Al Massira Dam

The Al Massira Dam is a gravity dam located 70 kilometres (43 mi) south of Settat on the Oum Er-Rbia River in Settat Province, Morocco. Completed in 1979, the dam provides water for the irrigation of over 100,000 hectares (250,000 acres) of farmland in the Doukkala region. The dam's hydroelectric power plant also generates 221 gigawatt-hours (800 TJ) on average annually. The power station was commissioned in 1980. Just to the north of the dam is a rip rap saddle dam to support water elevation in the reservoir.[3] The dam's reservoir and wetlands were designated as a Ramsar site in 2005.[4]

Al Massira Dam
Location of Al Massira Dam in Morocco
Official nameBarrage Al Massira
Coordinates32°28′31″N 07°38′15″W
Opening date1979
Owner(s)Office National de L'Electricite (ONE)
Dam and spillways
Type of damGravity
ImpoundsOum Er-Rbia River
Height82 m (269 ft)
Length390 m (1,280 ft)
Dam volume354,000 m3 (12,500,000 cu ft)
Total capacity2,760×10^6 m3 (2,240,000 acre⋅ft)
Catchment area28,500 km2 (11,000 sq mi)
Surface area80 km2 (31 sq mi)
Power Station
Commission date1980
Turbines2 x 64 MW (86,000 hp) Francis-type
Installed capacity128 MW (172,000 hp)[1]
Annual generation221 GWh (800 TJ)
Official nameBarrage Al Massira
Designated15 January 2005
Reference no.1471[2]

See also


  1. "Al Massira Hydroelectric Power Project Morocco". Global Energy Observatory. Retrieved 23 August 2011.
  2. "Barrage Al Massira". Ramsar Sites Information Service. Retrieved 25 April 2018.
  3. "Al Massira" (in French). Secretariat D'etat Charge de L'eau et de L'environnement. Archived from the original on 9 October 2011. Retrieved 23 August 2011.
  4. "Morocco names 20 varied new Ramsar sites". The Ramsar Convention on Wetlands. 26 June 2005. Retrieved 23 August 2011.
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