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High Line Canal Trail Underpasses – Colorado/Hampden


This project will provide a continuous multi-use trail bypassing the busy intersection of Hampden Avenue and Colorado Boulevard by building two underpasses beneath these two major arterials. This will improve the connection of the High Line Canal Trail in Denver and neighboring areas, creating a safer environment for pedestrians and cyclists. 

Project Materials

About the National Environmental Policy Act (NEPA) Process (PDF)

Before and After Design Concepts (PDF) 

before and after renderings: preview before and after renderings: preview

Public Meetings

February 28, 2017



1970 Denver Water opens trail for recreational use
2012–2014 Feasibility Study adopted by High Line Canal Working Group, which recommends pedestrian underpasses at Hampden and Colorado
Fall 2016 Design/NEPA (environmental) begins
February 2017 *Current status*
30% design complete
Mid-2018 Final design complete
(following NEPA environmental approval)
Late 2018 Construction begins
2019 Construction complete

Proposed alignments: High Line Canal Trail at East Hampden Avenue

Project Status: Design

This project is currently in the design phase. A final design is expected to be completed in 2018. Construction would begin in 2018 and continue through 2019.


John LaSala, Denver Public Works
Project Manager