decade|
language=ja|url=https://toyokeizai.net/articles/-/466123|publisher=Toyo Keizai|date=4 November 2021|accessdate=12 December 2024}}
List of interchanges
List of interchanges ordered clockwise beginning with Edobashi Junction. The entire expressway is in Tokyo.
{{JPNinttop|exit|name|nopref=yes|length_ref={{google maps |title=Inner Circular Route|url=https://www.google.com/maps/dir/35.6844274,139.777365/35.6557332,139.7379576/35.6844391,139.7773471/@35.6816589,139.7548693,14.25z/data=!4m2!4m1!3e0|accessdate=23 July 2020}}}}
{{JPNint|exit|name
|location_special=Chūō
|lspan=8
|km=0.0
|exit=—
|type=concur
|name=Edobashi
|road=File:Shuto Urban Expwy Sign 1-Ueno.svg Ueno Route north – Ueno
{{jct|country=MEX|extra=airport}}File:Shuto Urban Expwy Sign B.svgFile:Shuto Urban Expwy Sign 0009.svgFile:JP Expressway E4.svg{{hair space}}File:JP Expressway E14.svgFile:Shuto Urban Expwy Sign 6-Mukojima.svg Mukojima Route north – Narita, Bayshore Route, Fukagawa Route, Tōhoku Expressway, Keiyō Road
|notes=Clockwise entrance, counterclockwise exit; distance posts reset to zero, eastern terminus of AH1
}}
{{JPNint|exit|name
|km=0.8
|exit=11
|type=incomplete
|name=Takarachō
|road=Yaesu-dōri
|notes=Clockwise exit, counterclockwise entrance
}}
{{JPNint|exit|name
|km=1.0
|exit=—
|type=incomplete
|name=Kyōbashi
|road=Spur route to Tokyo Expressway
|notes=Clockwise exit, counterclockwise entrance
}}
{{JPNint|exit|name
|km=1.6
|exit=12
|type=incomplete
|name=Kyōbashi
|road=Kajibashi-dōri – Kyōbashi, Eitaibashi
|notes=Clockwise entrance, counterclockwise exit
}}
{{JPNint|exit|name
|km=1.7
|km2=1.9
|exit=13/14
|type=incomplete
|name=Shintomichō
|road=Tokyo Metropolitan Route 50 (Shin-Ōhashi-dōri) – Shin-Ōhashi, Tsukuda, Shiodome
|notes=Exit only
}}
{{JPNint|exit|name
|km=2.0
|km2=2.5
|exit=15/16
|name=Ginza
|road=Ginchū-dōri
|notes=
}}
{{JPNint|exit|name
|km=3.2
|exit=18
|type=incomplete
|name=Shiodome
|road=Kaigan-dōri – Shinbashi
|notes=Clockwise entrance, counterclockwise exit
}}
{{JPNint|exit|name
|km=3.4
|exit=—
|type=incomplete
|name=Shiodome
|road=File:Shuto Urban Expwy Sign Y.svg Yaesu Route north – Kita-Ikebukuro, Shin-Kyōbashi
|notes=Clockwise entrance, counterclockwise exit
}}
{{JPNint|exit|name
|location_special=Minato
|lspan=5
|km=4.3
|exit=—
|name=Hamazakibashi
|road={{jct|country=MEX|extra=airport}}File:Shuto Urban Expwy Sign B.svgFile:Shuto Urban Expwy Sign K1.svgFile:Shuto Urban Expwy Sign 0011.svg{{hair space}}File:JP Expressway CA.svg{{hair space}}File:JP Expressway E51.svg{{hair space}}File:Shuto Urban Expwy Sign 1-Haneda.svg Haneda Route south – Haneda, Bayshore Route, Yokohane Route, Daiba Route, Tokyo Bay Aqua-Line, Higashi-Kantō Expressway
|notes=
}}
{{JPNint|exit|name
|km=5.2
|km2=5.7
|exit=19/20
|name=Shiba-kōen
|road=File:Japanese_National_Route_Sign_0001.svg Tokyo Metropolitan Route 319 – to National Route 1, Hibiya, Roppongi, Kanasugi Bridge, Shinagawa
|notes=
}}
{{JPNint|exit|name
|km=6.6
|exit=—
|name=Ichinohashi
|road=File:Shuto Urban Expwy Sign 0002.svg Meguro Route south – Meguro, Togoshi
|notes=
}}
{{JPNint|exit|name
|km=7.2
|exit=21
|name=Iikura
|road=Tokyo Metropolitan Route 415 (Azabu-dōri) – Roppongi
|notes=
}}
{{JPNint|exit|name
|km=7.8
|type=concur
|exit=—
|name=Tanimachi
|road=File:JP Expressway E1.svgFile:Shuto Urban Expwy Sign 0003.svg Shibuya Route west – to Tōmei Expressway, Shibuya
|notes=Clockwise beginning of AH1 concurrency
}}
{{JPNint|exit|name
|location_special=Chiyoda
|lspan=7
|km=8.8
|km2=9.2
|exit=23/24
|name=Kasumigaseki
|road=Tokyo Metropolitan Route 415 (Roppongi-dōri) – Hibiya, Hanzōmon, Nagatachō
|notes=
}}
{{JPNint|exit|name
|km=10.2
|exit=—
|name=Miyakezaka
|road=File:JP Expressway E20.svgFile:Shuto Urban Expwy Sign 0004.svg Shinjuku Route west – to Chūō Expressway, Shinjuku
|notes=
}}
{{JPNint|exit|name
|km=11.6
|type=incomplete
|exit=25
|name=Daikanchō
|road=Uchibori-dōri – Kitanomaru Park
|notes=Clockwise exit, counterclockwise entrance
}}
{{JPNint|exit|name
|km=12.0
|type=incomplete
|exit=26
|name=Kitanomaru
|road=Uchibori-dōri – Hitotsubashi
|notes=Clockwise entrance, counterclockwise exit
}}
{{JPNint|exit|name
|km=12.3
|exit=—
|name=Takebashi
|road=File:Shuto Urban Expwy Sign 0005.svg Ikebukuro Route north – Ōmiya, Kita-Ikebukuro
|notes=
}}
{{JPNint|exit|name
|km=12.9
|km2=13.2
|exit=28/29
|name=Kandabashi
|road=Hibiya-dōri – Ōtemachi
|notes=
}}
{{JPNint|exit|name
|km=13.3
|type=incomplete
|exit=—
|name=Kandabashi
|road=File:Shuto Urban Expwy Sign Y.svg Yaesu Route south – Marunouchi, Shinbashi
|notes=Clockwise exit, counterclockwise entrance
}}
{{JPNint|exit|name
|location_special=Chūō
|lspan=2
|km=14.0
|type=closed
|exit=30
|name=Gofukubashi
|road=File:Shinkansen jre.svg Tokyo Metropolitan Route 405 (Sotobori-dōri) – Tokyo Station
|notes=Closed on 10 May 2021
Clockwise entrance, counterclockwise exit
}}
{{JPNint|exit|name
|km=14.2
|type=closed
|exit=31
|name=Edobashi
|road=Tokyo Metropolitan Route 316 (Shōwa-dōri)
|notes=Closed on 10 May 2021'
Clockwise exit, counterclockwise entrance
}}
{{Jctbtm|exit|keys=incomplete,closed,concur|col=8}}
References
{{Commons category|Route C1 (Shuto Expressway)}}
{{reflist}}
{{Shuto Expressway}}
{{coord missing|Tokyo}}