CDOT using explosives to trigger avalanches ahead of Independence Pass reopening

1 year ago 17

TWIN LAKES, Colo. (KDVR) — Colorado Department of Transportation is using explosives to help clear snow from Independence Pass ahead of its scheduled reopening at the end of May.  

On Tuesday, CDOT and the Colorado Avalanche Information Center, CAIC, paired up for the annual avalanche mitigation effort on the stretch of Highway 83 that connects Twin Lakes and Aspen. The pass is closed each winter due to multiple factors, including the risk of large avalanches. 

“The road runs through the track of the path so it doesn’t take a whole lot of snow rolling down the hill to hit that road,” CAIC Director Ethan Greene said. 

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The team uses a helicopter loaded with explosive devices dubbed “turkey bombs” that are dropped on steep slopes above the pass. CDOT says the explosives are much more powerful than they typically use for avalanche mitigation.

“We’re putting anywhere from 22 to 30 pounds of explosive payload per shot,” CDOT’s statewide Avalanche Coordinator Brian Gorsage said. “If we’re gonna pull out all the stops with the helicopter and all the folks it takes to do that, we’re gonna hit this slope with the biggest hammer we got.”

Each explosion is loud and ...

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