Seto-Chūō Expressway

The Seto-Chūō Expressway (瀬戸中央自動車道, Seto-Chūō Jidōsha-dō) is a tolled expressway that connects Okayama and Kagawa prefectures in Japan across a series of five small islands in the Seto Inland Sea. Built between 1978 and 1988, it is one of the three routes of the Honshu-Shikoku Bridge Expressway Company connecting Honshū and Shikoku islands. The route is signed E30 under Ministry of Land, Infrastructure, Transport and Tourism's "2016 Proposal for Realization of Expressway Numbering."[1]

Seto-Chūō Expressway
瀬戸中央自動車道
Route information
Maintained by Honshu-Shikoku Bridge Expressway Company
Length37.3 km (23.2 mi)
Existed1988–present
Component
highways		 National Route 30
Major junctions
North endHayashima Interchange
San'yō Expressway
in Kurashiki, Okayama
South endSakaide Interchange
Takamatsu Expressway
in Sakaide, Kagawa
Highway system
National highways of Japan
Expressways of Japan

Route description
The Great Seto Bridge, part of the Seto-Chūō Expressway

The expressway is 37.3 kilometres (23.2 mi) long with 20.8 kilometres (12.9 mi) of that stretch consisting of bridges, chiefly the Great Seto Bridge. The expressway has four lanes along the entire route from Sakaide, Kagawa to Kurashiki in Okayama. The speed limit is 100 km/h from the expressway's northern terminus at Hayashima Interchange in Kurashiki to Kojima Interchange, also in Kurashiki. The southern remainder of the route has a speed limit set at 80 km/h.[2]

Junction list

TB= Toll booth, SA= Service Area, PA= Parking Area

PrefectureLocationkmmiExitNameDestinationsNotes
Through to San'yō Expressway
OkayamaKurashiki00.01/TBHayashima San'yō Expressway, National Route 2– Hiroshima, Okayama, Kobe, Okayama Airport
6.84.2PATsubue
8.25.12MizushimaOkayama Prefecture Route 21
15.0–
15.6		9.3–
9.7		SAKōnoikeThe northbound SA is at 15.0 km, the southbound SA is at 15.6 km
18.811.73KojimaOkayama Prefecture Route 21– Mizushima Industrial Area, Okayama
KagawaSakaide22.614.0—HitsuishijimaKagawa Prefecture Route 273– Hitsuishi IslandGeneral vehicles are prohibited from using the exit
24.415.2—IwakurojimaUnnamed Road– Iguro IslandGeneral vehicles are prohibited from using the exit
26.416.4—YoshimaKagawa Prefecture Route 274– Yoshima IslandGeneral vehicles are prohibited from using the exit
26.416.4PAYoshima
34.721.64Sakaide-kitaKagawa Prefecture Route 192– Central Sakaide
37.323.25/TBSakaide Takamatsu Expressway, National Route 11– Central Sakaide, Takamatsu, Matsuyama
Through to Takamatsu Expressway
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. "Japan's Expressway Numbering System". www.mlit.go.jp.
  2. "E30 SETO CHUO EXPWY". Honshu-Shikoku Bridge Expressway Company. Retrieved 25 February 2019.

See also

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