Waneta Dam Expansion

Trail, BC

Operating Company:

Castlegar Ready Mix


Columbia Power Trust

General Contractor:

ASL JV (SNC Lavalin & Aecon Construction)

Date Completed:


Contract Value:


Project Value:


The Waneta Expansion Project has added generating capacity to the existing Waneta Dam south of Trail, with the construction of two infeed tunnels, a powerhouse and a tailrace.

Castlegar Ready Mix supplied all ready mix concrete and shotcrete for the construction of the new powerhouse from a portable concrete batch plant located a few kilometres from the job site. This job required over 71,000 m3 of high specification concrete and aggregates that were delivered over three years.

This project is characterized by a continuous high resource demand—of crew, equipment and aggregate in a very tight construction site. The project required two continuous pours of 1000 m3 of concrete. A further challenge that the project faced was the need to maintain temperature control of the delivered concrete within a tight temperature range, particularly with the heat and low ambient temperatures in summer and winter.

Project Details