From All Wet: The Colorado Water Blog (Allen Best):
Dave Holm called Clear Creek “perhaps the hardest working river in Colorado,” and to back up that statement he noted that it provides water for 400,000 people and has the second most numbers of rafters in Colorado.
As for fish? Well, not so good. “It’s a rough and tough stream, and it’s tough on fish,” he said at a March 20 presentation before the Colorado Renewable Energy Society. “They really get beat up.”
Holm directs the Clear Creek Watershed Foundation, which was set up in 1990. He explained that after just a handful of people at the first meeting, 100 people were affiliated with the group by 1994.
The foundation seeks to clean up and improve Clear Creek, no small task. It was the site of Colorado’s first industrial-scale mining, first placer operations and then tunneling. This occurred at Central City, on the north fork of the creek, and also at Idaho Springs. Other mining towns in the drainage include Black Hawk, Georgetown, and Silver Plume…
The foundation has done 80 projects altogether, but the creek still has major troubles. Interstate 70 probably has the “biggest physical impact.” The creek has been channelized to make roof for the four-way highway, creating what amounts to a “rip-rap gulley.”
Holm also described how the doctrine of prior appropriation benefits the creek. “Colorado’s—rococo comes to mind—legal framework for administering water rights,” he said. But that first-in-right means that most of the water in Clear Creek gets left there until far downstream, where it issues from the foothills into the piedmont of the Front Range.
More Clear Creek watershed coverage here.