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Underwater Refurbishment of The Draft Tube Gates and The Embedded Parts – COH and Hydro-Québec

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Location Rivière-des-Prairies, Quebec, Canada
Year of realization 2007 - 2008
Project value USD 30 Million


The “Rivière-des-Prairies” generating station is a run-of-the-river hydroelectric power station on the Rivière-des-Prairies between the islands of Jesus and Montreal, Quebec, Canada. Built in 1929, it is now managed and operated by Hydro-Québec. It has a generating capacity of 48 MW. The refurbishment of intake gates and draft tube gates was done in 2007 and 2008. 

PROGESYS offered its services for design and supervision activities regarding underwater refurbishment of draft tube gates and embedded parts.  


  • Provided design and calculations 
  • Provided detailed engineering and drawings 
  • Redacted fabrication and installation procedures 
  • Supervised fabrication and installation. 
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