Plan the cost of tolls ahead of time by filling out this form for an instant estimate.

A copy of the results can be emailed to you by selecting the email option.
*Does not apply to U.S. locks

The Great Lakes St. Lawrence Seaway System is open from mid-March until the end of December


Assign a project name and contact details if you would like to have a copy of your results sent to your email account or to our Market Development Team at the Great Lakes St.Lawrence Seaway.


All fields are required

A vessel list is available for download

A commodity list is available for download

Input the total in metric tonnes as follows: 10,000

Project Total


Yes, I would like a copy of these results sent to my email.
Yes, I would like to send a copy to the Seaway for follow-up.

Tips for Building Your Estimate

  • Cabotage/Jones Act
    Please note that Cabotage/Jones Act rules are in place in the Great Lakes/Seaway System. Please ensure the vessel is flagged appropriately if calling two or more U.S. ports or two or more Canadian ports. Please note that there are no Seaway Max vessels under U.S. flag.
  • Embargo
    From time to time embargoes do occur.
  • Domestic Tolls
    Cargo moving inside the Great Lakes or between two Canadian or two U.S. ports will be considered “domestic cargo” as such the bulk rate will apply regardless of type of cargo (ie. general or slabs).
  • St. Lawrence Seaway Schedule of Tolls
    Find more detailed information on the St. Lawrence Seaway Schedule of Tolls here »
  • Download of Typical Vessel Types
    Our typical vessel listing includes maximum draft and tonnage abilities per vessel. Download Vessel Type PDF »
  • Download the Commodities Listings
    Our commodities listing documentation includes a full list of commodities by Toll Category.
    Download Commodities List PDF »
  • Port Colborne
    Does not include Dock 12 (stone dock).
  • Minimum Charge for Locks
    A minimum charge of $26.92 is in place per lock.
  • Project Total
    Fees: Taxes, exchange rate and pilotage fees are additional.