New Bong Escape Hydropower Project turbines, housed in a semi submerged powerhouse complex, is evacuated through an in-out connecting arrangement with the double circuit 132 kVA Mangla/Kharian transmission line, which passes over the Project site. No right-of-way acquisition was needed since connection facility has been built within the Project site. The Project uses the water being discharged from the upstream existing hydropower plant (1,000 MW Mangla Hydroelectric Power Station) located at Mangla Dam. The raising of Mangla Dam has been completed recently by the Pakistan’s Water and Power Development Authority (WAPDA), and will result in increase in the storage capacity of the Mangla Dam (“Mangla
Mangla Dam million cusecs. The emergency spillway is weir type with an erodible bund and a maximum capacity of 0.23 million cusecs. The 5 tunnels are steel and concrete lined and 1,560 feet long in bedrock. The internal diameter ranges between 26 and 31 feet. The power house, which consists of turbines, generators and transformers, has been constructed at the toe of an intake embankment at the ground surface elevation of 865 feet SPD. The water to the power house is supplied through five steel-lined tunnels of 30/26 feet diameter. Each tunnel is designed to feed two generating units. The power house