Ambassador Bridge  
Detroit International Bridge Co.
P.O. Box 32666
Detroit, MI 48232
(877) 680-6446
Bicyclists are prohibited.

Blue Water Bridge
MI Department of Transportation
1410 Elmwood Street
Port Huron, MI 48060
(810) 984-3131
Riders and bicycles will be transported at the convenience of the Authority.

International Bridge
International Bridge Administration
934 Bridge Plaza
Sault Ste. Marie, MI  49783
(906) 635-5255
Bikes can be ridden across to Canada; toll.

Mackinac Bridge
Mackinac Bridge Authority
P.O. Box 217
St. Ignace, MI 49781
(906) 643-7600
Riders and bicycles will be transported at the convenience of the Authority.  Upon arriving at the bridge (Toll Plaza on north end, pay phone on south end), contact Authority and inform them of your needs.  Groups of 10 or more contact the Authority at least 24 hours prior to anticipated arrival.