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Inlet and Outlet Gates at Niagara Falls Tunnel – COH, Strabag and Hydro-Ontario

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Location Niagara Falls, Ontario, Canada
Year of realization 2007 - 2013
Project value USD 1.6 Billion


The Niagara Tunnel Project was part of a series of major additions to the Sir Adam Beck hydroelectric generation complex in Niagara Falls, Ontario, Canada. Water delivered by the major new underground tunnel complements other upgrades to Sir Adam Beck’s generating complex, resulting in a significant increase in the efficient use of the Niagara River’s hydropower. The project’s new 12.7 meters (42 ft.) diameter, 10.2 kilometers (6.3 mi) long tunnel was officially placed into service on March 21st, 2013, to help increase the generating complex’s nameplate capacity by 150 megawatts. The extra power sufficiently supplied electricity to approximately 160,000 homes. 

Progesys offered its services for Design and Supervision activities, for the Inlet and Outlet Gates, the Embedded Parts, the Hoists, and the Support Structure. 


  • Provided design and calculations 
  • Provided detailed engineering and drawings 
  • Provided a redaction of fabrication and installation procedures 
  • Supervised the fabrication and installation. 
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