Abstract:Taking the Jianguo Road Tunnel Bridge Rainwater Pumping Station in Baoding City as an example, by analyzing the main cause of waterlogging in the tunnel bridge area, the upgrading and reconstruction schemes of the drainage system are reasonably determined. On the basis of the original land unchanged, the scale of the pumping station is increased from 0.83 m3/s to 3.0 m 3/s, and an initial rainwater storage tank with a volume of 1 200 m3 is added in order to realize the purpose of alleviate the waterlogging in the bridge area and improving the water environment together, at the same time to create the favorable conditions for the thorough reconstruction of the drainage system in the surrounding area for the future.