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The Jin'an Bridge as is a suspension bridge currently under construction near Lijiang, Yunnan, China. Once complete the bridge, at 461 m (1,512 ft), will be the fourth highest in the world. The bridge will form part of the G4216 Chengdu–Lijiang Expressway carrying traffic over the Jinsha River. The bridge construction began in 2016 and it is expected to open in 2020. The main span of the bridge will be 1,386 m (4,547 ft) making it one of the longest ever built.

Jin'an Bridge

金安金沙江特大桥
Coordinates26°49′20″N 100°26′30″E / 26.82222°N 100.44167°E / 26.82222; 100.44167Coordinates: 26°49′20″N 100°26′30″E / 26.82222°N 100.44167°E / 26.82222; 100.44167
CarriesG4216 Chengdu–Lijiang Expressway China Expwy G4216 sign no name.svg
CrossesJinsha River
LocaleLijiang, Yunnan, China
Characteristics
DesignSuspension
MaterialSteel
Total length1,681 m (5,515 ft)[1]
Longest span1,386 m (4,547 ft)[2]
Clearance above461 m (1,512 ft)
History
Construction start2016
OpenedExpected 2021
Jin'an Bridge is located in Yunnan
Jin'an Bridge
Jin'an Bridge
Location in Yunnan

The bridge crosses the river 1.4km upstream from the Jin'anqiao Dam. Due to the formation of the reservoir behind the dam, the full clearance to the original river level will not be visible.

G4216 Chengdu–Lijiang Expressway

Contents

Original designEdit

The original design of the expressway crossed the Jinsha River 30 km (30,000 m) 20km downstream at the village of Taku. The Taku Bridge was also a suspension bridge design. The original design was slightly higher crossing 512 m (1,680 ft) above the river and slightly shorter with a main span of the bridge 1,190 m (3,900 ft)

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