Snowboarders Trigger Avalanche That Buries Road in Colorado, Damages Infrastructure Two snowboarders triggered a small avalanche that released a larger, more powerful avalanche that buried an access road of the Eisenhower Johnson Memorial Tunnels in Colorado on Wednesday, March 25, 2020.ย Parts of the road were buried 20 feet deep. The Colorado Avalanche Information Center reports that the slide caused substantial damage to highway infrastructure. The CAIC said in a […] Avalanche SnowBrains | April 6, 2020 1 Comment