Japan - Okayama

Okayama  is the capital city of Okayama Prefecture in the Chūgoku region of Japan. The city of Okayama is located in the southern part of Okayama Prefecture, which in turn is located in western part of the island of Honshū. The city is bounded on the south by the Inland Sea. Asahi River crosses Okayama.
The Great Seto Bridge is a series of double deck bridges connecting Okayama and Kagawa prefectures in Japan across a series of five small islands in the Seto Inland Sea. Built over the period 1978–88, it is one of the three routes of the Honshū–Shikoku Bridge Project connecting Honshū and Shikokuislands, and the only one with railroad connections included. At 13.1 kilometers (8.1 mi), it ranks as the world's longest two-tiered bridge system.

Carries	4 lanes of roadway (upper) 2 rail lines (lower)
Crosses	Seto Inland Sea
Locale	Honshū and Shikoku
Maintained by	Honshu–Shikoku Bridge Authority
Design	double-decked bridge system
Total length	13.1 km (8.1 mi)
Opened	1988
Toll	4,850 yen