Sault Ste. Marie International Bridge begins phasing out Prox toll cards

February 3, 2023

 SAULT STE. MARIE, Mich. and Ontario – The Sault Ste. Marie International Bridge will begin to phase out its Prox toll cards starting March 31.

While Prox cards for personal commuter accounts will be accepted for toll payments through the end of the year, customers will have to use the card in the “all traffic” lanes staffed with a toll collector after March 31.

Existing Prox card customers can keep their current accounts and replace their cards with new tags. Based on enthusiastic adoption of the new tags, the International Bridge Administration (IBA) is now beginning to remove obsolete readers from the toll lanes.

Commercial accounts will no longer be able to use Prox commercial cards after March 31. After this date, commercial customers must use a new International Bridge IQ tag or a Blue Water Bridge Edge Pass or ConneXion tag. Blue Water Bridge tags must be added to an IBA account to function correctly. Cash, credit card, Google Pay, and Apply Pay payments will also be accepted at the booth.

Removal of Prox card readers will begin on April 1. Overhead message signs in the toll lanes will notify customers that the lane is open to “all traffic” or “tag only.”

The changes are part of the ongoing joint $9.3 million project to modernize toll systems at the Sault Ste. Marie International Bridge (connecting Sault Ste. Marie, Michigan, with Sault Ste. Marie, Ontario) and the Blue Water Bridge (connecting Port Huron, Michigan, to Point Edward, Ontario).

All existing customers have online accounts that can be accessed at The website allows users to manage their toll accounts and provides access instructions and answers to frequently asked questions. On the website, customers can review transactions, make one-time payments or set up automatic payments, request new or replacement tags, cancel tags, generate statements, and more.

For more information on the International Bridge, please visit Follow us on Twitter at


Sault Ste. Marie International Bridge:
Bridging Our Past, Connecting Our Future

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Sault Ste. Marie International Bridge board hears inspection report


November 14, 2022

  • The International Bridge recently underwent a biennial fracture critical inspection of the entire span.
  • Ongoing maintenance is keeping the bridge in good to fair condition.
  • The Sault Ste. Marie Bridge Authority (SSMBA) board of directors welcomed a new board member and named Natalie Kinloch as its chair and Thomas Buckingham Sr. vice chair for 2023.

SAULT STE. MARIE, Mich. and Ontario – The Sault Ste. Marie Bridge Authority (SSMBA) board of directors, the bi-national body that supervises operations of the International Bridge, heard reports on a recent bridge inspection at the board’s

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Sault Ste. Marie International Bridge painting project finishes early; all lanes now open

October 10, 2022

SAULT STE. MARIE, Mich. and Ontario – The $3 million (Canadian) painting project at the Sault Ste. Marie International Bridge has been completed and all lanes on the bridge were reopened to traffic this morning.

The project finished three weeks early; it was initially

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