Pulp and Paper Canada

News Water & Chemicals
Catalyst Crofton to resume seasonal operation of Cowichan Lake weir in April

March 23, 2022  By Sukanya Ray Ghosh

Photo: Paper Excellence

Paper Excellence announced that Catalyst Crofton will resume the regular seasonal operation of the Cowichan Lake weir (dam). The weir regulates water flow out of Cowichan Lake.

When the weir is in operation, it gradually reduces water flow from the lake to the river. This allows for enough extra water to remain in the lake to achieve the target river flow during the dry summer months.

The provincial government sets the target river flow as per the guidance of fish and fish habitat stewards including Fisheries and Oceans Canada. Catalyst Crofton operates the weir as directed by the provincial government.


Once the weir is mechanically and electrically confirmed to be ready for another control season, the boat lock gates are lowered, and boater traffic must navigate from the lake and river with assistance from Boat Lock operator. While the weir boat lock is operated 24 hours per day during control season, boat passage through the locks is intended to be a daylight activity. Adjustments to river flow are also made mostly during the day shift.

The provincial government ensures that stream flows are maintained for all stakeholders by monitoring and regulating the water levels and flow releases of the Cowichan Lake.

Print this page


Stories continue below