FreighterLog The record of Great Lakes shipping

Archive: January 2024 to December 2025, 28,207 passages. Seaway transits checked hourly. Last checked 2026-09-23 18:00 UTC — 14:00 EDT. NOAA publishes in quarterly batches, and the archive currently runs nine months behind.

Archive to December 2025 · Seaway checked 2026-09-23 18:00 UTC — 14:00 EDT

Passage log

Straits of Mackinac, March 2025

20 recorded passages by 13 distinct vessels, in the order they happened. Times are shown in Eastern time and are accurate to roughly ±15 minutes.

The log

Every recorded crossing of Straits of Mackinac in March 2025, oldest first.
Date Local time Vessel Direction
11 Mar 2025 09:39 EDT Samuel de Champlain westbound
19 Mar 2025 13:14 EDT Samuel de Champlain eastbound
25 Mar 2025 17:21 EDT Joyce L Vanenkevort westbound
25 Mar 2025 18:26 EDT Clyde S van Enkevort westbound
25 Mar 2025 19:06 EDT Baie Comeau westbound
26 Mar 2025 07:13 EDT Herbert C Jackson westbound
26 Mar 2025 11:12 EDT Edwin H Gott westbound
26 Mar 2025 14:42 EDT Samuel de Champlain westbound
27 Mar 2025 06:39 EDT Walter J McCarthy Jr westbound
28 Mar 2025 10:27 EDT Joyce L Vanenkevort eastbound
28 Mar 2025 14:14 EDT Clyde S van Enkevort eastbound
28 Mar 2025 18:59 EDT Finnborg westbound
28 Mar 2025 23:43 EDT Edwin H Gott eastbound
29 Mar 2025 07:42 EDT Stewart J Cort eastbound
29 Mar 2025 11:11 EDT Algoma Niagara westbound
29 Mar 2025 14:05 EDT Burns Harbor eastbound
29 Mar 2025 17:53 EDT Patagonman westbound
30 Mar 2025 06:00 EDT Walter J McCarthy Jr eastbound
30 Mar 2025 19:56 EDT Baie Comeau eastbound
31 Mar 2025 01:29 EDT Algoma Bear westbound

Times are interpolated from AIS track samples, good to about fifteen minutes, and shown in Eastern time. A passage is a track crossing our gate line, not an official lock record.