Recorded chokepoint passages for Federal Michigan, newest first. The record, not the map: this feed carries passages already in the archive, which ends at December 2025. Vessel data derived from the Nationwide Automatic Identification System (NOAA Office for Coastal Management, marinecadastre.gov), CC0.https://freighterlog.com/vessels/federal-michigan/en-usVessel data derived from the Nationwide Automatic Identification System (NOAA Office for Coastal Management, marinecadastre.gov), CC0. Transit and lock data from the St. Lawrence Seaway Management Corporation / Saint Lawrence Seaway Development Corporation public vessel-transit table (seaway-greatlakes.com).Wed, 23 Sep 2026 18:23:30 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:538011163:2025-07-13T11:36:30ZFederal Michigan crossed Welland Canal (Thorold) downbound on 13 Jul 2025 07:36 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 13 Jul 2025 11:36:30 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:538011163:2025-07-06T05:22:11ZFederal Michigan crossed Welland Canal (Thorold) upbound on 6 Jul 2025 01:22 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 06 Jul 2025 05:22:11 GMThttps://freighterlog.com/log/welland/2025-05/freighterlog:passage:538011163:2025-05-08T02:40:48ZFederal Michigan crossed Welland Canal (Thorold) downbound on 7 May 2025 22:40 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 08 May 2025 02:40:48 GMThttps://freighterlog.com/log/detroit-river/2025-05/freighterlog:passage:538011163:2025-05-07T06:10:22ZFederal Michigan crossed Detroit River / Ambassador Bridge downbound on 7 May 2025 02:10 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 07 May 2025 06:10:22 GMThttps://freighterlog.com/log/port-huron/2025-05/freighterlog:passage:538011163:2025-05-03T20:23:25ZFederal Michigan crossed Port Huron / Blue Water Bridge downbound on 3 May 2025 16:23 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 03 May 2025 20:23:25 GMThttps://freighterlog.com/log/mackinac/2025-05/freighterlog:passage:538011163:2025-05-03T00:46:33ZFederal Michigan crossed Straits of Mackinac eastbound on 2 May 2025 20:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 03 May 2025 00:46:33 GMThttps://freighterlog.com/log/mackinac/2025-04/freighterlog:passage:538011163:2025-04-19T21:17:10ZFederal Michigan crossed Straits of Mackinac westbound on 19 Apr 2025 17:17 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 19 Apr 2025 21:17:10 GMThttps://freighterlog.com/log/port-huron/2025-04/freighterlog:passage:538011163:2025-04-19T05:13:03ZFederal Michigan crossed Port Huron / Blue Water Bridge upbound on 19 Apr 2025 01:13 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 19 Apr 2025 05:13:03 GMThttps://freighterlog.com/log/detroit-river/2025-04/freighterlog:passage:538011163:2025-04-18T23:49:01ZFederal Michigan crossed Detroit River / Ambassador Bridge upbound on 18 Apr 2025 19:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 18 Apr 2025 23:49:01 GMThttps://freighterlog.com/log/welland/2025-04/freighterlog:passage:538011163:2025-04-18T03:46:23ZFederal Michigan crossed Welland Canal (Thorold) upbound on 17 Apr 2025 23:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 18 Apr 2025 03:46:23 GMThttps://freighterlog.com/log/welland/2024-12/freighterlog:passage:538011163:2024-12-19T16:42:52ZFederal Michigan crossed Welland Canal (Thorold) downbound on 19 Dec 2024 11:42 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 19 Dec 2024 16:42:52 GMThttps://freighterlog.com/log/detroit-river/2024-12/freighterlog:passage:538011163:2024-12-18T11:59:28ZFederal Michigan crossed Detroit River / Ambassador Bridge downbound on 18 Dec 2024 06:59 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 18 Dec 2024 11:59:28 GMThttps://freighterlog.com/log/port-huron/2024-12/freighterlog:passage:538011163:2024-12-17T16:02:18ZFederal Michigan crossed Port Huron / Blue Water Bridge downbound on 17 Dec 2024 11:02 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 17 Dec 2024 16:02:18 GMThttps://freighterlog.com/log/soo/2024-12/freighterlog:passage:538011163:2024-12-16T19:55:54ZFederal Michigan crossed Soo Locks (St. Marys River) downbound on 16 Dec 2024 14:55 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 16 Dec 2024 19:55:54 GMThttps://freighterlog.com/log/soo/2024-12/freighterlog:passage:538011163:2024-12-09T00:43:59ZFederal Michigan crossed Soo Locks (St. Marys River) upbound on 8 Dec 2024 19:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 09 Dec 2024 00:43:59 GMThttps://freighterlog.com/log/port-huron/2024-12/freighterlog:passage:538011163:2024-12-08T02:35:27ZFederal Michigan crossed Port Huron / Blue Water Bridge upbound on 7 Dec 2024 21:35 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 08 Dec 2024 02:35:27 GMThttps://freighterlog.com/log/detroit-river/2024-12/freighterlog:passage:538011163:2024-12-07T14:00:08ZFederal Michigan crossed Detroit River / Ambassador Bridge upbound on 7 Dec 2024 09:00 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 07 Dec 2024 14:00:08 GMThttps://freighterlog.com/log/welland/2024-12/freighterlog:passage:538011163:2024-12-06T12:24:31ZFederal Michigan crossed Welland Canal (Thorold) upbound on 6 Dec 2024 07:24 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 06 Dec 2024 12:24:31 GMT