Seto-Chūō Expressway
The 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." Route description. The expressway is long with 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. Junction list. TB= Toll booth, SA= Service Area, PA= Parking Area