guzgasti hundred is ready for operation . the largest and most important water project in the northwest of the country is the gazgolsi level, 12 km downstream of the self-afarin level. an earthen reservoir with a clay core with a height of 37 meters and a crown length of 850 meters will be set up with 2 billion cubic meters of ars river water annually, one billion cubic meters will be set for iran's share and the remaining 1 billion cubic meters will be set for the republic of azerbaijan. the channel of this 100 is about 144 km, of which 52 km is in east azarbaijan province and 92 km is in the province ardabil is located. all of them have been fully implemented by iranian engineers. one of the complexities of the plan is the variety and number of hydromechanical valves, including overflow valves and agricultural catchments, and also because of the special environmental conditions in the city. diversion of river water has been implemented in several stages. optimum use of water and soil resources, use of border rights, develop