2025-14 SEAWAY NOTICE – Closing

Closing of the 2025 Navigation Season The Seaway Corporations are confirming the closing dates of the 2025-26 navigation season that were communicated in Seaway Notice No.2 of 2025. 

Closing Dates Montreal-Lake Ontario Section. The Corporations have decided to waive the operational surcharges on December 21, 22, 23 and 24. Any transit of the Montreal-Lake Ontario Section of the Seaway after 23:59 hours, December 24, if permitted, will be subject to prior written agreement. Arrangements are to be made at the St. Lambert office. 

All ships must be clear of the MLO Section by 12:00 January 5, 2026. Any transits of the Welland Canal after 23:59 hours, December 26, if permitted, will be subject to prior written agreement. Arrangements are to be made at the St. Catharines office. All ships must be clear of the Welland Canal by 12:00 January 10, 2026.