Recorded chokepoint passages for Capt. Henry Jackman, 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/capt-henry-jackman/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:316031354:2025-12-24T06:07:39ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 24 Dec 2025 01:07 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, 24 Dec 2025 06:07:39 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316031354:2025-12-23T09:57:41ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 23 Dec 2025 04:57 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, 23 Dec 2025 09:57:41 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316031354:2025-12-23T04:28:46ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 22 Dec 2025 23:28 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 23 Dec 2025 04:28:46 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316031354:2025-12-22T08:30:23ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 22 Dec 2025 03:30 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, 22 Dec 2025 08:30:23 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316031354:2025-12-18T06:26:37ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 18 Dec 2025 01:26 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 06:26:37 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316031354:2025-12-17T07:05:23ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 17 Dec 2025 02:05 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 17 Dec 2025 07:05:23 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316031354:2025-12-16T23:54:44ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 16 Dec 2025 18:54 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, 16 Dec 2025 23:54:44 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316031354:2025-12-16T03:36:19ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) upbound on 15 Dec 2025 22:36 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 16 Dec 2025 03:36:19 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316031354:2025-12-03T14:38:32ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 3 Dec 2025 09:38 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 14:38:32 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316031354:2025-12-02T12:44:41ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 2 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.Tue, 02 Dec 2025 12:44:41 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316031354:2025-12-01T16:11:46ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 1 Dec 2025 11:11 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, 01 Dec 2025 16:11:46 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316031354:2025-11-26T16:02:31ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 26 Nov 2025 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.Wed, 26 Nov 2025 16:02:31 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316031354:2025-11-25T15:03:25ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 25 Nov 2025 10:03 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 15:03:25 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316031354:2025-11-25T08:18:55ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 25 Nov 2025 03:18 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 08:18:55 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316031354:2025-11-24T11:03:02ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) upbound on 24 Nov 2025 06:03 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 11:03:02 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316031354:2025-11-13T23:38:01ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 13 Nov 2025 18:38 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 23:38:01 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316031354:2025-11-12T18:33:07ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 12 Nov 2025 13:33 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 12 Nov 2025 18:33:07 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316031354:2025-11-12T08:51:00ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 12 Nov 2025 03:51 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, 12 Nov 2025 08:51:00 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316031354:2025-11-10T20:55:39ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 10 Nov 2025 15:55 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, 10 Nov 2025 20:55:39 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316031354:2025-11-06T23:49:34ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 6 Nov 2025 18:49 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 06 Nov 2025 23:49:34 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316031354:2025-11-05T23:00:27ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 5 Nov 2025 18:00 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, 05 Nov 2025 23:00:27 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316031354:2025-11-05T15:19:56ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 5 Nov 2025 10:19 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, 05 Nov 2025 15:19:56 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316031354:2025-11-04T15:38:38ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) upbound on 4 Nov 2025 10:38 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, 04 Nov 2025 15:38:38 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316031354:2025-10-24T19:43:40ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 24 Oct 2025 15:43 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 24 Oct 2025 19:43:40 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316031354:2025-10-23T23:41:45ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 23 Oct 2025 19:41 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 23:41:45 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316031354:2025-10-21T05:35:52ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 21 Oct 2025 01:35 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 21 Oct 2025 05:35:52 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316031354:2025-10-20T10:27:53ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) upbound on 20 Oct 2025 06:27 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, 20 Oct 2025 10:27:53 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316031354:2025-09-25T15:14:37ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 25 Sep 2025 11:14 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 15:14:37 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316031354:2025-09-24T15:21:28ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 24 Sep 2025 11:21 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 15:21:28 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316031354:2025-09-24T09:59:25ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 24 Sep 2025 05:59 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 09:59:25 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316031354:2025-09-23T14:47:24ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 23 Sep 2025 10:47 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 23 Sep 2025 14:47:24 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316031354:2025-09-20T07:49:38ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 20 Sep 2025 03:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 20 Sep 2025 07:49:38 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316031354:2025-09-19T11:19:23ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 19 Sep 2025 07:19 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 19 Sep 2025 11:19:23 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316031354:2025-09-19T05:38:07ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 19 Sep 2025 01:38 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, 19 Sep 2025 05:38:07 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316031354:2025-09-18T04:16:07ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) upbound on 18 Sep 2025 00:16 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, 18 Sep 2025 04:16:07 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:316031354:2025-08-23T15:17:22ZCapt. Henry Jackman (Algoma Central) crossed Welland Canal (Thorold) downbound on 23 Aug 2025 11:17 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, 23 Aug 2025 15:17:22 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:316031354:2025-08-22T17:33:25ZCapt. Henry Jackman (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 22 Aug 2025 13:33 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, 22 Aug 2025 17:33:25 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:316031354:2025-08-22T12:33:59ZCapt. Henry Jackman (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 22 Aug 2025 08:33 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, 22 Aug 2025 12:33:59 GMThttps://freighterlog.com/log/soo/2025-08/freighterlog:passage:316031354:2025-08-21T16:12:33ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 21 Aug 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, 21 Aug 2025 16:12:33 GMThttps://freighterlog.com/log/soo/2025-08/freighterlog:passage:316031354:2025-08-16T23:42:31ZCapt. Henry Jackman (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 16 Aug 2025 19:42 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 16 Aug 2025 23:42:31 GMT