Two-Month Closure of Willow Creek Trail at C-470 Starts March 26

March 19, 2018 -

From Monday, March 26 through Monday, May 28, CDOT will close northbound and southbound Willow Creek Trail at C-470 as crews start drainage work and trail-widening construction as part of the C-470 Express Lanes project.

  • Southbound Willow Creek Trail detour:
    Take C-470 trail west to Acres Green Drive, abd turn left. Take Acres Green Drive to Park Meadows Drive and turn left, then continue to Willow Creek Trail south.

  • Northbound Yosemite detour:
    Take Park Meadows Drive west to Acres Green Drive, and turn right. Take Acres Green Drive to C-470 trail and take the trail east, then merge onto Willow Creek Trail north.
  • Detours are approximately one mile.
  • Follow detour signs accordingly and go slow for the cone zone.
  • Construction activities are weather dependent and the schedule is subject to change.
Willow Trail

For motorists on C-470, courtesy patrol is provided Monday through Friday from 6-9 a.m. and 3:30-6:30 p.m. to assist disabled vehicles at no cost to the vehicle operator.

More than 100,000 motorists currently use this segment of C-470 each day with volumes projected to increase 40 percent by 2035. Construction is scheduled for completion in spring 2019.

Project Info

The $276 million C-470 Express Lanes project will increase mobility and user choice along 12.5 miles between I-25 and Wadsworth Boulevard. Crews will add two Express Lanes on westbound C-470, from I-25 to Colorado Boulevard, and one Express Lane from Colorado Boulevard to Wadsworth. They also will add an Express Lane on eastbound C-470, between I-25 and Wadsworth Boulevard.

Crews will fully reconstruct existing pavement; add auxiliary lanes at selected locations; improve on- and off-ramps; realign substandard curves; widen existing bridges; replace the bridges over the South Platte River; install tolling equipment; and build new C-470 trail underpasses at Colorado and Quebec.

When complete, the improvements will give motorists the option of using the Express Lanes on C-470 for a faster, more reliable commute in exchange for paying a toll. Or, they may drive the general purpose lanes for free.

About Express Lanes

Express Lanes increase roadway capacity and help to manage congestion on the highways. The use of toll pricing during peak travel times provides an option for travelers, reduces delays, manages congestion and maintains reliable travel times. HOV3/Express Lanes currently are open from Downtown Denver to 120th Avenue on North I-25 and, US 36 from Denver to Boulder and on the I-70 Mountain Express Lane.