Tarbela Dam is located on the river Indus 50 miles northwest of Islamabad and completed in 1974. It is World's largest earth and rock-filled dam, which has greatly enhanced the agriculture and industrial potential in the Country.

Due to silt carried by inflowing water, to the extent of 110,000 MAF per year since 1974, sedimentation has taken place, which has reduced the gross reservoir capacity from 11.620 MAF to 8.496 MAF.

Project Cost US$ 1.85 billion Objectives Transfer of Indus water to eastern rivers under Indus Basin Treaty signed in September 1960, to irrigate the land previously fed by eastern rivers and to produce power for industrial and domestic uses. Project Financing: Tarbela Development Fund (TDF) International Bank for Reconstruction and Development (IBRD-World Bank) Asian Development Bank (ADB) Canadian International Development Agency (CIDA) OPEC Dam Features:   Height 485 ft (Max.) above river bed Length 9000 ft. Main Spillway Capacity 650,000 cusecs Auxiliary Spillway Capacity 840,000 cusecs Lake area 100 square miles Hydropower:   - Units 1-4 on Tunnel-1 intake EL-1225 700 MW in 1977 - Units 5-8 on Tunnel-2 intake EL-1225 700 MW in 1982 - Units 9-10 on Tunnel-2 intake EL-1225 350 MW in 1985 - Units 11-14 on Tunnel-3 intake EL-1182-50 1728 MW in 1992-93 Total 3478 MW

Tarbela Dam Project Presentation