Hydel Generation • Salient Features • Power Stations • Performance • Mangla Dam
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Mangla Dam
Mangla Dam Project was actually conceived in 1950's as a multipurpose project to be constructed at a place called Mangla on river Jhelum located about 30 km upstream of Jhelum city (120 km from Capital Islamabad). The initial investigation and its feasibility studies were completed in 1958. Later on the project was included in the Indus Basin Project.
The construction of Mangla Dam was started in 1962 and completed in 1967.
PURPOSE OF THE PROJECT
Mangla Dam is a multipurpose project primarily meant for affecting part replacement of water supplies of three eastern rivers from Jhelum river. Besides, it is designed to conserve and control flood water of river Jhelum through significant reduction in flood peaks and volumes at downstream by incidental use of the available storage space. The other by products are power generation to meet the power demand of the country, fish culture to provide protein rich diet, tourism to provide healthy recreation facilities to the people and navigation.
PROJECT COMPONENTS
The project consists of two dams (Main Dam & Jari Dam), two dykes to contain reservoir, two spillway for outflow regulations, intake structures with five tunnels, a power house and a tailrace canal.
POWER HOUSE
Power House has been constructed at the toe of intake embankment at the ground surface elevation of 865 ft. SPD. The water to power house is supplied through five steel lined tunnels of 30/26 ft. diameter. Each tunnel is designed to feed two generating units. The power house tailrace discharges into New Bong Canal which has a length of 25,000 ft. with discharge capacity of about 49,000 cusecs, and terminates at an automatic gate control headworks at about 12 km downstream located near old Bong Escape Headworks.
During the high reservoir
Salient features/Principal data of main components of Mangla Dam and Power House