Recorded chokepoint passages for John D Leitch, 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/john-d-leitch/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:316001701:2025-12-29T09:11:16ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 29 Dec 2025 04:11 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, 29 Dec 2025 09:11:16 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-26T09:12:06ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 26 Dec 2025 04:12 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Dec 2025 09:12:06 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-24T20:34:38ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 24 Dec 2025 15:34 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 20:34:38 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-21T06:05:21ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 21 Dec 2025 01:05 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, 21 Dec 2025 06:05:21 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-19T03:37:14ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 18 Dec 2025 22:37 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 03:37:14 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-13T16:07:31ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 13 Dec 2025 11:07 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 13 Dec 2025 16:07:31 GMThttps://freighterlog.com/log/welland/2025-12/freighterlog:passage:316001701:2025-12-05T18:52:09ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 5 Dec 2025 13:52 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 18:52:09 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316001701:2025-12-04T15:05:37ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 4 Dec 2025 10:05 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 04 Dec 2025 15:05:37 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316001701:2025-12-04T09:11:50ZJohn D Leitch (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 4 Dec 2025 04:11 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 04 Dec 2025 09:11:50 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316001701:2025-12-03T08:10:16ZJohn D Leitch (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 3 Dec 2025 03:10 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 03 Dec 2025 08:10:16 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:316001701:2025-12-01T18:54:37ZJohn D Leitch (Algoma Central) crossed Superior Entry outbound on 1 Dec 2025 12:54 CST. 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 18:54:37 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:316001701:2025-12-01T08:48:39ZJohn D Leitch (Algoma Central) crossed Superior Entry inbound on 1 Dec 2025 02:48 CST. 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 08:48:39 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316001701:2025-11-28T15:10:36ZJohn D Leitch (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 28 Nov 2025 10:10 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 28 Nov 2025 15:10:36 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316001701:2025-11-26T05:13:35ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 26 Nov 2025 00:13 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 05:13:35 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-25T03:15:02ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 24 Nov 2025 22:15 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, 25 Nov 2025 03:15:02 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-23T11:13:31ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 23 Nov 2025 06:13 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, 23 Nov 2025 11:13:31 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-21T00:27:08ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 20 Nov 2025 19:27 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 00:27:08 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-16T11:20:57ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 16 Nov 2025 06:20 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, 16 Nov 2025 11:20:57 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316001701:2025-11-15T10:27:00ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 15 Nov 2025 05:27 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, 15 Nov 2025 10:27:00 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316001701:2025-11-15T04:10:47ZJohn D Leitch (Algoma Central) crossed Port Huron / Blue Water Bridge downbound on 14 Nov 2025 23:10 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 15 Nov 2025 04:10:47 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316001701:2025-11-14T05:29:11ZJohn D Leitch (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 14 Nov 2025 00:29 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 05:29:11 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:316001701:2025-11-12T14:56:35ZJohn D Leitch (Algoma Central) crossed Duluth Ship Canal outbound on 12 Nov 2025 08:56 CST. 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 14:56:35 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:316001701:2025-11-12T04:01:50ZJohn D Leitch (Algoma Central) crossed Duluth Ship Canal inbound on 11 Nov 2025 22:01 CST. 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 04:01:50 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316001701:2025-11-10T16:46:29ZJohn D Leitch (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 10 Nov 2025 11:46 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 16:46:29 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316001701:2025-11-09T09:50:02ZJohn D Leitch (Algoma Central) crossed Port Huron / Blue Water Bridge upbound on 9 Nov 2025 04:50 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, 09 Nov 2025 09:50:02 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316001701:2025-11-08T21:37:23ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 8 Nov 2025 16:37 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, 08 Nov 2025 21:37:23 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-07T20:09:38ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 7 Nov 2025 15:09 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, 07 Nov 2025 20:09:38 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316001701:2025-11-04T02:38:44ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 3 Nov 2025 21:38 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 02:38:44 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-28T12:12:52ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 28 Oct 2025 08:12 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 28 Oct 2025 12:12:52 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-25T21:15:28ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 25 Oct 2025 17:15 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, 25 Oct 2025 21:15:28 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-19T07:41:48ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 19 Oct 2025 03:41 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 19 Oct 2025 07:41:48 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-15T22:07:15ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 15 Oct 2025 18:07 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, 15 Oct 2025 22:07:15 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-14T08:14:15ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 14 Oct 2025 04:14 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 14 Oct 2025 08:14:15 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-11T21:09:56ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 11 Oct 2025 17:09 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 11 Oct 2025 21:09:56 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-04T08:33:13ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 4 Oct 2025 04:33 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 04 Oct 2025 08:33:13 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316001701:2025-10-01T17:11:40ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) upbound on 1 Oct 2025 13:11 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 01 Oct 2025 17:11:40 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316001701:2025-09-29T09:54:56ZJohn D Leitch (Algoma Central) crossed Welland Canal (Thorold) downbound on 29 Sep 2025 05:54 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, 29 Sep 2025 09:54:56 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316001701:2025-09-26T10:20:46ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge upbound on 26 Sep 2025 06:20 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Sep 2025 10:20:46 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316001701:2025-09-24T12:12:51ZJohn D Leitch (Algoma Central) crossed Detroit River / Ambassador Bridge downbound on 24 Sep 2025 08:12 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 24 Sep 2025 12:12:51 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316001701:2025-09-23T06:50:44ZJohn D Leitch (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 23 Sep 2025 02:50 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 06:50:44 GMT