Sidu River Bridge, Suspension bridge in Badong County, China.
The Sidu River Bridge spans a total length of one thousand two hundred twenty-two meters with a main span of nine hundred meters, crossing the deep Sidu River valley in Hubei Province.
Officially opened on November fifteenth, two thousand nine, the bridge held the world record for the tallest suspension bridge at four hundred ninety-six meters above the valley until two thousand sixteen.
The bridge takes its name from the Sidu River, a left tributary of the Qingjiang, whose valley it crosses near Yesanguan. Its towers stand at the entrances of the Baziling Tunnel on the east and above the western slope, so drivers pass from tunnel to bridge without an approach span on the eastern side. The pilot cable was flown across the gorge by military rocket on 6 October 2006, a first in bridge building.
The bridge serves as a critical section of the G50 Huyu Expressway, enabling vehicles to cross the valley and reducing travel time significantly for residents and commercial transport in the region.
The first pilot cable was flown across the gorge by military rocket on 6 October 2006, since boats and helicopters could not be used at the site. On the east side the main cables are anchored in a tunnel bored over 40 m into the mountain, about 23 m above the adjacent road tunnel.
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