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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. 


Public Meeting — May 15, 2019

Wednesday, May 15 
6:30–7:30 pm 
Temple Sinai, 3509 South Glencoe Street

The community is invited to view the underpass designs at Hampden and Colorado Boulevard. This safety enhancement will alleviate the need for trail users to interface with traffic at the busy intersection. The open house will enable the community, trail, and park users to discuss the vision with the project team. Designers, City and County of Denver, Cherry Hills Village and Arapahoe County representatives will be on hand to discuss the project, answer any questions and gather community input.

Map & directions

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
2014–2015 DRCOG TIP (funding) application and award
Fall 2016 Design/NEPA (environmental) begins
February 2017 30% design complete
February 2017–January 2019 Agency coordination
April 2019

90% design complete

May 2019

*Current status* 
Open House #2
Final design complete

Early 2020 Construction begins
2021 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 Fall 2019. 


John LaSala, Denver Public Works
Project Manager