Burn Scar Flooding Crisis
Colorado Burn Scars Trigger Flash Floods and Mudslides, Damaging Homes and Closing Mountain Pass
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Flash flooding and mudslides have struck Colorado mountain communities still recovering from recent wildfires, damaging at least eight homes and forcing evacuations, according to Denver Post. The disasters stem from the Aspen Acres and Gold Mountain burn scars, where destroyed vegetation leaves soil unable to absorb rainwater.
U.S. 550 over Red Mountain Pass — the main highway linking Ouray and Silverton — remained closed Thursday night and was expected to stay shut through Friday, Greeley Tribune reported. Crews worked to clear at least eight separate mud and rock slides blocking the road.
Beulah Homes Damaged as Custer County Orders Evacuations
At least eight homes in Beulah were damaged by flooding, Denver Post reported. Officials in Custer County ordered mandatory evacuations due to dangerous road conditions. Residents were told to leave until emergency crews could confirm it was safe to return.
The flooding hit communities that had only recently dealt with wildfire destruction. Recovery efforts were disrupted almost immediately as heavy rain moved through the region, turning already-scarred land into a threat of its own, according to Journal-Advocate.
Red Mountain Pass Blocked by Eight Separate Slides
U.S. 550 over Red Mountain Pass closed after at least eight mud and rock slides covered the roadway, Estes Park Trail-Gazette reported. The pass is the only direct highway connecting the towns of Ouray and Silverton. Crews worked through the night but could not reopen it by Thursday evening.
The closure was expected to last through Friday at minimum. Officials did not give a specific reopening time. Drivers were urged to find alternate routes, though options in the rugged San Juan Mountains are limited, according to Daily Camera.
Why Burn Scars Make Floods Far More Dangerous
Wildfires destroy the plants and grasses that normally soak up rainwater. They also bake the soil into a hard, water-repellent layer. Rain that falls on a burn scar runs off almost immediately instead of soaking in, Greeley Tribune reported. This turns even moderate rain into a flash flood risk.
The Aspen Acres and Gold Mountain burn scars created exactly these conditions. Communities near those scars faced flooding far worse than the rainfall alone would normally cause. Experts say burn scar flooding can remain a danger for several years after a fire, until vegetation fully grows back, according to Denver Post.
Colorado Mountain Towns Hit Twice in One Season
The floods came as a painful second blow to communities already dealing with wildfire damage. Residents who survived the fires now face wrecked homes and blocked roads from flooding, Journal-Advocate reported. Emergency crews were stretched thin responding to multiple incidents across the region.
Officials warned that the risk is not over. More rain in the forecast could trigger additional slides along burn scar areas. Authorities asked residents near known burn scars to stay alert and be ready to evacuate quickly if conditions worsen, according to Daily Camera.
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