The high vertical cliff at the Barrier has long been debated regarding its potential for catastrophic collapse. Large-scale collapse of The Barrier is also extremely unlikely, but could potentially block the Cheakamus River. A blockage of this nature increases the possibility of a debris flow that could affect all of Paradise Valley, with the most intense impacts occurring near the District’s northern boundary. Despite public misconceptions, there is no scientific evidence that collapse of the Barrier could drain Garibaldi Lake or cause extreme flooding in downstream neighbourhoods along the Squamish River.
This hazard has been sensationalized in various media sources (Wikipedia, newspaper articles, youtube videos) which has compounded the common misconception. The more realistic hazard is that rockfall from the barrier could block the Cheakamus River which could then cause an outburst flood. Even this is a very low probability event and has been concluded to pose limited flood risk within District boundaries due to significant upstream attenuation (storage, smoothing out of peak flows). The consequences are much higher for areas immediately downstream of Rubble Creek.
January 22, 2021 at 2:11 PM
District of Squamish Wildlife Attractant Bylaw update aims to eliminate wildlife attractants through stricter guidelines and simplified language
The District of Squamish has updated its Wildlife Attractant Bylaw to help residents better understand and eliminate the root cause of...
January 21, 2021 at 11:51 AM
Waste less, save more: District of Squamish Council moves to freeze 2021 Solid Waste Utility fees for residents with small garbage totes
Squamish residents can now save on 2021 utility fees by making the switch to a small 35-gallon garbage tote size.
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