据日本《坝工技术》季刊1986年第2期报导,谷关坝是修建在台湾省大甲河上的一座发电坝,该坝的特点是输修量大,因而设计成洪水时通过溢洪道向下游排沙。该坝1961年修建,原来设计的水库有效库容为1120万m~3,而1974年则减少到712万m~3。 According to the Japanese Quarterly Bulletin of Dam Engineering, Issue 2, 1986, GuGuan Dam is a power generation dam built on the Tachai River in Taiwan Province. The dam is characterized by a large amount of repairs and is designed to flood downstream through spillways Sand discharge. Built in 1961, the dam was originally designed to have an effective reservoir capacity of 11.2 million m3, while in 1974 it was reduced to 7.12 million m3.