Tarbela Dam information

Tarbela Dam
Tarbela Dam
	Aerial view of the dam and Tarbela Lake reservoir
	Location of Tarbela Dam in Pakistan Tarbela Dam (Khyber Pakhtunkhwa)
Official name	Tarbela Dam
Location	Haripur District, Khyber Pakhtunkhwa, Pakistan
Coordinates	34°05′23″N 72°41′54″E / 34.0897222222°N 72.6983333333°E
Purpose	Water Storage, Power Generation
Status	Operational
Construction began	1968
Opening date	1976; (48 years ago)
Construction cost	2.85 Billion USD
Owner(s)	Government of Pakistan
Operator(s)	Water and Power Development Authority
Dam and spillways
Type of dam	Earth and rock filled dam
Impounds	Indus River
Height (foundation)	470 feet (143 m)
Height (thalweg)	485 feet (148 m)
Length	9,000 feet (2,743 m)
Dam volume	139,000,000 cu yd (106,000,000 m3)
Spillways	16 ( 7 Service + 9 Auxiliary)
Spillway capacity	Service 650,000 cusecs + Auxiliary 850,000 cusecs
Reservoir
Creates	Tarbela Reservoir
Total capacity	11,620,000 acre⋅ft (14.33 km3) (1974)
Active capacity	9,679,000 acre⋅ft (11.939 km3) (1974)
Inactive capacity	1,941,000 acre⋅ft (2.394 km3) (1974)
Catchment area	65,500 sq mi (170,000 km2)
Surface area	100 sq mi (260 km2)
Maximum water depth	450 ft (140 m)
Normal elevation	1,464 ft (446 m)
Power Station
Commission date	1977–1982
Turbines	10 × 175 MW; 4 × 432 MW; 3 × 470 MW
Installed capacity	4,888 MW
Annual generation	17,395 GWh (2020)

Tarbela Dam (Pashto: د توربېلې بند, Hindko: تربیلا بند) is an earth-filled dam along the Indus River in Pakistan's Khyber Pakhtunkhwa province. It is located mainly in the Haripur and Swabi District Tehsil Ghazi and Topi

^[1] It is about 20 km (10 mi) from the city of Swabi KPK, 105 km (65 mi) northwest of Islamabad, and 125 km (80 mi) east of Peshawar. It is the largest earth-filled dam in the world.^[2]^[3]^[4] The dam is 143 metres (470 ft) high above the riverbed and its reservoir, Tarbela Lake, has a surface area of approximately 250 square kilometres (97 sq mi).^{[citation needed]}

The Tarbela Dam is located on the Indus River near the village of Tarbela in Bara, approximately 30 kilometers from the town of Attock. Positioned where the Indus River emerges from the foothills of the Himalayas and enters the Potwar Plateau, the dam features a reservoir for water storage. The average annual flow available is 101 billion cubic meters (3221 m³/sec).^[5] It stands 143 meters tall and covers an area of 243 square kilometers. It has a storage capacity of 11.9 billion cubic meters of water and has nine gates to control the outflow of water. The dam was completed in 1976 and was designed to utilize water from the Indus River for irrigation, flood control, and the generation of hydroelectric power^[6] by storing flows during the monsoon period while subsequently releasing stored water during the low flow period in winter. The installed capacity of the 4,888 MW Tarbela hydroelectric power stations will increase to 6,418 MW after completion of the planned fifth extension financed by Asian Infrastructure Investment Bank and the World Bank. Then, it will be the 12^th largest hydroelectric dam in the world, for electricity production capacity. ^[7]

^ Tarbela Dam. WAPDA.
^ Asianics Agro-Dev. International (Pvt) Ltd. (2000). Tarbela Dam and related aspects of the Indus River Basin, Pakistan (PDF) (Report). Cape Town: World Commission on Dams. Archived from the original (PDF) on 2010-06-13. Retrieved 2010-10-28.
^ Earth Sciences Web Team. "Tarbela Dam, Pakistan". Earth Observatory. National Aeronautics and Space Administration. Archived from the original on 2010-07-15. Retrieved 2010-10-28.
^ "Tarbela Dam". PakistanPaedia. 2006-08-07. Retrieved 2012-01-26.
^ "Detection of Sediment Trends Using Wavelet Transforms in the Upper Indus River". Retrieved 13 May 2024.
^ Rodney White (1 January 2001). Evacuation of Sediments from Reservoirs. Thomas Telford Publishing. pp. 163–169. ISBN 978-0727729538. Retrieved 4 August 2013.
^ "Tarbela 5th extension project to generate electricity by 2025". 20 May 2023. Retrieved 31 May 2023.

[1] Tarbela Dam. WAPDA.

[wcd-study-2] Asianics Agro-Dev. International (Pvt) Ltd. (2000). Tarbela Dam and related aspects of the Indus River Basin, Pakistan (PDF) (Report). Cape Town: World Commission on Dams. Archived from the original (PDF) on 2010-06-13. Retrieved 2010-10-28.

[eo-dam-3] Earth Sciences Web Team. "Tarbela Dam, Pakistan". Earth Observatory. National Aeronautics and Space Administration. Archived from the original on 2010-07-15. Retrieved 2010-10-28.

[4] "Tarbela Dam". PakistanPaedia. 2006-08-07. Retrieved 2012-01-26.

[5] "Detection of Sediment Trends Using Wavelet Transforms in the Upper Indus River". Retrieved 13 May 2024.

[Rodney_White-6] Rodney White (1 January 2001). Evacuation of Sediments from Reservoirs. Thomas Telford Publishing. pp. 163–169. ISBN 978-0727729538. Retrieved 4 August 2013.

[7] "Tarbela 5th extension project to generate electricity by 2025". 20 May 2023. Retrieved 31 May 2023.

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Tarbela Dam
Aerial view of the dam and Tarbela Lake reservoir
Location of Tarbela Dam in Pakistan Show map of Pakistan Tarbela Dam (Khyber Pakhtunkhwa) Show map of Khyber Pakhtunkhwa
Official name	Tarbela Dam
Location	Haripur District, Khyber Pakhtunkhwa, Pakistan
Coordinates	34°05′23″N 72°41′54″E / 34.0897222222°N 72.6983333333°E / 34.0897222222; 72.6983333333
Purpose	Water Storage, Power Generation
Status	Operational
Construction began	1968
Opening date	1976 (48 years ago) (1976)
Construction cost	2.85 Billion USD
Owner(s)	Government of Pakistan
Operator(s)	Water and Power Development Authority
Dam and spillways
Type of dam	Earth and rock filled dam
Impounds	Indus River
Height (foundation)	470 feet (143 m)
Height (thalweg)	485 feet (148 m)
Length	9,000 feet (2,743 m)
Dam volume	139,000,000 cu yd (106,000,000 m³)
Spillways	16 ( 7 Service + 9 Auxiliary)
Spillway capacity	Service 650,000 cusecs + Auxiliary 850,000 cusecs
Reservoir
Creates	Tarbela Reservoir
Total capacity	11,620,000 acre⋅ft (14.33 km³) (1974)
Active capacity	9,679,000 acre⋅ft (11.939 km³) (1974)
Inactive capacity	1,941,000 acre⋅ft (2.394 km³) (1974)
Catchment area	65,500 sq mi (170,000 km²)
Surface area	100 sq mi (260 km²)
Maximum water depth	450 ft (140 m)
Normal elevation	1,464 ft (446 m)
Power Station
Commission date	1977–1982
Turbines	10 × 175 MW 4 × 432 MW 3 × 470 MW
Installed capacity	4,888 MW
Annual generation	17,395 GWh (2020)