工程樞紐由主壩、副壩、自潰壩、溢洪道、主壩輸水涵管、副壩輸水涵管和電站組成,主副壩均為粘土心墻壩,主壩長524.5m,壩頂高程55.7m(黃海,下同),防浪墻頂高程57.0m,壩頂寬5.0m,最大壩高22.4m;副壩長177.5m,壩頂高程55.7m,防浪墻頂高程57.0m,壩頂寬5.0m,最大壩高17.7m;副壩右段40m為自潰壩段,壩頂高程55.7m,防浪墻頂高程56.20m;溢洪道布置于主壩右岸,溢流堰為WES低堰,溢流凈寬2×12m,堰頂高程46.6m;主壩輸水涵管為圓形鋼筋砼管,管徑1.5m,管長85.87m,進口高程38.17m,出口高程37.67m;副壩輸水涵管為預(yù)制圓形砼管,管徑0.6m,管長64m,進口高程42.5m,進口高程42.17m。