Latyan Dam

latyan Dam
Latyan Dam is located in Iran
Latyan Dam
Location of latyan Dam in Iran
Official nameسد لتیان
LocationLavasan, Tehran Province, Iran
Coordinates35°47′24.25″N 51°40′42.63″E / 35.7900694°N 51.6785083°E / 35.7900694; 51.6785083
PurposeWater supply, power
StatusOperational
Construction began1963
Opening date1967
Dam and spillways
ImpoundsJajrood River
Height107 m (351 ft)
Length450 m (1,480 ft)
Width (base)99 m (325 ft)
Reservoir
Total capacity95,000,000 m3 (77,000 acre⋅ft)
Commission date1969/1987
TypeConventional
Turbines2 x 22.5 MW
Installed capacity45 MW
Website
https://thrw.ir/st/66

Latyan Dam (Persian: سد لتيان, also Romanized as Sadd-e Latyān) is a buttress dam on the Jajrood River, located less than 25 km from Tehran in the south of city of Lavasan. It is one of the main sources of water for Tehran metropolitan region. It was constructed between 1963 and 1967. The first generator in the dam's 45 MW hydroelectric power station was commissioned on 17 March 1969, the second on 13 April 1987.[1]

Geology

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Jajrood River basin is located in the southern part of central Alborz mountain range, the rocks of which date from the Palaeozoic era up to the Quaternary period, as below:

  • Palaeozoic era: The dolomitic rocks, sandstone and limestone. Belong to Devonian, Carboniferous and Permian periods.
  • Mesozoic era: The sandstone formation and limestones of Teriace and Shemshak (Lower Jurassic) coal formation with sandstone and fossiliferous limestones belong to this era.
  • Paleogene period: starts with lower and middle Eocene limestone layers with nummulite fossil and continues with the Alborz green layers. (Green tuffs) which is an indication of submarine volcanic, eruptions and were belongs to upper Eocene.
  • Quaternary period: The basaltic masses in the alluvial deposits which cover a big area in the region belong to this era.

Location within Alborz Range

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Map of central Alborz Peaks: 1 Alam-Kuh
  −25 to 500 m (−82 to 1,640 ft)
  500 to 1,500 m (1,600 to 4,900 ft)
  1,500 to 2,500 m (4,900 to 8,200 ft)
  2,500 to 3,500 m (8,200 to 11,500 ft)
  3,500 to 4,500 m (11,500 to 14,800 ft)
  4,500 to 5,610 m (14,760 to 18,410 ft)
2 Azad Kuh 3 Damavand
4 Do Berar 5 Do Khaharan
6 Ghal'eh Gardan 7 Gorg
8 Kholeno 9 Mehr Chal
10 Mishineh Marg 11 Naz
12 Shah Alborz 13 Sialan
14 Tochal 15 Varavašt
Rivers: 0
1 Alamut 2 Chalus
3 Do Hezar 4 Haraz
5 Jajrood 6 Karaj
7 Kojoor 8 Lar
9 Noor 10 Sardab
11 Seh Hazar 12 Shahrood
Cities: 1 Amol
2 Chalus 3 Karaj
Other: D Dizin
E Emamzadeh Hashem K Kandovan Tunnel
* Latyan Dam ** Lar Dam

See also

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References

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  1. ^ "Installed Capacity, Plants Site, Fuel Type, Date of Commissioning of Power Plants". Tavinar. Retrieved 19 January 2015.
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