921大地震斷層通過石岡壩造成壩體16、17、18號溢洪道閘門毀損。保留做為921地震紀念公園。目前由上游增設擋水圍堰替代毀損閘門蓄水已恢復石岡壩之引水功能。
921 earthquake faults caused by Shigang Dam spillway gates of the dam 8,9 damage. Reserved as 921 Earthquake Memorial Park. Currently replaced by additional cofferdam upstream water has been restored damaged gate Ishioka dam's water feature.
官網：石岡壩