BOULDER COUNTY, Colo. (CBS4)- Strong storms and heavy rain washed debris into the Fourmile Canyon area where the Fourmile fire burned 6,000 acres last fall. The canyon was closed between 5900 and 8000 in the Wall Street area Thursday at about 8 p.m.
That debris measures up to six feet deep in some areas. It contains branches, rocks and mud. The debris field is about 100 yards long.
Crews started cleanup on the debris field, but there is no estimate on when the canyon will reopen. No homes were damaged.
Rehabilitation efforts were launched in the spring to keep runoff in check.
People living in the Fourmile Fire burn area were under a flash flood warning Thursday at about 6 p.m. because of severe storms bringing heavy rain to the canyon.
The Fourmile fire burned more than 6,000 acres and destroyed 169 homes in September 2010, the most destructive fire in Colorado’s history.