“…The impact of road construction on water resources is various, mainly in the following aspects: first, the pollution caused by the random discharge of construction domestic wastewater and sewage to the river; second, the bridge construction needs drilling, piling and other technologies, which will produce a lot of mud, drilling slag and other wastes in the process of drilling and piling construction, which will fall into the river, causing water pollution; construction during the construction process, a large number of construction raw materials are stacked randomly, such as asphalt, cement, chemicals, etc. after a long time of wind blowing, rain washing, infiltration, etc., it will cause certain impact and pollution to the surface water resources; during the construction process, the mixing and maintenance of cement concrete and the cleaning of construction machinery will also cause certain pollution to the water resources [4]. The pollution of water resources will not only seriously affect people's life health, bring great inconvenience to people's life, but also affect local fishery and planting industry.…”