Cheboygan, MI – A major roadway in Cheboygan County is closed Monday after rising river levels prompted state officials to lift and shut down a critical bridge in the city of Cheboygan.
According to the Michigan Department of Transportation (MDOT), the US-23 bascule bridge in Cheboygan was raised Monday due to increased water flow along the Cheboygan River. The closure is a precautionary measure aimed at protecting the aging structure and ensuring the safety of drivers and pedestrians.
Engineers monitoring the bridge have not identified significant erosion at its foundation, but officials warn conditions could change quickly. The bridge, originally built in 1940, is considered scour critical, meaning its supports are vulnerable during periods of high water and fast-moving currents.
MDOT officials also noted that debris traveling downstream could become trapped beneath the bridge. If that occurs, it may alter water flow patterns and increase the risk of erosion around the structure. Authorities say these conditions could pose safety concerns, especially near the Cheboygan Lock and Dam complex.
Traffic is being rerouted to the Lincoln Avenue Bridge, located upstream from the dam. Drivers should expect delays and are encouraged to plan alternate routes while the closure remains in effect.
There is currently no set timeline for reopening the US-23 bridge. Officials say inspections will be required once water levels stabilize before any decision is made.
The closure follows a state of emergency declaration issued for Cheboygan County as officials continue to monitor flooding impacts across the region.
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