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The project commences on March 20, 2014, with a contract period of 54 months, and the contracted contract amount is approximately $132 million. The project has a total length of 52KM, two-way two-lane, subgrade width of 12 meters, and design speed of 80km/h, including road 47.241. KM, one special bridge (Ogowe River Bridge), 4707m long, the main bridge of Beibei is 65+120+65=250m continuous rigid frame, the main bridge of Nanxun adopts 35+60+35=130m continuous box girder, the rest The approach bridge adopts a continuous continuous T-beam with a 30m prestressed slab and a simple continuous structure, and a bridge of 52m.