CO 7 Cherryvale Road to 28th Street Resurfacing
About the Project
Starting April 21, the Colorado Department of Transportation and contractor Asphalt Specialties Co. will begin resurfacing Colorado Highway 7 (Arapahoe Avenue) starting at Cherryvale Road and extending west to 28th Street in Boulder.
Work on this project is scheduled for completion in late December 2025.
The existing asphalt will be milled and overlayed with new asphalt. Milling removes the worn-out surface layer, and the fresh asphalt overlay restores the road's smoothness and improves safety. While work is in progress, erosion control measures will be in place to prevent sediment runoff and protect water resources during construction.
Work also includes Americans with Disabilities Act upgrades that include curb ramp installations. ADA curb ramps are a small but important part of making sidewalks, street crossings, and other pedestrian routes accessible to everyone.
Additionally, the City of Boulder will coordinate with CDOT to launch the East Arapahoe Bus and Turn Lanes Signing & Striping Project, which will convert underutilized right through-lanes into shared curbside lanes for buses and right-turning vehicles only, which will provide improved trip reliability for the existing bus service routes. This joint effort will help reduce costs, shorten construction timelines and lessen disruptions for the community.
The combined project between the City of Boulder and CDOT will provide improved ADA and safer connections to the corridor and bus service, as well as necessary safety and riding surface improvements for all modes utilizing the corridor. Partnering on these projects reduces the overall construction duration and impact on those who use the corridor.
Work this Week & Lane Closures for CO 7 Cherryvale Road to 28th Street
Project Facts
- Construction Cost: $5 Million
- Contractor: Asphalt Specialties Co.
- Timeline: April 2025 to December 2025
- Location: CO 7 (Arapahoe Avenue) between Cherryvale Road and 28th Street
- Nearest Town/City: Boulder
- Mile Point(s): MP 52.3 to MP 55.5
- County: Boulder

Project Benefits
- Milling removes the worn-out surface layer, and the fresh asphalt overlay restores the road's smoothness and improves safety
- Erosion control measures will prevent sediment runoff and protect water resources during construction
- ADA curb ramps are a small but an important part of making sidewalks, street crossings and other pedestrian routes accessible to everyone
- Business Access and Transit (BAT) lanes improve traffic flow and reduce travel time for buses and vehicles, while still allowing motorists to reach local businesses
Work Schedule
- Monday to Friday, from 7 a.m. to 7 pm
- The work schedule is weather-dependent and subject to change
Traffic Impacts
Motorists can expect the following impacts during the period of construction:
- Single-lane closures on CO 7/Arapahoe Avenue from Cherryvale Road to 28th Street
- Delays are expected to be up to 10 minutes during work hours
- Construction vehicles entering and exiting the work zone
- Refer to COtrip.org for real-time travel conditions and road closures