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The 555m long main bridge is of triple-tower cable-stayed and self-anchored suspension design, including the main-tower cable-stayed segment and the self-anchored suspended cable segment. The approach bridges on both banks are constructed with continuous prestressed concrete box beams. 

Longgang bridge has a total length of 1132 m and a total width of 40 m. The main bridge is a three-tower cable-stayed and self-anchored composite suspension bridge, including cable-stayed structure section with main tower and self-anchored suspension structure section. Longgang bridge looks exquisite, and it is a first design that mixed the “fish big flash” meaning, with innovative technology, boasting a significant breakthrough among bridge design circle in China. The total investment of the bridge is 396 million yuan.