Escarpment Update #5

The City’s geotechnical consultants are closely monitoring the escarpment along Robert Service Way following movement over the last 48 hours.

Starting on the evening of April 24, tension cracks began to form as a result of thawing caused by warm weather. On April 25, there was a minor slide of less than 100 m³. Crews have also observed an acceleration of water seepage throughout the slope.

Thanks to the City’s comprehensive monitoring plan, crews were able to respond in real time and have implemented the response plan in order to mitigate the impact of any potential small slides. The existing jersey barriers have been relocated along Robert Service Way and crews are prepared to deploy a lock block wall for smaller slides should conditions deteriorate. In the event that the monitoring indicates a potential for a larger slide further mitigation measures including road and trail closures may be implemented.

Through the use of visual inspections, high-definition imagery, the slope scanner, and the proactive purchase and deployment of jersey barriers and lock blocks, the City is able to keep this important artery open. However, road and trail users should continue to exercise caution in the area and plan accordingly as conditions can change quickly.