Latyan Dam

Latyan Dam
Location	Tehran Province, Iran
Coordinates	35°47′23″N 51°41′43″E
Construction began	1963
Opening date	1967
Dam and spillways
Height	107 m
Length	450 m
Base width	99 m
Impounds	Jajrood River
Reservoir
Creates	95 Mm3
Bridge
Width	m

Latyan Dam (Persian: سد لتيان sad-de latyān) is a dam located less than 25 km from Tehran. It is one of the main sources of water for Tehran metropolitan region.

Geology

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.
• Tertiary 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

Map of central Alborz	Peaks:	1 `Alam Kūh
-25 to 500 m   500 to 1500 m   1500 to 2500 m   2500 to 3500 m   3500 to 4500 m   4500 to 5671 m	2 Āzād Kūh	3 Damāvand
	4 Do Berar	5 Do Khaharan
	6 Ghal`eh Gardan	7 Gorg
	8 Kholeno	9 Mehr Chal
	10 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

External links

• Profile at soil-water.com