the total investment of Jin' an avenue project is 791 million yuan, and the overall project is east-west. It starts at the intersection of Xiangdi North Road and Logistics Avenue, passes through Niulanpo from west to east, crosses the Laodao River at Daijia Old House, and continues eastward at the south side of Huilong Village to the north extension line of Huangxing Avenue, with a total length of 2.895 kilometers. There are 2 bridges, 8 culverts, 1 passages, 2 interchanges and 8 plane crossings on the whole line. The project is divided into two phases. In the first phase, the Laodaohe Bridge (including ramp bridge and pedestrian walkway) will be built first. In the second phase, the auxiliary roads and other subgrade sections under the bridge and the Yuchangxia Railway Bridge will be built after the basic farmland is adjusted.