The public is asked to stay off the Mamquam Road below Quest University as District of Squamish begins geotech assessment.
The gravel portion of Mamquam Road (east of Paco Road below Quest University) remains closed due to fractures along a 400-metre section of the road as a result of last week’s atmospheric river event.
A substantial landslide near the bottom of the road has blocked access.
The District engineering staff has retained a local geotechnical engineer to review the cause of the failure and assess slope stability and potential remediation options.
Barricades and prohibitive Do Not Enter signs have been installed to restrict public access, including by foot and bike.
“The public must stay off the road or out of any of the areas below the road while the geotechnical assessment is underway, as any slope failure poses extreme risk to public safety,” says District Director of Engineering Chris Wyckham. “We are closely monitoring the situation and will determine the appropriate next steps based on the geotechnical assessment.”
Tension cracks first appeared on the gravel portion of Mamquam Road, also known as the Mamquam-Ring Creek Road on November 16 as a result of heavy rainfall.
The District says it would continue to provide further updates and next steps as work progresses.