Toll rates are posted at the Web sites below.

For Michigan's publicly owned bridges:

• International Bridge
  (Sault Ste. Marie, Michigan to Sault Ste. Marie, Ontario)
  Tolls on the International Bridge are adjusted twice a year to keep equity between rates in U.S. and Canadian currency. Rates are posted on April 1 and October 1 each year.
• Mackinac Bridge
  (Connecting Mackinaw City and St. Ignace)
• Blue Water Bridge
  (Port Huron, Michigan to Sarnia, Ontario)
  Fares on the Blue Water Bridge are imposed by the Canadian Government and the State of Michigan.

For privately owned crossings:

• Ambassador Bridge Website
  (Detroit, Michigan to Windsor, Ontario)
• Detroit-Windsor Tunnel Website
  (Detroit, Michigan to Windsor, Ontario)