Mackinac Bridge Accident Today: Multiple Injured After Early Morning Crash Forces Temporary Closure

A serious two-vehicle collision on the Mackinac Bridge in Michigan left multiple people injured early Wednesday, September 23, 2026, forcing authorities to temporarily close the bridge in both directions while emergency crews responded and investigators examined the scene.

According to Michigan State Police, the preliminary investigation indicates that both vehicles were traveling southbound when one vehicle rear-ended the other.

Several people were injured in the crash, including two individuals who sustained serious injuries.

Early Morning Crash Shuts Down Mackinac Bridge

The collision was reported at approximately 3:24 a.m., according to the Michigan Department of Transportation (MDOT).

Following the crash, the Mackinac Bridge was closed in both directions to allow emergency responders to assist those involved and to enable investigators to safely document the scene.

The Mackinac Bridge, which carries Interstate 75 across the Straits of Mackinac, serves as the primary connection between Michigan’s Upper and Lower Peninsulas.

The investigation is being led by the Michigan State Police St. Ignace Post, with assistance from the Mackinac Bridge Authority and other responding agencies.

Multiple People Injured

Authorities confirmed that multiple occupants were injured in the collision.

Two individuals sustained serious injuries and were transported for medical treatment. Officials have not publicly released the identities of those involved or provided additional information regarding their medical conditions.

The preliminary investigation indicates that the collision occurred when one southbound vehicle struck the rear of another. Investigators have not yet identified any additional contributing factors.

Bridge Reopened After Investigation

The Mackinac Bridge remained closed for several hours while emergency crews cleared the wreckage and investigators completed their initial examination.

Authorities later confirmed that the bridge reopened shortly before 8:00 a.m., allowing normal traffic to resume after significant delays.

Motorists affected by the closure were able to continue their journeys once all restrictions were lifted.

Investigation Ongoing

Michigan State Police continue to investigate the circumstances surrounding the collision.

At this time, officials have not released the names of those involved, nor have they announced any enforcement actions or identified a definitive cause of the crash.

Additional information may be released as investigators complete their review.

Mackinac Bridge Crash at a Glance

Information Disclaimer

This report is based on information released by Michigan State Police, the Michigan Department of Transportation, the Mackinac Bridge Authority, and publicly available news reports as of September 23, 2026. The investigation remains ongoing. Information regarding the cause of the collision, the identities of those involved, and the extent of injuries may change as additional details are released by authorities.