Recorded chokepoint passages for Algoma Guardian, 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/algoma-guardian/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/2025-12/freighterlog:passage:316018031:2025-12-29T06:28:11ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) downbound on 29 Dec 2025 01:28 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, 29 Dec 2025 06:28:11 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018031:2025-12-28T08:04:24ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 28 Dec 2025 03:04 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, 28 Dec 2025 08:04:24 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316018031:2025-12-28T02:05:44ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 27 Dec 2025 21:05 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, 28 Dec 2025 02:05:44 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316018031:2025-12-25T15:25:14ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 25 Dec 2025 10:25 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, 25 Dec 2025 15:25:14 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316018031:2025-12-20T16:17:58ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 20 Dec 2025 11:17 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, 20 Dec 2025 16:17:58 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316018031:2025-12-19T12:44:23ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 19 Dec 2025 07:44 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, 19 Dec 2025 12:44:23 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018031:2025-12-19T07:15:41ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 19 Dec 2025 02:15 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, 19 Dec 2025 07:15:41 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316018031:2025-12-18T09:22:05ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) upbound on 18 Dec 2025 04:22 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, 18 Dec 2025 09:22:05 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316018031:2025-12-05T23:21:18ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) downbound on 5 Dec 2025 18:21 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, 05 Dec 2025 23:21:18 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018031:2025-12-04T20:36:17ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 4 Dec 2025 15:36 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, 04 Dec 2025 20:36:17 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316018031:2025-12-04T15:14:44ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 4 Dec 2025 10:14 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, 04 Dec 2025 15:14:44 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316018031:2025-12-03T19:15:03ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 3 Dec 2025 14:15 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, 03 Dec 2025 19:15:03 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316018031:2025-11-30T17:16:19ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 30 Nov 2025 12:16 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, 30 Nov 2025 17:16:19 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316018031:2025-11-29T21:08:25ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 29 Nov 2025 16:08 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, 29 Nov 2025 21:08:25 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316018031:2025-11-29T15:43:40ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 29 Nov 2025 10:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 29 Nov 2025 15:43:40 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018031:2025-11-26T17:40:28ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) upbound on 26 Nov 2025 12:40 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, 26 Nov 2025 17:40:28 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018031:2025-11-19T22:14:29ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) downbound on 19 Nov 2025 17:14 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, 19 Nov 2025 22:14:29 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316018031:2025-11-18T22:43:24ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 18 Nov 2025 17:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 18 Nov 2025 22:43:24 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316018031:2025-11-18T17:15:49ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 18 Nov 2025 12:15 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, 18 Nov 2025 17:15:49 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316018031:2025-11-17T21:10:21ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 17 Nov 2025 16:10 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, 17 Nov 2025 21:10:21 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316018031:2025-11-14T15:09:37ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 14 Nov 2025 10:09 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, 14 Nov 2025 15:09:37 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316018031:2025-11-13T18:09:40ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 13 Nov 2025 13:09 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, 13 Nov 2025 18:09:40 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316018031:2025-11-13T13:04:39ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 13 Nov 2025 08:04 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, 13 Nov 2025 13:04:39 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018031:2025-11-11T11:15:58ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) upbound on 11 Nov 2025 06:15 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, 11 Nov 2025 11:15:58 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316018031:2025-10-29T19:35:35ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) downbound on 29 Oct 2025 15:35 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, 29 Oct 2025 19:35:35 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316018031:2025-10-28T16:17:16ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 28 Oct 2025 12:17 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 28 Oct 2025 16:17:16 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018031:2025-10-27T19:05:24ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 27 Oct 2025 15:05 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 27 Oct 2025 19:05:24 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018031:2025-10-25T01:29:16ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 24 Oct 2025 21:29 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, 25 Oct 2025 01:29:16 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316018031:2025-10-24T04:38:07ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 24 Oct 2025 00:38 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, 24 Oct 2025 04:38:07 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018031:2025-10-23T23:15:03ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 23 Oct 2025 19:15 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, 23 Oct 2025 23:15:03 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316018031:2025-10-23T02:20:34ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) upbound on 22 Oct 2025 22:20 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, 23 Oct 2025 02:20:34 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018031:2025-10-09T19:31:19ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 9 Oct 2025 15:31 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, 09 Oct 2025 19:31:19 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018031:2025-10-08T18:07:04ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 8 Oct 2025 14:07 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, 08 Oct 2025 18:07:04 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018031:2025-10-05T15:18:29ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 5 Oct 2025 11:18 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, 05 Oct 2025 15:18:29 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316018031:2025-10-04T19:06:24ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 4 Oct 2025 15:06 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, 04 Oct 2025 19:06:24 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018031:2025-10-04T13:36:24ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 4 Oct 2025 09:36 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 04 Oct 2025 13:36:24 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316018031:2025-10-03T17:08:26ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) upbound on 3 Oct 2025 13:08 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, 03 Oct 2025 17:08:26 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316018031:2025-09-22T16:35:35ZAlgoma Guardian (Algoma Central) crossed Welland Canal (Thorold) downbound on 22 Sep 2025 12:35 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 22 Sep 2025 16:35:35 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316018031:2025-09-21T18:31:49ZAlgoma Guardian (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 21 Sep 2025 14:31 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, 21 Sep 2025 18:31:49 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316018031:2025-09-21T13:18:08ZAlgoma Guardian (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 21 Sep 2025 09:18 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, 21 Sep 2025 13:18:08 GMT