James Canyon Reconstruction

James Canyon Reconstruction

Anticipated Travel Conditions During Construction

  • The road will be reduced to 1 lane in multiple locations. In some spots, the lane closure will be in place 24-hours a day, seven days a week.
    • There will be no full-time closures of the entire road.
    • Delays are currently in the 15-20 minute range, but may be shorter depending on the work being undertaken.
  • Lane closures will be managed by flaggers and by traffic signals.
    • Traffic signals will be timed to allow the slowest traveler (usually cyclists) to safely pass through the construction zone.
    • Please do not run red lights. They will be enforced just like normal traffic lights by the Sheriff’s Office.
  • Working Hours
    • March through October – 7 a.m. to 6 p.m.
    • November through December – 8 a.m. to 4:30 p.m.
    • Monday through Friday – NO WEEKENDS
  • No work will take place during federal holidays (Memorial Day, 4th of July, Labor Day, Thanksgiving, Christmas, New Years, etc.)
  • Project expected to last through December 2018

Communication During Construction – How to stay informed

  • Weekly and as needed information will also be sent to the project listserv. Sign up today.
  • Information will be posted on the Jamestown, Bar K, and Ward QT websites.
  • Questions, comments and concerns can be directed to Andrew Barth at Boulder County Transportation


In September 2013, 17 inches of rain fell throughout Boulder County. One of the hardest hit areas was James Canyon. The rain and corresponding flooding destroyed much of the road through Jamestown and almost everything through James Canyon and permanently altered James Creek. Shortly after flood waters receded, Boulder County got to work and built an emergency access road into town to help get people some much needed relief and supplies.

Soon after the emergency road was built, the county returned and created a temporary “winter road” that allowed for access beyond high-clearance 4WD vehicles. This road remained in place until the summer of 2014 when a temporary asphalt surface was applied to the gravel sections of the roadway. The asphalt surface was applied so that area residents and service providers had a safe road to drive on while they completed their own flood recovery-related repairs and so that Boulder County and their engineering team could work on a permanent design for a roadway that would be safer for all travelers and one that would be resilient towards future flood events.

Project Schedule:

  • Construction Start Date = May 15, 2017
  • Anticipated End Date = Winter 2018

Latest Plans:
Construction-ready plans – Added Feb. 15, 2017

This set of plans is still subject to revision, but the designs are close to what the contractor will use to complete the project. The plan set has been broken down into pieces to make it easier to open/download.

Previous plan sets are available upon request

Previous Meetings:

  • Feb. 17, 2016 – Meeting with Jamestown Town Hall regarding 60% Phase Designs (available above) – [LINK]Presentation[/LINK]
  • Aug. 11, 2015 – Meeting to present 30% phase designs
    • Presentation
    • 30% plan set available upon request
  • Sept. 17, 2014 – Open House on Preliminary Designs using Aerial Photos
    • Meeting materials available upon request

Project Contacts:

  • Andrew Barth – Communications – 303-441-1032 or email
  • Colton Coughlin – Project Engineer – 720-564-2651 or email

Flood Damage Photos:

Flood damages James Canyon sustained during the 2013 event

Flood damages James Canyon sustained during the 2013 event

Flood damages James Canyon sustained during the 2013 event


Due to heavy large truck traffic, cyclists are encouraged to ride:

  • Before or after working hours (see information to the left)
  • All day on Saturday and Sunday


  • Monday
    • 8 to 11 a.m.
    • 6 to 10 p.m.
  • Tuesday & Wednesday
    • 8 to 10 a.m.
  • Thursday
    • 8 to 11 a.m.
    • 6 to 10 p.m.
  • Friday
    • 8 to 11 a.m.
    • 6 to 10 p.m.
  • Saturday
    • 9 a.m. to 10 p.m.
  • Sunday
    • 9 a.m. to 2 p.m.

Access to the Post Office will be maintained.

Contact Us

Transportation Department

Submit a question


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