Project
Cheliff Dam (Mostaganem - Algeria)
Customer
Algerian National Agency for Dams and Transfers, Ministry of Water Resources (Algeria)
Services (in partnership)
- Executive management assistance
- Financial management of the project
- Expertise on downstream flow conditions and the impacts on sludge disposal and operation of the spillway
- Hydraulic design
- Project preparation and bid packages (hydro-mechanical equipment, hydraulic transfer system, temporary diversion system, installation of desilting chambers, design of pumping station and related equipment)
- Bid package
- Supervision of construction work
- Definition of site management principles including associated automated systems
- Monitoring the installation of hydro-mechanical equipment
Construction
2005-2011
Cost
238 M€
Project Description
The Cheliff River diversion dam, consisting of a concrete structure and an embankment wing, is designed to supply the Kerrada dam with water as well as provide a drinking water treatment system. The dam therefore comprises a raw water intake, desilting and pumping system.
Dam:
- Maximum height: 48 m
- Drainage basin: 43,700 km2
- Annual flood: 840 m3/s
Spillway:
- Radial gates: 4 x 15 m x 11.5 m
- Check valves: 4 x 2.4 m x 7 m • Design flow: 6700 m3/s
Pumping Station:
- Treatment capacity - Kerrada dam: 9.5 m3/s
- Treatment capacity - Drinking water station: 6.5 m3/s
- Eight 50-m-diameter desilting chambers
- Capacity: 50 MVA
Cheliff Adduction:
8 km pipeline made from cast iron + DN 2000 steel, including a 1600 m3 regulation reservoir
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