Some Boulder County services returned in-person on a limited basis beginning June 1. Most services are still being offered virtually.

Resources are available for those impacted by COVID-19. For help, submit questions or call 720-776-0822 weekdays (9 a.m.-5 p.m.).

Fire Restrictions were updated on June 2 and remain in effect for western Boulder County. View the flyer and map for more details.

Logan Mill Bridge Reconstruction

Logan Mill Bridge Reconstruction


During the September 2013 flood even, the bridge on Logan Mill Road over Fourmile Creek was heavily damaged (photo below) as flood waters rushed downstream. After waters receded, a temporary culvert system was put in place to allow for access up Logan Mill Road off of Fourmile Canyon Drive (photo below).

Construction of the new bridge is underway.

The new bridge will be built south (downhill) of the current culverts that are used to access Logan Mill Road from Fourmile Canyon Drive. At least one-lane of Logan Mill will be available at all times in order to provide residential access to the homes in the area. There may be occasions when there are delays on Logan Mill, but we’ll do our best to keep those delays short (less than 15-minutes). Single-lane closures on Fourmile Canyon Drive will also be required from time-to-time in order to work on the bridge abutment and install the girders.

Project Details:

  • Working Hours = 8 a.m. to 4:30 p.m., Monday through Friday
    • Saturdays only when there is critical, time-sensitive work to complete like concrete pours
  • Travel Impacts
    • Expect delays of up-to 15-minutes entering and exiting Logan Mill from Fourmile Canyon Drive
    • Expect delays of up-to 15-minutes on Fourmile Canyon Drive through the construction zone
  • Bus Stops
    • Climb has moved approximately 300-feet uphill
    • BVSD will continue to stop in the vicinity
  • Emergency Access
    • Access for first responders will be maintained at all times. The culvert at Logan Mill will remain large enough to accommodate the Fire Departments largest truck

Plan Set

Contact Information:

  • Andrew Barth – Communications – email or 303-441-1032

The photo below shows the flood damaged bridge.

Logan Mill Road bridge damaged by 2013 flood
The photo below shows the temporary culverts currently in place.

Logan Mill Road temporary culverts in place since 2013 flood

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2525 13th Street
Boulder, CO 80304

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Boulder, CO 80306