In the late 2010s, MDOT and the City of St. Johns had multiple discussions about the M-21/Scott Road intersection. There were concerns with speeding and visibility issues due to the geometry of the intersection. In 2021, the City of St. Johns voted to send a resolution of support to MDOT for a roundabout to be built at the intersection.
With the support of the city, MDOT completed a scoping report for a rebuilding project along M-21, including the construction of a roundabout. Additional funding for a roundabout was secured in 2024 due to operational and safety concerns at the intersection.
In late 2025, both the City of St. Johns and Bingham Township passed a resolution requesting MDOT to reconsider the proposed roundabout, to install a traffic signal, and to conduct a traffic study to extend the traffic control further east on M-21. MDOT has completed a comprehensive traffic study to evaluate the M-21/Scott Road intersection for signalization. This study determined that a signal would not be appropriate at this location. MDOT is continuing to evaluate measures that could be implemented to encourage reduced speeds.
A roundabout at this intersection will improve safety and traffic flow. It will also serve as a clear gateway to St. Johns' historic downtown.
