Peace River Hydro Partners has been named as the preferred proponent for the Site C main civil works contract by BC Hydro. Peace River Hydro Partners include ACCIONA Infrastructure Canada Inc., Petrowest Corporation and Samsung C&T Canada Ltd.

The Site C project has been estimated at a value at $8.3 billion (CAD), making it one of the largest infrastructure projects underway in Canada. Main civil works is the largest single contract for construction on the Site C project. It includes the construction of an earthfill dam, two diversion tunnels, and a concrete foundation for the generating station and spillways. ACCIONA estimates the construction work will create over 8,000 person years of employment over the eight-year contract.