樞紐工程(cheng)由大(da)(da)(da)壩(ba)(ba)(ba)(ba)、副壩(ba)(ba)(ba)(ba)(原非常溢(yi)(yi)洪(hong)道(dao))、溢(yi)(yi)洪(hong)道(dao)、南(nan)、北灌溉(gai)(gai)輸(shu)(shu)(shu)水(shui)管(guan)、電(dian)(dian)站等建筑物組成。大(da)(da)(da)壩(ba)(ba)(ba)(ba)系(xi)碾壓(ya)式均(jun)質土(tu)(tu)壩(ba)(ba)(ba)(ba),最大(da)(da)(da)壩(ba)(ba)(ba)(ba)高(gao)(gao)35.3米(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)高(gao)(gao)程(cheng)88米(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)長(chang)(chang)(chang)450米(mi)(mi);副壩(ba)(ba)(ba)(ba)(原非常溢(yi)(yi)洪(hong)道(dao))位(wei)(wei)于大(da)(da)(da)壩(ba)(ba)(ba)(ba)左(zuo)端,圍漿砌石(shi)堰(yan)(yan),堰(yan)(yan)頂(ding)高(gao)(gao)程(cheng)78米(mi)(mi),溢(yi)(yi)流(liu)長(chang)(chang)(chang)度50米(mi)(mi),堰(yan)(yan)體上填筑的是松(song)散坡積土(tu)(tu),斷面單薄,不到自破水(shui)位(wei)(wei)(1000年一(yi)遇(yu)洪(hong)水(shui)位(wei)(wei))就有自潰的危險,加固(gu)設計中已建議改(gai)成副壩(ba)(ba)(ba)(ba);溢(yi)(yi)洪(hong)道(dao)布置在(zai)大(da)(da)(da)壩(ba)(ba)(ba)(ba)左(zuo)側,為寬(kuan)頂(ding)堰(yan)(yan)型,堰(yan)(yan)頂(ding)高(gao)(gao)程(cheng)80米(mi)(mi),溢(yi)(yi)流(liu)長(chang)(chang)(chang)度64米(mi)(mi),其上布置8孔7.1×3米(mi)(mi)(寬(kuan)×高(gao)(gao))的平(ping)板鋼閘(zha)門(men);南(nan)涵管(guan)位(wei)(wei)于大(da)(da)(da)壩(ba)(ba)(ba)(ba)右(you)端,為發電(dian)(dian)、灌溉(gai)(gai)輸(shu)(shu)(shu)水(shui)管(guan),系(xi)深埋式鋼筋(jin)混(hun)凝(ning)土(tu)(tu)壓(ya)力(li)圓管(guan),內徑2.4米(mi)(mi),后分(fen)發電(dian)(dian)和(he)灌溉(gai)(gai)兩條支管(guan), 其過(guo)流(liu)量分(fen)別為28.5和(he)18秒(miao)立米(mi)(mi);北涵灌溉(gai)(gai)輸(shu)(shu)(shu)水(shui)管(guan)布置在(zai)副壩(ba)(ba)(ba)(ba)底(di)部,為鋼筋(jin)混(hun)凝(ning)土(tu)(tu)無壓(ya)圓管(guan),直(zhi)徑2米(mi)(mi),長(chang)(chang)(chang)75米(mi)(mi),設計引(yin)用流(liu)量12秒(miao)立米(mi)(mi);電(dian)(dian)站為壩(ba)(ba)(ba)(ba)后式,裝(zhuang)機3臺1360千瓦(wa)機組,多年平(ping)均(jun)發電(dian)(dian)量915萬千瓦(wa)小時。