CDOT deploys an emergency contract to repair a washed out slope next to northbound US 285 near Parmalee Gulch

Travel Advisory

May 19, 2023 - Denver Metro/Central Colorado

Jefferson County - Emergency contract work is underway to stabilize a slope that washed out from the recent heavy rains last Friday (May 12) next to a section of northbound US 285 north of Parmalee Gulch.

Construction Crews Conducting Emergency Repairs on US 285
Image: Contract crews place a large drill that places reinforcing steel bars under the roadway to stabilize the slope that was washed out.

Colorado Department of Transportation maintenance crews immediately responded to the wash out with temporary measures to further prevent damage, including a closure of the shoulder and right lane on northbound US 285 beginning Friday, May 12. CDOT secured a contract with GeoStabilization International that started work on Thursday, May 18 on a temporary repair to stabilize the ground below the roadway. The work requires a specialty contractor that can use equipment that sits at the roadway level and reaches down into the scoured area to install reinforcing bars into the slope below the roadway.

CDOT expects the temporary repair will be completed Friday, May 26. The schedule could be delayed depending on the weather and other factors. Until the repairs are complete, there will be a right lane closure on northbound US 285 near Parmalee Gulch. Crews will be working Monday through Saturday from 7 a.m. to 5 p.m.

This is considered a temporary repair. CDOT is starting the design process for a permanent repair which will take place later in the summer. Specific timeframes and details are not determined yet.

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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