La Romaine 4 – Power Station Excavation

Delivery mode
Lump Sum
Havre-Saint-Pierre, QC, CA
Year built
Hydro-Québec | La Romaine

Power Station Excavation

As soon as the mandate for the excavation of the power plant for the La Romaine 4 hydroelectric project was granted, we deployed more than 150 employees on site to start the work.

The excavation and transportation of materials were carried out in the first 30 days, at a rate of six days per week and two teams per day.

As per our usual method, the work was performed under our own forces, and included the following:

  • Drilling.
  • Blasting.
  • Pre-cutting.
  • Consolidation.

Although the geometry of the plant is narrow, we optimized the execution of the work and were able to drill and blast over 32,000 m3 of rock per week on average.

Also, although the deadlines were very tight, we completed the mandate within the timeline stipulated by the client.

Our Challenges

Isolated Worksite

Our worksite was located approximately 175 km from the nearest city, on the North Shore of Quebec.

Tight Schedule

Despite harsh winter conditions, continuous year-round work and an earlier-than-expected start to the project, we met our tight deadlines.

Coordinating Multiple Disciplines

Our mandate was to coordinate many disciplines simultaneously: overburden removal, rock excavation, concreting work, road construction, sedimentation pond construction and stream realignment.

The Site in Figures

490,000 m3

of rock excavation.

1,040 m3

of concrete.