CO 119 & CO 7 Resurfacing
About the Project
The Colorado Department of Transportation and prime contractor, Brannan Sand and Gravel, will be performing an asphalt rehabilitation project on CO Highway 119 (Boulder Canyon Drive) and CO Highway 7 (Canyon Boulevard) within the City and County of Boulder.
For the first phase of work, crews will be using a mill and overlay process to resurface the eastern half of the project zone along CO 7 (Canyon Boulevard) from Broadway to 28th Street (Mile Point 49.5 to MP 50.6). The second phase will focus on CO 119 (Boulder Canyon Road) from Broadway west toward the start of Boulder Canyon (MP 40.7 to 41.9).
This phase will require a total roadway reconstruction including:
- The full depth removal of existing asphalt
- Subgrade reconditioning
- Installation of new asphalt
Additional operations will include:
- Miscellaneous sidewalk
- Curb and gutter
- Concrete curb ramp repairs
The project team will also install new sections of guardrail and carry out final restoration landscaping around the entirety of the project zone.
Work this Week & Lane Closures
Project Facts
- Construction Cost: $4.6 million
- Contractor: Brannan Sand and Gravel Co.
- Timeline: May 2025 to August 2025
- Location: CO 119 and CO 7
- Nearest Town/City: Boulder
- Mile Point(s): MP 40.7 to MP 41.9
- County: Boulder
Project Benefits
The project will provide critical upgrades for motorists, including:
- Prolonging the life of the roadway surface for years to come
- The asphalt rehabilitation will boast safer and smoother travel paths for drivers
- Concrete repairs will offer more accessible routes for multimodal users
Work Schedule
- The project is anticipated to begin in early May and continue into the middle of August
- For the month of May, crews will be working during nighttime hours from 6:30 p.m. to 6 a.m., Sunday night through Friday morning
- From the end of May through August, crews will be primarily working during the day from 7 a.m. to 7 p.m., Monday through Saturday
- Some intermittent nightwork may take place throughout the summer
Traffic Impacts
- Starting Sunday, May 4, and continuing for one week:
- Drivers can anticipate concrete sidewalk upgrades and utility relocations through the entirety of the work zone along both CO 119 and CO 7
- During this time, there will be single alternating lane closures in each direction during nighttime hours
- For the following two weeks leading into Memorial Day Weekend:
- Drivers can anticipate nighttime milling and paving operations on CO 7 from 28th Street to Broadway
- During this time, there will be single and double lane closures with one through-lane of travel open in both directions
- From the end of May through August:
- Work will shift to CO 119 from Broadway to the start of Boulder Canyon
- Drivers can expect semi-permanent lane closures with traffic reduced to one lane in each direction
- Some closures will remain in place for several weeks at a time
- From Arapahoe Avenue to the west end of the project zone:
- There will be a brief period where the two-lane road is reduced to one lane
- There will be a temporary traffic signal in place to assist drivers through the closure
- Depending on the location and phase of construction, some side street access will be closed from CO 119 with detour routes in place
- Business driveway access may be limited in certain construction phases, however, the project team will work to maintain an alternate point of entry at all times
- While crews work on concrete sidewalk and ramp upgrades, there will be temporary pedestrian closures and detour routes. Please follow all signage on-site to navigate around pedestrian closures
- Refer to COtrip.org for real-time travel conditions and road closures
