Recorded chokepoint passages for Manitoulin, 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/manitoulin/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/soo/2025-12/freighterlog:passage:316014160:2025-12-24T17:24:54ZManitoulin crossed Soo Locks (St. Marys River) upbound on 24 Dec 2025 12:24 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 24 Dec 2025 17:24:54 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014160:2025-12-20T23:27:55ZManitoulin crossed Soo Locks (St. Marys River) downbound on 20 Dec 2025 18:27 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, 20 Dec 2025 23:27:55 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014160:2025-12-16T05:44:54ZManitoulin crossed Soo Locks (St. Marys River) upbound on 16 Dec 2025 00:44 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, 16 Dec 2025 05:44:54 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316014160:2025-12-15T04:49:33ZManitoulin crossed Port Huron / Blue Water Bridge upbound on 14 Dec 2025 23:49 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 15 Dec 2025 04:49:33 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316014160:2025-12-14T22:35:33ZManitoulin crossed Detroit River / Ambassador Bridge upbound on 14 Dec 2025 17:35 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, 14 Dec 2025 22:35:33 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:316014160:2025-12-10T19:43:56ZManitoulin crossed Detroit River / Ambassador Bridge downbound on 10 Dec 2025 14:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 10 Dec 2025 19:43:56 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316014160:2025-12-10T13:35:06ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 10 Dec 2025 08:35 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 10 Dec 2025 13:35:06 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014160:2025-12-09T00:58:37ZManitoulin crossed Soo Locks (St. Marys River) downbound on 8 Dec 2025 19:58 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 00:58:37 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014160:2025-12-04T20:19:25ZManitoulin crossed Soo Locks (St. Marys River) upbound on 4 Dec 2025 15:19 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 04 Dec 2025 20:19:25 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:316014160:2025-12-02T15:40:47ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 2 Dec 2025 10:40 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, 02 Dec 2025 15:40:47 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316014160:2025-11-30T01:12:42ZManitoulin crossed Port Huron / Blue Water Bridge upbound on 29 Nov 2025 20:12 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 30 Nov 2025 01:12:42 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316014160:2025-11-29T18:19:25ZManitoulin crossed Detroit River / Ambassador Bridge upbound on 29 Nov 2025 13:19 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 29 Nov 2025 18:19:25 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316014160:2025-11-26T08:42:02ZManitoulin crossed Welland Canal (Thorold) upbound on 26 Nov 2025 03:42 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 26 Nov 2025 08:42:02 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:316014160:2025-11-20T00:33:15ZManitoulin crossed Welland Canal (Thorold) downbound on 19 Nov 2025 19:33 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 20 Nov 2025 00:33:15 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316014160:2025-11-19T00:48:27ZManitoulin crossed Detroit River / Ambassador Bridge downbound on 18 Nov 2025 19:48 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 19 Nov 2025 00:48:27 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316014160:2025-11-18T20:05:31ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 18 Nov 2025 15:05 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 18 Nov 2025 20:05:31 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316014160:2025-11-17T21:42:11ZManitoulin crossed Soo Locks (St. Marys River) downbound on 17 Nov 2025 16:42 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 17 Nov 2025 21:42:11 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:316014160:2025-11-14T22:13:34ZManitoulin crossed Duluth Ship Canal outbound on 14 Nov 2025 16:13 CST. 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 22:13:34 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:316014160:2025-11-13T11:33:59ZManitoulin crossed Duluth Ship Canal inbound on 13 Nov 2025 05:33 CST. 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 11:33:59 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:316014160:2025-11-09T20:53:54ZManitoulin crossed Soo Locks (St. Marys River) upbound on 9 Nov 2025 15:53 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 20:53:54 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316014160:2025-11-08T23:30:47ZManitoulin crossed Port Huron / Blue Water Bridge upbound on 8 Nov 2025 18:30 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 08 Nov 2025 23:30:47 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316014160:2025-11-08T10:10:20ZManitoulin crossed Detroit River / Ambassador Bridge upbound on 8 Nov 2025 05:10 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, 08 Nov 2025 10:10:20 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:316014160:2025-11-01T22:48:42ZManitoulin crossed Detroit River / Ambassador Bridge downbound on 1 Nov 2025 18:48 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 22:48:42 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:316014160:2025-11-01T17:27:06ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 1 Nov 2025 13:27 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 01 Nov 2025 17:27:06 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316014160:2025-10-31T19:38:23ZManitoulin crossed Soo Locks (St. Marys River) downbound on 31 Oct 2025 15:38 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, 31 Oct 2025 19:38:23 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:316014160:2025-10-28T08:42:21ZManitoulin crossed Soo Locks (St. Marys River) upbound on 28 Oct 2025 04:42 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 28 Oct 2025 08:42:21 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316014160:2025-10-26T20:00:55ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 26 Oct 2025 16:00 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 20:00:55 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:316014160:2025-10-25T12:23:39ZManitoulin crossed Straits of Mackinac eastbound on 25 Oct 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.Sat, 25 Oct 2025 12:23:39 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:316014160:2025-10-23T09:26:19ZManitoulin crossed Straits of Mackinac westbound on 23 Oct 2025 05:26 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 09:26:19 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:316014160:2025-10-21T06:29:25ZManitoulin crossed Port Huron / Blue Water Bridge upbound on 21 Oct 2025 02:29 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 21 Oct 2025 06:29:25 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:316014160:2025-10-21T00:32:18ZManitoulin crossed Detroit River / Ambassador Bridge upbound on 20 Oct 2025 20:32 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 00:32:18 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:316014160:2025-10-19T20:56:11ZManitoulin crossed Welland Canal (Thorold) upbound on 19 Oct 2025 16:56 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 19 Oct 2025 20:56:11 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:316014160:2025-09-29T11:58:26ZManitoulin crossed Welland Canal (Thorold) downbound on 29 Sep 2025 07:58 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 11:58:26 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316014160:2025-09-26T22:35:59ZManitoulin crossed Detroit River / Ambassador Bridge downbound on 26 Sep 2025 18:35 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Sep 2025 22:35:59 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316014160:2025-09-25T20:08:32ZManitoulin crossed Soo Locks (St. Marys River) downbound on 25 Sep 2025 16:08 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Sep 2025 20:08:32 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:316014160:2025-09-22T05:45:34ZManitoulin crossed Soo Locks (St. Marys River) upbound on 22 Sep 2025 01:45 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 05:45:34 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316014160:2025-09-21T06:42:21ZManitoulin crossed Port Huron / Blue Water Bridge upbound on 21 Sep 2025 02:42 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 21 Sep 2025 06:42:21 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316014160:2025-09-20T23:48:53ZManitoulin crossed Detroit River / Ambassador Bridge upbound on 20 Sep 2025 19:48 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 23:48:53 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:316014160:2025-09-15T22:58:23ZManitoulin crossed Detroit River / Ambassador Bridge downbound on 15 Sep 2025 18:58 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, 15 Sep 2025 22:58:23 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:316014160:2025-09-15T17:14:55ZManitoulin crossed Port Huron / Blue Water Bridge downbound on 15 Sep 2025 13:14 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 15 Sep 2025 17:14:55 GMT