Biking, walking trails could see benefits from proposed infrastructure bill and last updated 2021-07-02 17:16:25-04 Scot Grossman and his team are finishing touches on this brand new, nearly two-mile stretch of trail that curves along Clear Creek Canyon in Colorado. âItâs 65 miles, 5,600 vertical feet, going through multiple jurisdictions along the way. The biggest link to that 65 miles is Clear Creek Canyon, which weâre in right now,â Scot Grossman, the projects team supervisor at Jefferson County Open Space, said. By the end of August, this part of the trail will be open for walking and biking. âWe finished about three miles in 2017; this is a mile and three quarters right now. We have funding for another three and a half miles, which will leave roughly a five-mile gap, and that's really where that federal money comes in,â Grossman said.