山区公路水毁问题是公路交通运输的一个严重问题。全国每年公路水害损失约10亿元,是一笔很大的耗费。云南是全国公路水毁重灾省之一。1980～1990年,平均每年用于水毁的抢修费达1000～1500万元。1988年水毁损失8000多万元,临沧,双江一带交通中断。1993年滇西平坡至漾濞段严重水毁,交通中断。近几年年损失高达0.7～0.8亿元,居全国前列。每年均有不能恢复 The problem of water damage in mountainous areas is a serious problem in road transport. The annual water loss in the country is estimated to be about 1 billion yuan, which is a great expense. Yunnan is one of the hardest-hit provinces in China. From 1980 to 1990, the average annual repair cost for water damage reached 1,000 to 15 million yuan. Water damage in 1988 more than 8,000 million loss, Lincang, Shuangjiang area traffic interruption. In 1993, a serious water damage occurred in Pingpo to Yangbi in western Yunnan and traffic was interrupted. In recent years, the loss of up to 0.7 to 0.8 billion yuan, ranking the forefront of the country. Every year can not be restored