https://greatlakes-seaway.com/en/commercial-shipping/transiting-the-seaway/
Transiting the Seaway - Great Lakes St. Lawrence Seaway System
Feb 5, 2026 - What You Need to Know The following checklist will serve to provide a quick orientation of what steps are required to transit the St. Lawrence Seaway.
transiting the seawaygreat lakesst lawrencesystem