As a result of the more than 1 million cubic meters of silt dumped into the river each year, the estimated life span of the Techi Reservoir, completed in 1974, has been lowered by fifty years from 120.
位於大甲溪中游，供應台灣中部水源的德基水庫，民國六十三年興建完成後，就發現原本預估一百廿年壽命的水庫，因為每年一百餘萬立方公尺的淤砂，壽命減少了五十年。