Stage 1 Fire Restrictions for Unincorporated Douglas CountyContinue Reading

C-470 multi-modal trail grade separation at Yosemite

Updated January 2022

Project Overview

Detour RouteA new Douglas County trail improvement project began Dec. 13, 2021. Designed to improve safety along the trail, the project includes the installation of a pedestrian bridge with the extension of a multi-use trail/sidewalk on the north side of S. Yosemite Street and the C-470 off-ramp.

The current trail requires pedestrians and cyclists to cross at the busy intersection of Yosemite and C-470. With the construction of the new overpass, the trail will be rerouted over the intersection, creating a safer, more convenient connection for pedestrians and cyclists.  Additionally, the new pedestrian bridge will improve mobility by reducing congestion and traffic delays on Yosemite Street related to C-470 trail users interfacing with motorists.

Download a Fact Sheet to share


City of Lone Tree, Colorado Department of Transportation, DRCOG and Park Meadows Metro District.

The total project is estimated at $7 million. The County was selected to receive $2 million in federal funds through the DRCOG project selection process, and the remaining project costs are Douglas County’s responsibility.  The Park Meadows Metro District has agreed to contribute $100,000 towards the construction costs.

C470 Yosemite Detour RouteTraffic Impacts

  • During construction, the existing trail access will be closed. Pedestrians and cyclists will be detoured via Yosemite Street, Parkway Drive, and ultimately rejoin the C-470 Trail from both east and west directions (Click to enlarge the detour map to the right).
  • Motorists can expect intermittent single-lane traffic with flaggers assisting motorists through the work zone.
  • Normal work hours will be Monday through Thursday, 7  a.m. – 5 p.m., and Fridays, 7 a.m. – 2 p.m.  Occasional brief closures will be scheduled to allow crews safe passage through the work zone.
  • During the bridge construction, full lane and ramp closures will be necessary.

Lane Closures Jan. 20-21
The left lane of the westbound C-470 on-ramp will be closed on Thursday, Jan. 20 from 8:30 a.m. to 3 p.m. and Friday, Jan. 21 from 8:30 a.m. to 2 p.m.  This closure allows equipment and materials into the work area to begin work on the foundation of the new pedestrian bridge. Schedule changes may occur due to unforeseen circumstances such as material and workforce availability or weather events. Expect delays.  For more project information click here This project is expected to continue through November 2022.

Contact the Project

Project Hotline: 720-386-3803
Project Email:  [email protected]

Sign up to receive project information including lane closures by clicking here and choosing Road Work / Cone Zone information from the subscriber list.

Zak Dirt

Project Engineer
Neil Sarno