Project header_Keeyask

Located on the lower Nelson River in Northern Manitoba, the Keeyask Generation Project provides enough renewable energy to power 400,000 homes.

In 2014, Manitoba Hydro contracted with BBE Hydro Constructors LP (BBE), a limited partnership between Barnard, Bechtel, and EllisDon, to construct the project’s civil work. At the start, BBE contributed to the project’s design and constructability through early contractor involvement (ECI) work. The team then worked through harsh winters to construct a new powerhouse, spillway, three zoned rockfill dams with till core, and two earthen dykes. The project was developed by the Keeyask Hydropower Limited Partnership, a collaborative effort between Manitoba and four Manitoba First Nations: the Tataskweyak Cree Nation, War Lake First Nation (acting as the Cree Nation Partners), York Factory First Nation, and Fox Lake First Nation. Between 2014 and 2020, 39% of BBE’s employees were from Indigenous communities.


Location: Gilliam, Manitoba, Canada

Owner: Manitoba Hydro on behalf of the Keeyask Hydropower Limited Partnership

Engineer: Hatch

Partners: Bechtel, Ellis Don

Contract Type: Design-Assist; Shared Risk


  • 695 MW powerhouse equipped with seven units
  • 60,692 m3 spillway with seven bays
  • 1,600-m-long center dam
  • 600-m-long south dam
  • 250-m-long north dam
  • 23 km of earthen dykes
  • 13 cofferdams, totaling 2.95 million m3 of material
  • 2,000-person construction camp required due to remote location

332, 641 m3 structural concrete

1.6 million m3 embankment excavation

2.2 million metric tonnes aggregate processing

Project footer_Keeyask