Maocaojie Bridge, 2,848.64 m long, was finally completed in 2006. Relying on this bridge, a set of key technologies for design, construction and maintenance of concrete-filled steel-tube arch bridge were formed for the first time in China, which greatly promoted our technical progress in concrete-filled steel-tube arch bridge.

Second Prize for National Science and Technology Progress Award 

First Prize for Hunan Provincial Excellent Engineering Design Award