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Closures & Construction

Construction-Related Travel Impacts

Boulder County Public Works manages the construction projects for roads, bridges, pathways, drainage improvements and trails. The projects listed on this page are related to flood recovery and regularly scheduled roadway maintenance.

Travel Impacts

County Road Projects

US 287 & Isabelle Road Intersection Safety Improvements Project

  • CLOSURE of Isabelle Road between N. 95th and US 287
  • Closure in place 24 hours a day, 7 days a week until the end of June, weather permitting
  • Residential traffic on Isabelle must come from N. 95th
  • No cars, bikes, or pedestrians
  • Project Hours are 7 a.m. to 7 p.m., Monday through Saturday
  • Impacts to US 287
    • Daytime, weekday lane closures and traffic shifts on US 287
    • Expect delays – Alternate routes advised
  • Project anticipated to last until August 2021
  • Project Website

2021 Gravel Road Reclamation Program

  • Numerous gravel roads will be reclaimed from April to August 2021
  • Work Hours = 6:30 a.m. to 4:30 p.m., Monday through Thursday
  • Travel on roads being reclaimed will be limited to residents and emergency responders during working hours
  • Learn more

71st Street Construction Project

  • Culvert installation, roadway, and multi-use path/trail improvements
  • January 2021 through June 2021
  • Expect travel delays due to daytime, weekday single-lane closures
    • Paving to take place starting June 4 – Expect longer delays
    • Traffic signal installed at Winchester Circle as entry/exit to Winchester will be one-way
  • Project Website

Thank you for following restrictions! We apologize for any inconvenience.

For more information about Boulder County road travel impacts, please contact – Andrew Barth – 303-441-1032

Projects Impacting Cycling

Thank you for following restrictions! We apologize for any inconvenience.

Project Contact – Andrew Barth – 303-441-1032

Non-County Projects

Related Links

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Public Works Department (formerly Transportation)

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2525 13th Street
Boulder, CO 80304

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P.O. Box 471
Boulder, CO 80306