Seymareh dam and its Powerplant is about 700 kilometers distance from north west of Tehran , in-between two provinces of Ilam and Lorestan and 40 kilometers distance from Darreh Shahr town, executed across the river of Seymareh .This dam is made of concrete and is shaped in double arcs .The instruments of dam were provided and installed by the Munir Co. The origin of the equipment is Huggenberger Co. from Switzerland.