Peaks to Plains Trail Design

Clear Creek Canyon

Stream Design was selected by both Jefferson and Clear Creek Counties in Colorado as part of a multi-disciplinary team to design and construct (design-build) the first segment of the Peak to Plains trail in beautiful Clear Creek Canyon. This six-mile paved, multipurpose trail connects the Mayhem Gulch trailhead in Jefferson County to the area near Tunnel No. 6 in Clear Creek County, traveling through rugged canyon terrain, and requiring extensive retaining walls, bridges, and bridge underpasses. The trail provides unmatched recreational opportunities for cyclists, runners, hikers, river runners, anglers, climbers and outdoor enthusiasts in this spectacular landscape. Project challenges include the narrow and steep canyon terrain, a river with highly variable flow and flood depth, a very busy state highway (US 6) adjacent to the river, the presence of endangered species (Preble’s Mouse) and geological hazards (rock fall & landslides). In addition, the team was tasked with integrating the new improvements in a manner that preserves the existing canyon resource and experience. For this project Stream Design provided a variety of services including trail layout, revegetation design (including Preble’s Mouse habitat mitigation), aesthetic design, assistance with permitting, and visual simulations of proposed solutions, which have included trail sections on a historic railroad bed, a “trail viaduct” and underpass and a tunnel adjacent to an existing highway bridge.