Skip navigation

High Line Canal Trail Underpasses – Colorado/Hampden

Currently, the High Line Canal Trail leaves pedestrians and people on bikes at Colorado Boulevard and Hampden Avenue, a busy intersection that can be intimidating to cross on foot or on a bike. This project will build two underpasses to reroute the trail under Colorado and Hampden to create a safer, more convenient connection for people walking and riding bikes. In addition, between the two underpasses, Denver will add a new, 10-foot wide multi-use trail along the north side of Hampden.


Project Materials

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

Before and After Design Concepts (PDF) 

Public Meetings

February 28, 2017

May 15, 2019



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

May 2020 Construction begins
2021 Construction complete

Proposed alignments: High Line Canal Trail at East Hampden Avenue

Project Status: Construction Procurement

Construction is expected to begin in May 2020.


John LaSala, Project Manager
Department of Transportation and Infrastructure