Case Study
TYLI: Caiyuanba Bridge
Project Highlights: Crossing over the Yangtze River, the Caiyuanba Bridge connects two of Chongqing’s busiest business districts and serves as one of the transportation backbones for this rapidly expanding and congested city. The double level bridge, with a main span of 420 meters, carries six lanes of highway and two pedestrian walkways on its upper deck, and two dedicated tracks of monorails on its lower deck for Chongqing Light Rail Line 3. Because the bridge is located at the center of the city and is a prominent part of the skyline, aesthetics took precedence in design considerations. After careful study of the location, a slender tied-arch was selected to carry the double level bridge girder over the river. The US$190 million Caiyuanba Bridge is one of the longest transit tied-arch b