Khersan-3 Dam

Khersan-3 dam is an arch dam currently under construction on the Khersan River, a tributary of the Karun River, in Iran. When complete it will have an installed capacity of 400 MW. It is situated near Atashgah in Chaharmahal and Bakhtiari Province and is a complementary dam to Khersan project along with the proposed Khersan-1 and Khersan-2 Dams. Construction began in 2007 and it is expected to become operational in 2015.[2]

Khersan-3 Dam
Location of Khersan-3 Dam in Iran
Country	Iran
Location	Atashgah, Chaharmahal and Bakhtiari Province
Coordinates	31°14′52.51″N 50°58′34.79″E
Purpose	Power, flood control, regulation
Status	Under construction
Construction began	2007
Opening date	2015
Owner(s)	Iran Water and Power Resources Development Co.
Dam and spillways
Type of dam	Arch, double-curvature
Impounds	Khersan River
Height	195 m (640 ft)
Length	470 m (1,542 ft)
Width (crest)	6 m (20 ft)
Width (base)	40 m (131 ft)
Dam volume	1,100,000 m3 (1,438,746 cu yd)
Spillway type	Controlled
Spillway capacity	6,300 m3/s (220,000 cu ft/s)
Reservoir
Creates	Khersan-3 Reservoir
Total capacity	1,158,400,000 m3 (939,130 acre⋅ft)
Catchment area	7,733 km2 (2,986 sq mi)
Surface area	24.5 km2 (9 sq mi)
Maximum length	40 km (25 mi)
Maximum width	400 m (1,312 ft) (average)
Normal elevation	1,432 m (4,698 ft)
Power Station
Commission date	2015
Hydraulic head	177 m (581 ft) (design)
Turbines	4 x 100 MW Francis-type
Installed capacity	400 MW
Annual generation	1121 GWh [1]