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Algeria, Derivation plants and Transfers El Harrach to Douéra
Field of Activity: Water Resources

Algeria, Derivation plants and Transfers El Harrach to Douéra

The system is the core of the project to develop the irrigation perimeters for the central Mitidja plain covering 17,180 ha and includes recovering of water from Oued Harrach and filling up the Douéra dam.

Other positive impacts resulting from the project are valorization of the water resources by infiltrating Mitidja’s ground water, possibility of transfer for West Alger’s water supply and job creation.

Services

  • Revision of the conceptual design
  • Modification of the study
  • Technical Assistance for the start-up operations of the sites
  • Site supervision and project follow-up
  • Checking and approval of the company’s final design (civil engineering and equipment)
  • Assistance in testing and tentative acceptance procedures
  • Preparation of the operation manual and of the research study
  • Establishing the concessionary file

Technical Data

  • Diversion threshold of 75 m long effective ridge: 1065 l/s
  • Double intake: 2 x 50 m
  • Grit chamber including 2 tanks: L= 390 m, W=22.5 m
  • Equalizing reservoir linked to the end plant: V=2,500 m³
  • Pipeline: L=24.5 km (12 km gravity, 12.5 km pump back), DN 2000
  • Pumping stations: Q=8 m³/s, H=87 m, DR1, Q=1.9 m³/s, H=29 m
  • Equalizing reservoir: V=750 m³
Project Facts
Location Mitidja plain, Algeria
Client Office National de l‘Irrigation et Drainage, Algeria
Service Period 2006 - 2011
Project Cost 60 million EUR

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