Seto-Chūō Expressway

{{Short description|Expressway in Okayama and Kagawa Prefectures, Japan}}

{{Infobox road

|country=JPN

|type=Expressway

|maint=Honshu-Shikoku Bridge Expressway Company

|route=Seto-Chūō

|alternate_name=File:JP Expressway E30.svg {{Nihongo2|瀬戸中央自動車道}}

|map =

| map_custom =

| length_mi =

| length_km =37.3

| length_round =

| length_ref =

| established =1988

| allocation ={{jct|country=JPN|Route|30}}

| direction_a=North

| terminus_a=Hayashima Interchange
File:JP Expressway E2.svg{{Jct|country=JPN|AH|1}} San'yō Expressway
in Kurashiki, Okayama

| junction =

| direction_b=South

| terminus_b=Sakaide Interchange
File:JP Expressway E11.svg Takamatsu Expressway
in Sakaide, Kagawa

}}

The {{nihongo|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."{{cite web|url=http://www.mlit.go.jp/road/sign/numbering/en/list/index.html|title=Japan's Expressway Numbering System|website=www.mlit.go.jp}}

Route description

The [[Great Seto Bridge, part of the Seto-Chūō Expressway|thumb|right|275px]]

The expressway is {{convert|37.3|km|mi}} long with {{convert|20.8|km|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.{{cite web|title=E30 SETO CHUO EXPWY|url=https://www.jb-honshi.co.jp/english/information/information-d.html|work=Honshu-Shikoku Bridge Expressway Company|accessdate=25 February 2019}}

Junction list

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

{{JPNinttop|exit|name}}

|colspan="8" style="text-align: center;"|Through to File:JP Expressway E2.svg{{Jct|country=JPN|AH|1}} San'yō Expressway

{{JPNint|exit|name

|prefecture_special=Okayama

|pspan=5

|location_special=Kurashiki

|lspan=5

|km=0

|exit=1/TB

|name=Hayashima

|road=File:JP Expressway E2.svg{{Jct|country=JPN|AH|1}}{{jct|country=MEX|extra=airport}} San'yō Expressway, {{jct|country=JPN|Route|2}}– Hiroshima, Okayama, Kobe, Okayama Airport

|notes=

}}

{{JPNint|exit|name

|km=6.8

|exit=PA

|name=Tsubue

|road=

|notes=

}}

{{JPNint|exit|name

|km=8.2

|exit=2

|name=Mizushima

|road=Okayama Prefecture Route 21

|notes=

}}

{{JPNint|exit|name

|km=15.0

|km2=15.6

|exit=SA

|name=Kōnoike

|road=

|notes=The northbound SA is at 15.0 km, the southbound SA is at 15.6 km

}}

{{JPNint|exit|name

|km=18.8

|exit=3

|name=Kojima

|road=Okayama Prefecture Route 21– Mizushima Industrial Area, Okayama

|notes=

}}

{{JPNint|exit|name

|prefecture_special=Kagawa

|pspan=6

|location_special=Sakaide

|lspan=6

|km=22.6

|exit=—

|name=Hitsuishijima

|type=incomplete

|road=Kagawa Prefecture Route 273– Hitsuishi Island

|notes=General vehicles are prohibited from using the exit

}}

{{JPNint|exit|name

|km=24.4

|exit=—

|name=Iwakurojima

|type=incomplete

|road=Unnamed Road– Iguro Island

|notes=General vehicles are prohibited from using the exit

}}

{{JPNint|exit|name

|km=26.4

|exit=—

|name=Yoshima

|type=incomplete

|road=Kagawa Prefecture Route 274– Yoshima Island

|notes=General vehicles are prohibited from using the exit

}}

{{JPNint|exit|name

|km=26.4

|exit=PA

|name=Yoshima

|road=

|notes=

}}

{{JPNint|exit|name

|km=34.7

|exit=4

|name=Sakaide-kita

|road=Kagawa Prefecture Route 192– Central Sakaide

|notes=

}}

{{JPNint|exit|name

|km=37.3

|exit=5/TB

|name=Sakaide

|road=File:JP Expressway E11.svg Takamatsu Expressway, {{jct|country=JPN|Route|11}}– Central Sakaide, Takamatsu, Matsuyama

|notes=

}}

|colspan="8" style="text-align: center;"|Through to File:JP Expressway E11.svg Takamatsu Expressway

{{Jctbtm|exit|keys=incomplete|col=8}}

See also

{{Portal|Roads|Japan}}

References

{{reflist}}