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Open Spaces News

Posted on: February 2, 2022

Now open: New trail underpass at Parker and Mississippi

Completed underpass trail

The High Line Canal Trail Underpass at Parker Road and Mississippi Avenue is now open to the public! This partnership with Arapahoe County Open Spaces and the City and County of Denver’s Department of Transportation & Infrastructure built this new regional trail connection to offer users a much safer alternative to the previous trail, which forced pedestrians and cyclists to cross at the busy intersection of Mississippi and Parker.

The new underpass is the second of two major underpass projects recently completed along the High Line Canal Trail. Two underpasses at Hampden/Colorado opened to the public in June 2021 and received accolades from the community for improving trail safety, connectivity, and enjoyment of the High Line Canal Trail.

The regional trail connection projects are funded in part by the Arapahoe County Open Space Sales and Use Tax. Partners on the Parker/Mississippi Underpass project include the City and County of Denver, Colorado Department of Transportation, Arapahoe County Open Spaces and Public Works & Development Departments, and the High Line Canal Conservancy. 

A grand opening celebration will be scheduled once the permanent railing is installed (a temporary railing has been installed along the trail on the south side of Parker Road to allow the trail to open sooner than anticipated). The public’s patience and cooperation during construction has been greatly appreciated. For regular updates and more information on this project, visit http://bit.ly/ParkerandMissUnderpass.

Underpass trail under constructionUnderpass trail under construction
Completed underpass trailCompleted underpass trail

  Photo credit: Arapahoe County Open Spaces (construction), City and County of Denver (completed project)

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