1988 Great Seto Bridges in Japan

(Satellite, 2,267 photos)

"Construction on the double-decker bridge began in the late 1970s, and took 10 years to complete. At a cost of $7 billion dollars and the lives of 13 bridge construction workers, the bridge was opened in 1988." [JapanTravel]

From south (Shikoku Island) to north (Mainland (Honshu Island)):

Street View, Nov 2020

Street View, Apr 2015

Street View, Apr 2015

CoolJapan, 1 of 5 photos
Great Seto Bridge (Seto Ohashi) is the inclusive name for six consecutive bridges connecting five islands in the Seto Inland Sea.

wattention, 1 of several photos
"world’s longest two-tier bridge"
The bridges have a total length of 13km (8 miles).

 

Highway Engineering Discoveries posted
The Great Seto Bridge is a series of double deck bridges connecting Okayama and Kagawa prefectures in Japan

The six bridges from south to north [wikiwand]:

• Minami Bisan-Seto Bridge is "a double-decked suspension bridge with a center span of 1,100 meters (3,609 ft) and a total length of 1,648 m (5,407 ft)." The roadway is 93m (305') high and makes the HighestBridges list.
• Kita Bisan-Seto Bridge is another suspension bridge that shares an anchorage with the above bridge. "The center span is 990 meters (3,248 ft) and the total length is 1,538 m (5,046 ft)."
• Yoshima Bridge is "a continuous double-decked truss bridge with a main span of 246 meters (807 ft) and a total of five spans with a length of 847 meters (2,779 ft)." It keeps the road and railroad elevated over the Yoshima Island.
• Iwakurojima Bridge "is a double-decked cable-stayed bridge with a center span of 420 meters (1,380 ft) and a total length of 790 meters (2,590 ft)."
• Hitsuishijima Bridge "is a double-decked cable-stayed bridge with a center span of 420 meters (1,380 ft) and a total length of 790 meters (2,590 ft)."
• Shimotsui-Seto Bridge "is a double-decked suspension bridge with a center span of 940 meters (3,080 ft) and a total length of 1,400 meters (4,600 ft)."

 

Bridges Now and Then posted
Construction of the Great Seto Bridge, Okayama and Kagawa Prefectures, Japan, September 7, 1986. (Leo-setä)