Arapahoe Avenue Reconstruction (15th to Broadway)
Street reconstruction work will start June 11, 2018.
The Arapahoe Avenue Reconstruction Project will provide much needed maintenance and improvements to all transportation modes to increase safety and comfort and to preserve this important thoroughfare. The project will also include improvements to the multimodal system and water utilities. The underpass on Arapahoe and 13th will also be reconstructed beginning this summer, to provide a safer, more accessible and less flood-prone underpass along the Boulder Creek Path.
Access to the Farmers Market, Boulder High School, all businesses and other facilities in the Civic Area will be maintained throughout the project. Access to special events, such as the Hanuman Festival and the Boulder Creek Hometown Festival, will also be coordinated with the city special events team and event planners.
Arapahoe Ave. Impacts
During construction, Arapahoe Avenue will be reduced to one westbound lane of travel from 15th to Broadway, with eastbound vehicles detoured to Canyon Boulevard. Pedestrian detours and transit stop closures or relocations, and transit detours will also be in effect. The reconstruction work has been scheduled to minimize impacts to school schedules and large events. However, the work will likely cause travel delays.
Construction from 14th to 15th streets is anticipated to be completed by the Boulder Valley School District first day of school, with the remaining street reconstruction to Broadway completed in the fall. Construction of the new underpass at Arapahoe and 13th will continue to early 2019.
Central Park Impacts
Construction materials will be staged and some of the construction will take place in Central Park. Areas will be marked off, and there will be detours for pedestrians and cyclists.
Check out Cone Zones for the latest updates on the Arapahoe Avenue Reconstruction project.
This is a major project that includes several components:
- Street, path and sidewalk reconstruction from 15th to Broadway to replace aging asphalt with concrete and improve multimodal facilities and drainage;
- Replacement of a storm sewer box culvert under 13th St. and the Smith-Goss irrigation ditch pipe along the south side of Arapahoe Ave., both of which are in deteriorated condition;
- Reconstruction of the bicycle and pedestrian underpass at 13th St. to improve line of sight, reduce flooding and bring it up to accessibility and city standards;
- Removal of 50 trees to allow for the utility and underpass work. New trees will be planted to replace those removed for the construction projects and additional landscaping will be completed near the adjacent areas.
$2.7 million in city transportation funds has been provided to complete the upcoming phase of the Arapahoe Avenue street reconstruction between 15th Street and Broadway. The completed phases of this project were funded by the 2011 voter-approved Capital Improvement Bond.
Funding for the new underpass at Arapahoe and 13th St. is provided in part by the 2014 Community, Culture and Safety Tax.
Sign Up to Receive Email Updates
To sign up to receive periodic email updates with project news, impacts and milestones, please provide your email address. The other information is optional.
Past Meetings & Events
The project has been presented to the community along with the Arapahoe Underpass project.
The deteriorated asphalt roadway along Arapahoe Avenue was reconstructed into concrete between Folsom and 15th streets, along with additional improvements to preserve and enhance this major travel corridor.
Construction began in June 2013 and was completed in fall 2014.
Melanie Sloan ● Transportation Division ● 303-441-3266● [email protected]
For the latest construction and traffic information, visit boulderconezones.net.