Yukon Mine Site Remediation: Summer Work Begins

Remediation work is scheduled to start this summer at the former Clinton Creek asbestos mine, situated approximately 65 kilometers northwest of Dawson City, Yukon. This initiative, detailed by Crown-Indigenous and Northern Affairs Canada, will span the next three years.

The primary focus areas are the Clinton Creek Channel and Hudgeon Lake. Efforts will include upgrading 1.4 kilometers of the channel to enhance water flow and stability, and lowering Hudgeon Lake's water level by 4.25 meters to reduce flood risk.

Testing of material from the Kilometer 63 quarry is underway to ensure its safety for use in the project. Mining and hauling operations are planned from June to October, coinciding with the closure of the George Black Ferry. The bridge at Forty Mile will also be upgraded in June.

Engineers aim to fix failing drop structures in the channel, which were part of an original system to divert water around waste rock slopes. These improvements will increase water flow capacity, bolster waste rock stability, and support fish passage by reducing the creek's gradient.

Lowering Hudgeon Lake is a key measure to mitigate the risk of a major flooding event from spring freshet, heavy rain, or seismic activity. The Tr'ondëk Hwëch'in First Nation is collaborating with the federal department to define long-term reclamation objectives for the site.

The First Nation emphasizes the importance of economic benefits from construction activities and ensuring the area becomes safe for citizens to reconnect with and utilize for traditional activities.