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High Line Canal Trail Underpass – Mississippi/Parker


This project will provide a continuous multi-use trail bypassing the busy intersection of Mississippi Avenue and Parker Road by building an underpass beneath the road. The new underpass will eliminate Parker Road as a barrier, significantly improving the safety and experience of the High Line Canal Trail pedestrians and cyclists. Users currently experience long delays of up to 120 seconds at the Mississippi Avenue and Parker Road intersection. The new underpass will also create a quicker connection, while enhancing traffic operations.

Valentia Street: New High-Comfort Bikeway

To accommodate bicycle travel and improve connections during construction, new on-street bike facilities will be installed on Valentia Street, from E Mississippi Avenue to Fairmount Drive. The street will be reconfigured with one travel lane and a buffered bike lane in both directions. 

Design for the bike facility was completed in summer 2019 and installation is expected in Fall 2019, so alternate access is in place when construction begins at the Mississippi/Parker underpass. 

Project Timeline

Project schedule graphic from 30 percent design completed, public meetings in 2018, final design and construction

Project Status: Design

Final designs were completed in summer 2019. Construction procurement is underway and construction is expected to begin early fall 2020.

Open House #2 – January 16, 2019

Public Meeting Boards (PDF)

Open House #1 — May 15, 2018

Public Meeting Boards (PDF)

2014 Feasibility Study – pages 17-22

Go Speer Leetsdale Study — this project will use the 2017 Denver Public Works mobility study as a basis for decisions, though it understands the planning is in the range of 10-20 years out


Project Manager: Lisa Hilt
Department of Transportation and Infrastructure