Recorded chokepoint passages for Algoma Discovery, 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-discovery/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:316018477:2025-12-28T03:48:00ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 27 Dec 2025 22:48 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 03:48:00 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018477:2025-12-25T04:12:58ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 24 Dec 2025 23:12 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 04:12:58 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316018477:2025-12-22T05:31:36ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) upbound on 22 Dec 2025 00:31 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, 22 Dec 2025 05:31:36 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316018477:2025-12-11T12:23:43ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 11 Dec 2025 07:23 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, 11 Dec 2025 12:23:43 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018477:2025-12-10T06:00:49ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 10 Dec 2025 01:00 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 10 Dec 2025 06:00:49 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316018477:2025-12-09T22:55:21ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 9 Dec 2025 17:55 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 09 Dec 2025 22:55:21 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316018477:2025-12-08T20:30:47ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 8 Dec 2025 15:30 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, 08 Dec 2025 20:30:47 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316018477:2025-12-04T06:12:59ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 4 Dec 2025 01:12 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 06:12:59 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316018477:2025-12-04T00:35:38ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 3 Dec 2025 19:35 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 04 Dec 2025 00:35:38 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316018477:2025-12-02T21:49:32ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) upbound on 2 Dec 2025 16:49 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, 02 Dec 2025 21:49:32 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018477:2025-11-25T22:42:22ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 25 Nov 2025 17:42 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 25 Nov 2025 22:42:22 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316018477:2025-11-25T01:45:59ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 24 Nov 2025 20:45 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, 25 Nov 2025 01:45:59 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316018477:2025-11-24T20:21:33ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 24 Nov 2025 15:21 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 24 Nov 2025 20:21:33 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316018477:2025-11-24T00:05:00ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 23 Nov 2025 19:05 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 24 Nov 2025 00:05:00 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316018477:2025-11-21T17:33:15ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 21 Nov 2025 12:33 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, 21 Nov 2025 17:33:15 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316018477:2025-11-20T19:23:57ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 20 Nov 2025 14:23 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, 20 Nov 2025 19:23:57 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018477:2025-11-18T18:40:10ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) upbound on 18 Nov 2025 13:40 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 18 Nov 2025 18:40:10 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316018477:2025-11-02T01:03:42ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 1 Nov 2025 21:03 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, 02 Nov 2025 01:03:42 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316018477:2025-11-01T04:15:33ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 1 Nov 2025 00:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 01 Nov 2025 04:15:33 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316018477:2025-10-31T22:47:44ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 31 Oct 2025 18:47 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, 31 Oct 2025 22:47:44 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018477:2025-10-31T03:11:36ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 30 Oct 2025 23:11 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, 31 Oct 2025 03:11:36 GMThttps://freighterlog.com/log/superior-entry/2025-10/freighterlog:passage:316018477:2025-10-29T23:45:10ZAlgoma Discovery (Algoma Central) crossed Superior Entry outbound on 29 Oct 2025 18:45 CDT. 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 23:45:10 GMThttps://freighterlog.com/log/superior-entry/2025-10/freighterlog:passage:316018477:2025-10-29T13:47:39ZAlgoma Discovery (Algoma Central) crossed Superior Entry inbound on 29 Oct 2025 08:47 CDT. 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 13:47:39 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018477:2025-10-28T09:19:40ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 28 Oct 2025 05:19 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 09:19:40 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018477:2025-10-27T08:13:40ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 27 Oct 2025 04:13 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 27 Oct 2025 08:13:40 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316018477:2025-10-26T11:05:48ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) upbound on 26 Oct 2025 07:05 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 26 Oct 2025 11:05:48 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316018477:2025-10-18T12:11:05ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 18 Oct 2025 08:11 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, 18 Oct 2025 12:11:05 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018477:2025-10-17T15:56:11ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 17 Oct 2025 11:56 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, 17 Oct 2025 15:56:11 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018477:2025-10-16T12:42:26ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 16 Oct 2025 08:42 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, 16 Oct 2025 12:42:26 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316018477:2025-10-13T14:39:32ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 13 Oct 2025 10:39 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, 13 Oct 2025 14:39:32 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316018477:2025-10-12T17:15:49ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 12 Oct 2025 13:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 12 Oct 2025 17:15:49 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316018477:2025-10-12T11:29:53ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 12 Oct 2025 07:29 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 12 Oct 2025 11:29:53 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316018477:2025-09-26T12:52:46ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 26 Sep 2025 08:52 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, 26 Sep 2025 12:52:46 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316018477:2025-09-25T16:12:12ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 25 Sep 2025 12:12 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, 25 Sep 2025 16:12:12 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316018477:2025-09-24T15:09:03ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 24 Sep 2025 11:09 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, 24 Sep 2025 15:09:03 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316018477:2025-09-21T13:43:40ZAlgoma Discovery (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 21 Sep 2025 09:43 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 13:43:40 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316018477:2025-09-20T16:28:13ZAlgoma Discovery (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 20 Sep 2025 12:28 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, 20 Sep 2025 16:28:13 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316018477:2025-09-20T11:18:50ZAlgoma Discovery (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 20 Sep 2025 07:18 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 20 Sep 2025 11:18:50 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316018477:2025-09-19T12:23:49ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) upbound on 19 Sep 2025 08:23 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 19 Sep 2025 12:23:49 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316018477:2025-09-16T20:07:02ZAlgoma Discovery (Algoma Central) crossed Welland Canal (Thorold) downbound on 16 Sep 2025 16:07 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 16 Sep 2025 20:07:02 GMT