Bakhtiari Dam
| Bakhtiari Dam | |
|---|---|
 Location of Bakhtiari Dam in Iran
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| Country | Iran |
| Location | Andimeshk County, Lorestan/Khuzestan Provinces |
| Coordinates | 32°57′23.58″N 48°45′34.87″E / 32.9565500°N 48.7596861°ECoordinates: 32°57′23.58″N 48°45′34.87″E / 32.9565500°N 48.7596861°E |
| Status | Under construction |
| Construction began | 25 March 2013 |
| Construction cost | $2 billion USD |
| Dam and spillways | |
| Type of dam | Arch |
| Impounds | Bakhtiari River |
| Height | 325 m (1,066 ft) |
| Length | 434 m (1,424 ft) |
| Width (crest) | 10 m (33 ft) |
| Width (base) | 30 m (98 ft) |
| Dam volume | 3,100,000 m3 (109,475,467 cu ft) |
| Spillway type | Service, gate-controlled |
| Spillway capacity | 5,830 m3/s (205,885 cu ft/s) |
| Reservoir | |
| Creates | Bakhtiari Reservoir |
| Total capacity | 4,845,000,000 m3 (3,927,905 acre·ft) |
| Catchment area | 6,288 km2 (2,428 sq mi) |
| Surface area | 58.7 km2 (23 sq mi) |
| Power station | |
| Hydraulic head | 289 m (948 ft) (max.) |
| Turbines | 6 x 250 MW Francis type |
| Installed capacity | 1,500 MW |
| Annual generation | 3 billion kWh (est.) |
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Website http://en.iwpco.ir/Bakhtiari/default.aspx |
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The Bakhtiari Dam is an arch dam currently under construction on the Bakhtiari River within the Zagros Mountains on the border of Lorestan and Khuzestan Provinces, Iran. At a planned height of 325 metres (1,066 ft), it will be the world's tallest dam once completed and withhold the second largest reservoir in Iran after the Karkheh reservoir. The main purpose of the dam is hydroelectric power production and it will support a 1,500 MW power station. By trapping sediment, the dam is also expected to extend the life of the Dez Dam 50 km (31 mi) downstream.
Preliminary studies for the dam began in 1996 and were carried out by Mahab Qods Consulting Engineers. The studies were carried out over a period of 33 months and in March 2000, the results were given to Iran Water & Power Resources Development Co (IWPCO). In May 2005, IWPCO awarded consultation services for the project to Moshanir Consulting Engineers, Dezab Consulting Engineers, Econo-Electrowatt/Boyri and Stucky Pars Consulting Engineers. On April 30, 2007 the construction contract was awarded to China's Sinohydro Corporation. The contract is worth $2 billion and was to be funded with direct investment from China. Sinohydro signed the 118-month contract on March 15, 2011 and was expected to be working with Iran's Farab. But the Iranian government rejected Sinohydro's bid in late May 2012 and handed the project over to Khatam-al-Anbiya (KAA), which is controlled by the Iranian Revolutionary Guard Corps. The KAA commander announced on 19 December 2012 that construction of the dam had begun with access roads leading to the project site. On 25 March 2013, Iranian President Mahmood Ahmadinejad attended a groundbreaking ceremony for the dam, initiating its construction.
During construction, a total of six bridges will be built to support workers, vehicles and equipment in addition to various access roads. To divert the river, two tunnels, 1,151 m (3,776 ft) and 1,180 m (3,871 ft) in length will be constructed at the dam's left abutment. They will have discharge capacities of 2,090 m3/s (73,808 cu ft/s) and 1,680 m3/s (59,329 cu ft/s) respectively. To divert the water, two roller-compacted concrete cofferdams will be constructed. The upstream cofferdam will be 51 m (167 ft) high and the downstream 25 m (82 ft). Material to construct the dam including aggregate will come from the actual excavation of the dam site along with three quarries in the area.
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Wikipedia