Because of the interaction of environmental condition and water, all kinds of disasters happen to the highway along river and lakeside frequently, even lead to great water damage and cause personnel casualties and economic loss.

• 沿江河、湖区的公路建设，由于环境条件和水的相互作用，各类灾害频繁发生，甚至造成公路的严重水毁，导致人员伤亡和经济损失。