樞紐工程(cheng)由大(da)(da)壩(ba)(ba)、副(fu)(fu)壩(ba)(ba)(原非(fei)常(chang)溢(yi)洪道(dao))、溢(yi)洪道(dao)、南、北(bei)灌(guan)溉(gai)輸(shu)水(shui)管、電(dian)站等建(jian)筑物組(zu)(zu)成(cheng)。大(da)(da)壩(ba)(ba)系碾壓式均質土(tu)壩(ba)(ba),最大(da)(da)壩(ba)(ba)高35.3米(mi)(mi)(mi),壩(ba)(ba)頂(ding)(ding)高程(cheng)88米(mi)(mi)(mi),壩(ba)(ba)頂(ding)(ding)長450米(mi)(mi)(mi);副(fu)(fu)壩(ba)(ba)(原非(fei)常(chang)溢(yi)洪道(dao))位(wei)于大(da)(da)壩(ba)(ba)左端(duan),圍漿砌石(shi)堰(yan)(yan)(yan),堰(yan)(yan)(yan)頂(ding)(ding)高程(cheng)78米(mi)(mi)(mi),溢(yi)流(liu)長度50米(mi)(mi)(mi),堰(yan)(yan)(yan)體(ti)上填筑的(de)是(shi)松(song)散坡積土(tu),斷面單薄,不到自破水(shui)位(wei)(1000年一遇洪水(shui)位(wei))就(jiu)有自潰的(de)危險(xian),加固設計(ji)中已建(jian)議(yi)改成(cheng)副(fu)(fu)壩(ba)(ba);溢(yi)洪道(dao)布(bu)置在(zai)大(da)(da)壩(ba)(ba)左側,為(wei)寬(kuan)頂(ding)(ding)堰(yan)(yan)(yan)型,堰(yan)(yan)(yan)頂(ding)(ding)高程(cheng)80米(mi)(mi)(mi),溢(yi)流(liu)長度64米(mi)(mi)(mi),其上布(bu)置8孔(kong)7.1×3米(mi)(mi)(mi)(寬(kuan)×高)的(de)平(ping)板鋼閘門;南涵管位(wei)于大(da)(da)壩(ba)(ba)右端(duan),為(wei)發電(dian)、灌(guan)溉(gai)輸(shu)水(shui)管,系深埋式鋼筋混凝(ning)土(tu)壓力圓(yuan)管,內徑2.4米(mi)(mi)(mi),后分發電(dian)和灌(guan)溉(gai)兩條支(zhi)管, 其過(guo)流(liu)量分別為(wei)28.5和18秒(miao)立米(mi)(mi)(mi);北(bei)涵灌(guan)溉(gai)輸(shu)水(shui)管布(bu)置在(zai)副(fu)(fu)壩(ba)(ba)底部(bu),為(wei)鋼筋混凝(ning)土(tu)無(wu)壓圓(yuan)管,直徑2米(mi)(mi)(mi),長75米(mi)(mi)(mi),設計(ji)引用流(liu)量12秒(miao)立米(mi)(mi)(mi);電(dian)站為(wei)壩(ba)(ba)后式,裝機3臺1360千(qian)瓦機組(zu)(zu),多年平(ping)均發電(dian)量915萬千(qian)瓦小時。