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Arapahoe Avenue Reconstruction (15th to Broadway)

The Arapahoe Avenue Reconstruction Project will provide much-needed maintenance and improvements to bike, pedestrian and car travel to increase safety and comfort and preserve this important thoroughfare. The project will also include improvements to water utilities. The underpass at Arapahoe Avenue and 13th Street is also being reconstructed to provide a safer, more accessible and less flood-prone underpass along the Boulder Creek Path.

Thank you for your patience during this project. For additional information about this project and other construction projects in the city, check out Cone Zones.

Travel Impacts 13th Street north of Arapahoe is currently closed, with access to 13th Street businesses off of 14th Street. The underpass near 13th and Arapahoe is closed with a detour to an on-street crossing near 13th St. to access the Boulder Creek Path.

13th Street

The intersection of 13th Street and Arapahoe Avenue is currently closed for utility work. It is anticipated to reopen by Oct. 27.  

Until then, vehicle access to 13th Street is available via a detour through the alley on the west side of 14th Street. Pedestrians and cyclists will be able to access these streets using signed detours and the temporary on-street crossings.

Multiuse Path Detours

The underpass at Arapahoe Avenue and 13th Street is closed, with a detour to an on-street crossing just north of 13th Street. The pedestrian-bike bridge over Boulder Creek south of Arapahoe Avenue has been removed. The underpass and bridge will be closed until early 2019, with detours in place.

Transit 

The JUMP bus is running its usual route along Arapahoe Avenue. There are no changes to transit routes or schedules as a result of this project at this time.

Central Park Impacts

Construction materials are being staged and some of the construction is taking place in Central Park. These areas are marked off, and there are detours for pedestrians and cyclists.

Anticipated Completion

Landscaping, curb and gutter work will continue through fall 2018. This may include vehicle lane shifts, pedestrian and bicycle detours and single-lane closures between 8:30 a.m. and 2:30 p.m.

Construction of the new underpass at Arapahoe Avenue and 13th Street will continue into early 2019, resulting in periodic closures and detours.

Access to Businesses, Farmers Market and Central Park

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 will also be coordinated with the city special events team and event planners.

Project Details

This is a major project that includes several components:

  • Street, path and sidewalk reconstruction from 15th Street to Broadway to replace aging asphalt with concrete and improve multimodal facilities and drainage. Street reconstruction is substantially completed as of Aug. 14, 2018. Path and sidewalk reconstruction will continue.
  • Replacement of a storm sewer box culvert under 13th Street and the Smith-Goss irrigation ditch pipe along the south side of Arapahoe Avenue, both of which are in deteriorated condition.
  • Reconstruction of the bicycle and pedestrian underpass at 13th Street 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.

Funding

$2.7 million in city transportation funds has been provided to complete this 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 Avenue and 13th Street is provided in part by the 2014 Community, Culture and Safety Tax.

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Contact

For more information, contact:

Melanie Sloan ● Transportation Division ● 303-441-3266● [email protected]

or Comment on the Arapahoe Avenue Reconstruction Project.

Arapahoe Avenue Reconstruction, 13th to 15th Streets (Before and After)

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