Back to HomeSt. Lawrence Seaway Management Corporation

2025 – #14 Closing of the 2025 Navigation Season

October 17, 2025

2025 – #18 Wharf 13 – Revised Maximum Drafts – Revision #1

October 17, 2025

2025 – #34 Temporary Increase of Lake Ontario Outflows

October 16, 2025

2025 – #33 Speed Restrictions – MLO Section – Revision #4

October 16, 2025

2025 – #17 Dredging Wharf 10 Area

October 14, 2025

2025 – #16 Wharf 13 – Revised Maximum Drafts (Revised 2025/10/17)

October 7, 2025

2025 – #15 Planned Outages for Unwatering Gate Removal below Lock 1

October 6, 2025

2025 – #32 Linehandler Training at MLO and GLS Locks

October 3, 2025

2025 – #14 Bridge 11 and Bridge 21 – Increased Maximum Wind Speed

September 26, 2025

Temporary Exhibit Power Outages at Seaway Visitor Center – Facility Remains Open

September 9, 2025

2025 – #31 Longitudinal Hydraulic Assistance Tests at Côte Ste. Catherine Lock

September 4, 2025

2025 – #30 Commissioning Completed – Hands Free Mooring System at Iroquois Lock

August 22, 2025

2025 – #29 Speed Restrictions – MLO Section – Revision #3 (Revised 2025/10/16)

August 19, 2025

Great Lakes Seaway Announces Port Winners of 2024 Season “Pacesetter Award”

August 15, 2025

2025 – #13 Maximum Permissible Draft – Montreal to Lake Ontario and Welland Canal

August 12, 2025

2025 – #28 Speed Restrictions – MLO Section – Revision #2 (Revised 2025/08/19)

August 12, 2025

2025 – #27 Speed Restrictions – MLO Section Revision #1 (Revised 2025/08/12)

August 8, 2025

2025 – #26 Low Water Levels St-Louis Lake (Revised 2025/08/08)

August 5, 2025

2025 – #13 Bridge 11 and Bridge 21 – Maximum Wind Speed (Cancelled 2025/09/26)

July 25, 2025

2025 – #25 Ships Only Permitted to Use Radar Set on Short Range of Three Nautical Miles or Less at Locks – Revision #1

July 15, 2025

2025 – #24 New Access Procedure at Iroquois Lock

July 14, 2025

2025 – #23 Water Flows Unavailable for Moses-Saunders, Pointe des Cascades, Carillon and Beauharnois

July 2, 2025

2025 – #22 Water Flows Unavailable for Moses-Saunders, Pointe des Cascades, Carillon and Beauharnois

June 30, 2025

2025 – #21 Linehandler Training at MLO and GLS Locks

June 30, 2025

2025 – #20 Brockville Fireworks

June 27, 2025

2025 – #19 Request to Reduce Speed – Copeland Cut

June 26, 2025

2025 – #18 Ships Only Permitted to Use Radar Set on Short Range of Three Nautical Miles or Less at Locks (Revised 2025/07/15)

June 26, 2025

Mike McCoshen Sworn In as New Administrator of the Great Lakes St. Lawrence Seaway Development Corporation

June 25, 2025

2025 – #17 Fireworks at La Ronde – Port of Montreal

June 24, 2025

2025 – #16 Meeting Restrictions for a Deadship Leaving the Port of Montreal

June 20, 2025