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How are tolls calculated for trucks?

Trucks on Mackinac Bridge, Grosse Ile Toll Bridge, Blue Water Bridge, and Detroit–Windsor Tunnel pay tolls based on number of axles.

On Ambassador bridge trucks pay tolls based on gross weight.

Michigan toll calculator can help you calculate tolls and gas expenses for all truck classes in Michigan. The toll calculator assumes that 2-axle trucks are in Class A, 3-axles and 4-axles trucks in Class B and 5-axles and 6-axles trucks are in Class C. The following table links Tollguru's Michigan toll calculator calculations for trucks based on axles with calculations based on Ambassador bridge weight class.

Tollguru Vehicle Type Ambassador Bridge Truck Class
Truck 2-axles Class A (0 - 36,000 lbs.)
Truck 3-axles Class B (36,001 lbs. - 54,000 lbs.)
Truck 4-axles Class B (36,001 lbs. - 54,000 lbs.)
Truck 5-axles Class C (54,001 lbs. - 145,000 lbs.)
Truck 6-axles Class C (54,001 lbs. - 145,000 lbs.)
TollGuru™ is not affiliated with any tolling agency. All product and company names and logos are trademarks™ or registered® trademarks of their respective holders. Their use does not imply any affiliation with or endorsement. Toll rates are for planning purposes and maybe inaccurate. While toll calculations are available for a variety of vehicles, including commercial vehicles, routing for vehicles other than 2-axle cars and motorcycles should be verified by independent means. In no way should routing be considered safe or legal on its own.