Because of those handling costs and exchange fluctuations, the Mackinac Bridge Authority currently charges $8 Canadian for the $4 U.S. currency toll.

The rate adjustments are rounded to the nearest 25 cents and are based on the prior six-month average daily exchange rate between the U.S. and Canada.

PORT HURON, Mich. (WNEM) - Toll rates at Port Huron’s Blue Water Bridge into Canada will stay the same following the latest currency parity review. Based on the current average daily exchange ...

According to the Mackinac Bridge Authority, when they receive Canadian currency for tolls, authority board policy requires seeking two exchange rates from two different banks. After selecting a ...