Daxiaojing Bridge

Daxiaojing Bridge
大小井特大桥
Dongdangxiang, Guizhou, China
708 feet high / 216 meters high
1,476 foot span / 450 meter span
2019

Daxiaojing Bridge opened in 2019 as the longest span arch bridge in Guizhou Province with a giant concrete filled steel tubular span of 450 meters. This was surpassed in 2023 by the Wujiang Bridge Deyu. Originally planned as a 450 meter span cable stayed bridge, the Daxiaojing scheme was switched to an arch, allowing the crossing to hold its own in the shadow of the nearby Pingtang Bridge, a colossal cable stayed viaduct with the tallest bridge tower ever built in China at 332 meters.

Located at kilometer 70 on the S62 Pingtang to Luodian Expressway, the 1,501 meter long structure has a span configuration of 9x40 +450 +16x40 meters. The arch has a span to rise ratio of 4.5 to 1. The cross section at the base of the arch measures 14 meters while the truss is 8 meters deep at the crown. The deck is 24.5 meters wide.