Colorado mudslides wreak havoc on major transportation route

DENVER (AP) — As ominous storm clouds gathered in western Colorado over a large area blackened by a recent wildfire, torrential rain fell and the charred land stripped of vegetation gave way, sending a rush of mud and boulders tumbling down steep canyon walls and onto a major highway.

The July 29 mudslides stranded more than 100 people in their vehicles overnight and caused extensive damage that closed Interstate 70, capping several weeks of perilous conditions in a scenic canyon carved through the mountains by the Colorado River.

It marked the latest in a string of closures over the past two years for an area that also serves as a key transportation corridor between the Rocky Mountains and the West Coast. Each forced long detours for semitrailers that deliver fuel and food, and inflicted economic pain on businesses that cater to tourists in the popular summer destination of Glenwood Springs.

The closures illustrate the kind of damage scientists have long warned can follow wildfires made worse by climate change: dangerous mudslides caused by rain in burn-scarred terrain. Though no injuries were reported, such slides have caused deaths and destruction in recent years in California and other parts of the U.S. West.

Those who live and work in the Glenwood Canyon area have been adjusting to the inconveniences of closures for years, but mudslides have become more frequent and intense since the Grizzly Creek Fire scorched about 50 square miles (130 square kilometers) last summer.

Transportation officials have closed a 46-mile (74-kilometer) stretch of the interstate and are telling motorists traveling between Denver and Glenwood Springs, on the west end of the canyon, to take another route that adds about 250 miles (402 kilometers) to the trip. Meanwhile, long-haul truckers have been advised to detour north onto...