Kouhrang 1 Dam

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Kouhrang 1 Dam
Koohrang 2.jpg
Kouhrang Dam and Tunnel 1
Kouhrang 1 Dam is located in Iran
Kouhrang 1 Dam
Location of Kouhrang 1 Dam in Iran
Country Iran
Location Chelgard
Coordinates 32°26′10.97″N 50°06′04.48″E / 32.4363806°N 50.1012444°E / 32.4363806; 50.1012444Coordinates: 32°26′10.97″N 50°06′04.48″E / 32.4363806°N 50.1012444°E / 32.4363806; 50.1012444
Purpose Water supply
Status Operational
Construction began 1948
Opening date 1954
Dam and spillways
Type of dam Gravity, masonry
Impounds Kouhrang River
Height 10 m (33 ft)
Length 70 m (230 ft)

The Kouhrang 1 Dam is a masonry gravity dam on the Kouhrang River about 4 km (2.5 mi) southwest of Chelgard in Chaharmahal and Bakhtiari Province, Iran. The primary purpose of the dam is to divert up to 320,000,000 m3 (260,000 acre⋅ft) of water annually via the 2.8 km (1.7 mi) long Kouhrang 1 Tunnel to the Zayandeh River to the east where it would help supply cities like Isfahan with water. Since the era of Shah Abbas I, attempts had been made to diver the Kouhrang to the Zayandeh. Eventually, efforts by Alexander Gibb between 1948 and 1954 led to the completion of the Kouhrang 1 Dam and Tunnel.[1][2][3]

See also[edit]

  • Kouhrang 2 Dam – downstream, feeds water into the Kouhrang 2 tunnel
  • Kouhrang 3 Dam – under construction downstream, feeds water into the Kouhrang 3 tunnel


  1. ^ "Transfer of Koohrang Valley water to Zayandehrood Valley (Koohrang 3 Tunnel)" (in Persian). Iran Ministry of Energy. Retrieved 27 January 2014. 
  2. ^ "Engineering geological characteristics of the site Kourhang 3 with emphasis on its injectivity" (in Persian). Isfahan University. Retrieved 25 January 2014. 
  3. ^ "Dam and tunnel projects in operation" (in Persian). Esfahan Regional Water Company. Retrieved 28 January 2014.