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Lone Tree Overpass Project
Lone Tree Overpass Project
Improving mobility and safety with a new north-south roadway connection extending Lone Tree Road between Butler Avenue to the south and Route 66 to the north.
Preliminary Overpass Design & Proposed Improvements
The Lone Tree Corridor Project will begin construction on Tuesday, Feb. 18.
Bicycle, pedestrian, and vehicular traffic will encounter detours as construction proceeds. Traffic on Butler Avenue and Lone Tree Road will be reduced to one lane each direction during construction. Traffic delays are anticipated.
To view the construction notice and planned detour maps, click here.
View the latest Lone Tree Overpass fact sheet for an update on the project and next steps, including the proposed phases of construction. A public meeting to discuss construction activities is planned for early 2024.
The project team is currently working on final design completion with agencies and stakeholders. Design is anticipated to be complete by end of 2023. The public will continue to see field activities including utility locating and demolition of structures through the end of the year. A public meeting to discuss construction activities will be planned for early 2024.
The City of Flagstaff will be holding two public meetings to provide updates of the design and the Economic Impact Study and get input on project details including opportunities for public art, landscaping, and spaces for rest and recreation.
In-Person Public Meeting
The Murdoch Center
July 26, 2022 at 5:30 p.m.
Virtual Public Meeting
July 27, 2022 at 2:30 p.m.
On May 24, the project team presented the results of an Economic Impact Study (EIS) to Mayor and City Council. Please see the study for more information and let us know your thoughts using the comment form.
Council directed city staff to conduct an EIS after traffic modeling showed that the Lone Tree Overpass project could reduce traffic flows. Read full article in the Arizona Daily Sun.
The Lone Tree Overpass team will be presenting to the Flagstaff Transportation Commission at its meeting on Thursday, January 13 at 4:00 PM MDT. You are invited to join this live, virtual meeting to hear the update on the Lone Tree Overpass Project.
The meeting will be held on Microsoft Teams. There are two options to join the meeting.
Click on the following link https://www.flagstaff.az.gov/Archive.aspx?ADID=6984 or call 1-520-415-3558 and enter phone conference identification number 995 062 995#.
For more information about the meeting, please visit the City of Flagstaff website https://www.flagstaff.az.gov
Attend to learn about and provide your comments on the Lone Tree Overpass project. The project team will be available to answer your questions live during the meeting. Register Now!
The project team will use the recommended alignment from the 2010 Lone Tree Overpass Study and the 2020 Final Report Update as the initial design concept. This base concept will be refined, stakeholder coordination will occur, and the right-of-way impacts will be refined. The design will begin in phases and will progress as stakeholder agreements are obtained and design decisions are made with the public and stakeholders.