Mackinac Bridge Authority

Spanning the Straits of Mackinac since 1957

Why can’t over-dimensioned vehicles get a Mackinac Bridge permit?

Posted on December 6th, 2023
Heavy loads are escorted for a different reason than over-dimensioned loads. Heavy load escorts ensure weight is safely distributed on the bridge by following rules set forth by the MBA based on the recommendations of engineers throughout the life of the bridge. Over-sized loads are escorted to ensure the safety o… Read More

How can a driver receive a Mackinac Bridge heavy truck permit?

Posted on December 6th, 2023
Vehicles between 80,000 lbs. and 144,000 lbs. are eligible for a Mackinac Bridge heavy truck permit. After completing three escorted crossings without violations, a driver will be issued a Mackinac Bridge heavy truck permit which will allow them to cross without escort. See all information regarding the MBA heav… Read More

What vehicles will be charged the fee?

Posted on December 6th, 2023
Vehicles crossing during normal weather conditions (all times excluding wind escorts) that are over 10 feet in width, over 90 feet in length that do not possess their own pilot vehicle or exceed 80,000 pounds and do not possess a Mackinac Bridge heavy truck permit will be charged this fee.… Read More

Why does the Mackinac Bridge Authority charge a fee for these escorts?

Posted on December 6th, 2023
After a review of average staff time, vehicle use, administrative costs, and necessary software upgrades, the Authority determined that a fee of $100 per vehicle would cover MBA expenses to provide the service. The bridge sees an average of about 1,700 oversize commercial vehicles each year.… Read More

Why does the Mackinac Bridge Authority charge a fee for these escorts?

Posted on December 5th, 2023
After a review of average staff time, vehicle use, administrative costs, and necessary software upgrades, the Authority determined that a fee of $100 per vehicle would cover MBA expenses to provide the service. The bridge sees an average of about 1,700 oversize commercial vehicles each year.… Read More

What vehicles will be charged the fee?

Posted on December 5th, 2023
Vehicles crossing during normal weather conditions (all times excluding wind escorts) that are over 10 feet in width, over 90 feet in length that do not possess their own pilot vehicle or exceed 80,000 pounds and do not possess a Mackinac Bridge heavy truck permit will be charged this fee.… Read More

How can a driver receive a Mackinac Bridge heavy truck permit?

Posted on December 5th, 2023
Vehicles between 80,000 lbs. and 144,000 lbs. are eligible for a Mackinac Bridge heavy truck permit. After completing three escorted crossings without violations, a driver will be issued a Mackinac Bridge heavy truck permit which will allow them to cross without escort. See all information regarding the MBA heav… Read More

Why can’t over-dimensioned vehicles get a Mackinac Bridge permit?

Posted on December 5th, 2023
Heavy loads are escorted for a different reason than over-dimensioned loads. Heavy load escorts ensure weight is safely distributed on the bridge by following rules set forth by the MBA based on the recommendations of engineers throughout the life of the bridge. Over-sized loads are escorted to ensure the safety o… Read More
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Mackinac Bridge Authority
N 415 I-75 St Ignace, MI 49781 (906) 643-7600
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