US 85 work near Platteville will construct intersection safety improvements resurface highway

Travel Advisory

May 15, 2023 - Northwestern Colorado - Daily lane closures are expected from 7 a.m. to 5 p.m. through November.

Platteville – The Colorado Department of Transportation started making improvements to US Highway 85 between Colorado Highway 66 and CO 60 this week. Daily lane closures are expected from 7 a.m. to 5 p.m. through November.

Over three miles of northbound and southbound US 85 between CO 66 and CO 60 (Mile Points 250.5 – 254.0) will receive a new asphalt surface. The project will also extend the northbound US 85 left-turn lane at CO 60, construct intersection safety improvements at Marion Avenue, and upgrade signs and lane striping throughout the corridor.

A center median will be added at Marion Avenue to limit access to right-in, right-out on all approaches except northbound US 85 where left turns will still be possible onto Marion Avenue. During median construction, the northbound left-turn lane at Marion Avenue will also be closed.

Around 25,000 vehicles a day use this section of US 85 and will benefit from a smoother driving surface once the project is complete. Asphalt Specialties Company was awarded a $5.1 million contract to construct the improvements. US 85 will remain open during construction. Project completion is anticipated in November.

General work hours are Monday through Friday from 7 a.m. to 5 p.m. with occasional extended hours and weekend work. Lane closures and flaggers will be utilized for work activities. Once paving begins, traffic will be held at intersections and driveways while equipment passes through to ensure product quality and safe operations. Temporary rough riding surfaces may be present until paving is complete. Speed limit reductions and width restrictions will be in place as needed.

US 85 Platteville Resurfacing Project Location MapUS 85 Platteville Resurfacing Project Location Map

Project Information 

For additional information about this project, contact the project team.

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.
  • Stay Alert! Expect the unexpected.
  • Watch for workers. Drive with caution.
  • Don't change lanes unnecessarily.
  • Avoid using mobile devices such as phones while driving in work zones.
  • Turn on headlights so that workers and other drivers can see you.
  • Be especially alert at night while driving in work zones.
  • Expect delays, especially during peak travel times.
  • Allow ample space between you and the car in front of you.
  • Anticipate lane shifts and merge when directed to do so.
  • Be patient!

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