Providing engineering services and on-site supervision for the construction of the Songun River water diversion tunnel and surface water collection and flood control structures in the Songun Copper Mine area. Providing engineering services and on-site supervision for the construction of the Songun River water diversion tunnel and surface water collection and flood control structures in the Songun Copper Mine area. Status In Progress Registration Date 2025/10/21 Update Date 2025/10/21 Manager Iran National Copper Industries Company - Sungun Copper Complex Goals Collecting and directing all surface water and controlling flooding in the Songun mine area through the Songun River water diversion tunnel outside the Songun copper mine area. Schedule Project supervision (3rd Phase) Executive Actions A concrete dam and a depreciation basin with a height of 19 meters and a crest length of 56 meters within the S5 basin A permeable gravel dam with a height of 15 meters and a crown length of 75 meters within the D10 basin. An earthen dam with a clay core with a height of 17.50 meters from the base and a crest length of about 126 meters, along with other ancillary facilities including a diversion system, spillway, and related retaining walls, within the S12 basin. Sedimentation structures (Check dam ) numbering about 21 Collection of surface water by the northern, middle and southern channels of the box culvert design, with a total length of approximately 6.70 km. Inlet and outlet structures at the beginning and end of the tunnel to transfer floodwaters outside the mine basin. Flood transfer tunnel outside the mine area basin (mechanized, 5.50 meters in diameter and 4.80 kilometers long) Mechanized tunnel segment production factory in Ahar city Geography Location East Azarbaijan province/Varzghan city/Sungun Copper Complex area