US 85 Widening Project in Douglas County from Sedalia to Louviers

Work this Week

Week of October 25
  • Monday – Friday, 7:00 am to 5:00 pm, continued shoulder closures in both directions of US 85 from Sedalia to Titan Road for deer fencing. On Friday, from Sedalia to Airport Road there will be flagging operations for occasional northbound traffic stops to allow construction vehicles to enter and exit the highway.
  • No work scheduled for Saturday.

About the Project

The Colorado Department of Transportation and Castle Rock Construction Company, LLC plan to begin work on the US 85 widening project on July 6. A 2.5-mile stretch of the highway will be rebuilt and widened to two lanes in each direction between Sedalia and Louviers. When completed, there will be two lanes of travel in each direction from Littleton to Sedalia. The project will ease congestion, improve access to side streets and left turn lanes, improve drainage, enhance safety, add wildlife fencing and build a new bridge.

Project Facts

  • Cost: $23.7 million
  • Contractor: Castle Rock Construction Company of Colorado, LLC
  • Timeline: July 2020 - July 2022
  • Location: US-85 in Douglas County, beginning near Louviers and ends near Sedalia

US 85 Bridge Foundation

Photo taken by Cody Daigneault, CDOT Project Engineer of the bridge foundation installation.

Proposed Work Schedule

  • Work is scheduled to begin on July 6 and finish spring 2022. Most work will take place from 7 a.m. to 7 p.m. during the weekdays, with some night and weekend work possible.

Traffic Impacts

Motorists will begin to see construction activities on the east side of US 85.

  • There will continue to be one lane open in each direction during construction.
  • During the course of the project, there will be occasional lane closures that shift traffic to a single lane in each direction.
  • There will be shoulder closures at times.
  • There could be delays of 5 to 10 minutes.
  • The speed limit will be reduced to 45 mph through the work zone with possible reductions to 40 mph when flaggers are present.
  • Motorists are urged to heed the speed limit and drive carefully.
  • If you have questions or concerns or if you would like to be added to our public outreach contact list to receive construction updates, please contact us!

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