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US-23 Improvement Project Study - Ann Arbor

MDOT is undertaking an Environmental Assessment (EA) study on US-23 in Washtenaw County between M-14 and I-94. This corridor carries approximately 80,000 vehicles on a typical weekday. Throughout the EA, MDOT will develop and evaluate different alternatives for the corridor to improve operations and safety. The study area is along the US-23 corridor in the city of Ann Arbor, Pittsfield Township, and Ann Arbor Township.

US-23 Study FAQs

US-23 Virtual Open House

US-23 Design Theme Survey


A Purpose and Need statement will be prepared that establishes the project’s overall goals. This document will be developed based on input from the communities, users of US-23, and property owners and residents, as part of a public involvement plan. The Purpose and Need will form the foundation to develop and evaluate alternatives. The EA will be performed per the National Environmental Policy Act (NEPA) to assess impacts to the environment resulting from any of the proposed alternatives, which also includes a no-action alternative.

An aesthetic guide will also be developed with community input to address the aesthetic and landscape elements that complement and integrate with the area’s physical contexts along the corridor. The aesthetic guide will provide a vision and a series of recommendations to be implemented during the design and construction of the project.


Project Manager
Jason Pittman, University Region 

Aaron Jenkins, Communications

Public Outreach
Monica Monsma, Environmental

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Engagement Opportunities

The outcome of this project will be shaped by public and stakeholder input. Community and stakeholder participation is important, and the engagement process will incorporate community values early on and carry those through the Purpose and Need, alternative development, evaluation, selection of a preferred alternative, and design. 

There will be multiple ways and opportunities throughout the project process for public participation, including live workshops and online surveys.

Questions? Submit your questions or comments on the proposed US-23 project.