Stage 1 Fire Restrictions in effect for unincorporated areas of western Boulder County (map) (More…)

Boulder County COVID-19 status is at Level Clear | Vaccine locations and info available in English and Spanish.

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

  • Project Hours are 7 a.m. to 7 p.m., Monday through Saturday
  • Expect single-lane closures on Isabelle Road during working hours
  • 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

4th of July Road closed AUG. 3 for resurfacing work; No access to Hessie Trailhead during work

In order to safely and effectively resurface the gravel portion of 4th of July Road/CR 130, the roadway will need to be closed to in both directions between the Hessie Trailhead and Shelf Road/the road to Eldora ski area from 6 a.m. to 4:30 p.m. on Tuesday, Aug. 3. Access to residents of Eldora will be maintained. The hard closure will be located at the west side of Eldora where the pavement ends and gravel road begins, no one will be allowed beyond that point until work is complete. See a map. Boulder County Public Works Road Maintenance Division will be completing the work.

Due to an extremely confined work zone, no motor vehicles, bicycles, or pedestrians/hikers will be allowed through the actual construction area while work is being performed.

61st/63rd Street Milling and Paving starts July 12

  • 61st/63rd Street will see milling and paving work starting Monday, July 12
  • Work is anticipated to end by Friday, Aug. 13 weather permitting
  • Work Hours = 6:30 a.m. to 4:30 p.m., Monday through Thursday
  • Expect lane closures and associated travel delays during working hours
  • The roadway will be in a less-than-ideal condition during work, so please use caution.

71st Street Construction Project

  • Culvert installation, roadway, and multi-use path/trail improvements between Lookout Road and Winchester Circle
  • January 2021 through August 2021
  • Expect travel delays due to daytime, weekday single-lane closures
  • 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

Contact Us

Public Works Department (formerly Transportation)

Submit a request


2525 13th Street
Boulder, CO 80304

Map & Directions

Hours: 8 a.m. - 4:30 p.m. M-F

Mailing Address

P.O. Box 471
Boulder, CO 80306