CO 42 Underpass Louisville, Colorado

In expanding the city’s extensive trail system to regional transit and developing neighborhood, the CO 42 Underpass provides a safe and user-friendly grade-separated crossing. A concrete box culvert as well as new sidewalk/trail connections and utility relocation were included in the project. In leading the design, Otak also provided project management services during the construction phase.

A User-Friendly Crossing to Increase Active Transportation Connectivity

After completing an Open Space and Trails Wayfinding project – which also led to the McCaslin Boulevard Underpass – identified improvements to the Lake to Lake Trail, the CO 42 pedestrian underpass represents one of several investments by the city in transportation and supports its goal of safe traveling conditions for pedestrians and motorists. By strengthening the city’s approximately 32-mile trail network with better connectivity, the underpass encourages active transportation with more walking, running, and cycling in the community. The construction of a concrete box culvert running underneath CO 42, along with the relocation of several utilities and the Goodhue Ditch, created a pedestrian thoroughfare that closes an important gap in the Lake to Lake Trail.