Lar Dam

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Geographical Data
Lar Dam
Satellite image when water level is low
Impounds	Haraz River
Creates	960 M m³
Locale	Larijan, Amol, Iran
Length	1,150 m
Height	105 m
Width (at base)	800 m
Construction began	1974
Opening date	1982
Coordinates	35°53′17″N, 52°00′36″E

Lar Dam (Persian: سد لار sad-de lār) is a dam located in foot of Mount Damavand. It is one of the main sources of water for Tehran metropolitan region.

1 Construction
2 The Lake
3 Location in Central Alborz
4 External links

[edit] Construction

In the wake of the Tehran's water need increase, study and construction phases of an earth dam over the Lar river, in northeast of the city, on the elevated heights of the Kalanbasteh mountain, on the slope of Mount Damavand, in an area called Polour, at kilometer 65 of the Haraz Road (between Tehran and the city of Amol) started in 1974. The dam's construction work ended in 1981 and it started operation in 1984.

One of the aims for building the Lar dam was to supply part of Tehran's drinking water need; it was not possible then to operate the dam at its nominal capacity however, because of water seepage problem. Water stored in the dam's reservoir is transferred to the Kalan and Lavark power plants, a distance of 3 kilometers from the Latyan Dam's reservoir, through the 20 kilometer long Kalan tunnel (3 meters in size). After electricity generation, the water joins and feeds the Latyan dam's reservoir.

Uncontrolled growth and expansion of Tehran created such a situation that the existing water resources, ie, Karaj, Latyan and Lar dams and the deep wells, which were supposed to be exploited only in the mounts of peak water consumption, were no longer capable of meeting the city's water demand, so inevitable abstraction from ground resources started to increase in a manner that at present situation, the quantity of drilled deep wells has amounted to 230 rings. In fact, in 1997, 1998, 1999 and 2000, it had been orderly abstracted, 317, 289, 374 and 357 M m³ of water from groundwater resources of the city. [1]

[edit] The Lake

Image:Lar-lake.jpg

Lar Dam lake with Mount Damavand in the background

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This lake is at a distance of 84 km from Tehran and due to its proximity to Mount Damavand experiences a cool and pleasant climate as well as beautiful landscapes. The lake provides the scope for water sports such as swimming and skiing.

[edit] Location in Central Alborz

**Map of central Alborz**
-25m to 500m 500m to 1500m 1500m to 2500m 2500 to 3500m 3500m to 4500m 4500m to 5671m	Peaks:	1 `Alam Kūh
	2 Āzād Kūh	3 Damāvand
	4 Do Berar	5 Do Khaharan
	6 Ghal`eh Gardan	7 Kūh-e Gorg
	8 Kholeno	9 Mehr Chal
	10 Kūh-e Mīšīneh Marg	11 Naz
	12 Shah Alborz	13 Sīālān
	14 Tochal	15 Varavašt
	Rivers:	0
	1 Alamūt	2 Chālūs
	3 Do Hezār	4 Harāz
	5 Jājrūd	6 Karaj
	7 Kojūr	8 Lār
	9 Nūr	10 Sardāb
	11 Seh Hazār	12 Shāh Rūd
	Cities:	1 Āmol
	2 Chālūs	3 Karaj
	Other:	D Dīzīn
	E Emāmzādeh Hāšem	K Kandovān Tunnel
	* Latīān Dam	Lār Dam**