Recorded chokepoint passages for Muntgracht, 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/muntgracht/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/2025-10/freighterlog:passage:246771000:2025-10-07T17:44:40ZMuntgracht crossed Welland Canal (Thorold) downbound on 7 Oct 2025 13:44 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, 07 Oct 2025 17:44:40 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:246771000:2025-10-06T22:59:39ZMuntgracht crossed Detroit River / Ambassador Bridge downbound on 6 Oct 2025 18:59 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 06 Oct 2025 22:59:39 GMThttps://freighterlog.com/log/port-huron/2025-10/freighterlog:passage:246771000:2025-10-06T12:50:24ZMuntgracht crossed Port Huron / Blue Water Bridge downbound on 6 Oct 2025 08:50 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 06 Oct 2025 12:50:24 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:246771000:2025-10-05T20:38:43ZMuntgracht crossed Straits of Mackinac eastbound on 5 Oct 2025 16:38 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 05 Oct 2025 20:38:43 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:246771000:2025-09-30T22:31:51ZMuntgracht crossed Straits of Mackinac westbound on 30 Sep 2025 18:31 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 30 Sep 2025 22:31:51 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:246771000:2025-09-30T07:38:07ZMuntgracht crossed Port Huron / Blue Water Bridge upbound on 30 Sep 2025 03:38 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 30 Sep 2025 07:38:07 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:246771000:2025-09-30T01:54:36ZMuntgracht crossed Detroit River / Ambassador Bridge upbound on 29 Sep 2025 21:54 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 30 Sep 2025 01:54:36 GMThttps://freighterlog.com/log/welland/2025-09/freighterlog:passage:246771000:2025-09-29T06:15:43ZMuntgracht crossed Welland Canal (Thorold) upbound on 29 Sep 2025 02:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 29 Sep 2025 06:15:43 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:246771000:2025-07-14T18:07:41ZMuntgracht crossed Welland Canal (Thorold) downbound on 14 Jul 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.Mon, 14 Jul 2025 18:07:41 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:246771000:2025-07-13T19:29:26ZMuntgracht crossed Detroit River / Ambassador Bridge downbound on 13 Jul 2025 15:29 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, 13 Jul 2025 19:29:26 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:246771000:2025-07-13T14:27:47ZMuntgracht crossed Port Huron / Blue Water Bridge downbound on 13 Jul 2025 10:27 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 13 Jul 2025 14:27:47 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:246771000:2025-07-12T22:45:09ZMuntgracht crossed Straits of Mackinac eastbound on 12 Jul 2025 18:45 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 12 Jul 2025 22:45:09 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:246771000:2025-07-06T10:27:31ZMuntgracht crossed Port Huron / Blue Water Bridge upbound on 6 Jul 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.Sun, 06 Jul 2025 10:27:31 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:246771000:2025-07-06T05:17:59ZMuntgracht crossed Detroit River / Ambassador Bridge upbound on 6 Jul 2025 01:17 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 06 Jul 2025 05:17:59 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:246771000:2025-07-05T10:42:17ZMuntgracht crossed Welland Canal (Thorold) upbound on 5 Jul 2025 06:42 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, 05 Jul 2025 10:42:17 GMThttps://freighterlog.com/log/welland/2025-05/freighterlog:passage:246771000:2025-05-26T13:30:13ZMuntgracht crossed Welland Canal (Thorold) downbound on 26 May 2025 09:30 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, 26 May 2025 13:30:13 GMThttps://freighterlog.com/log/detroit-river/2025-05/freighterlog:passage:246771000:2025-05-25T16:00:59ZMuntgracht crossed Detroit River / Ambassador Bridge downbound on 25 May 2025 12:00 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, 25 May 2025 16:00:59 GMThttps://freighterlog.com/log/port-huron/2025-05/freighterlog:passage:246771000:2025-05-25T10:59:10ZMuntgracht crossed Port Huron / Blue Water Bridge downbound on 25 May 2025 06:59 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 25 May 2025 10:59:10 GMThttps://freighterlog.com/log/soo/2025-05/freighterlog:passage:246771000:2025-05-24T14:28:25ZMuntgracht crossed Soo Locks (St. Marys River) downbound on 24 May 2025 10:28 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, 24 May 2025 14:28:25 GMThttps://freighterlog.com/log/soo/2025-05/freighterlog:passage:246771000:2025-05-20T19:49:42ZMuntgracht crossed Soo Locks (St. Marys River) upbound on 20 May 2025 15:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 20 May 2025 19:49:42 GMThttps://freighterlog.com/log/mackinac/2025-05/freighterlog:passage:246771000:2025-05-20T11:07:19ZMuntgracht crossed Straits of Mackinac eastbound on 20 May 2025 07:07 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, 20 May 2025 11:07:19 GMThttps://freighterlog.com/log/mackinac/2025-05/freighterlog:passage:246771000:2025-05-17T23:39:01ZMuntgracht crossed Straits of Mackinac westbound on 17 May 2025 19:39 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 17 May 2025 23:39:01 GMThttps://freighterlog.com/log/port-huron/2025-05/freighterlog:passage:246771000:2025-05-17T02:36:50ZMuntgracht crossed Port Huron / Blue Water Bridge upbound on 16 May 2025 22:36 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, 17 May 2025 02:36:50 GMThttps://freighterlog.com/log/detroit-river/2025-05/freighterlog:passage:246771000:2025-05-16T19:33:59ZMuntgracht crossed Detroit River / Ambassador Bridge upbound on 16 May 2025 15:33 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, 16 May 2025 19:33:59 GMThttps://freighterlog.com/log/welland/2025-05/freighterlog:passage:246771000:2025-05-14T20:06:59ZMuntgracht crossed Welland Canal (Thorold) upbound on 14 May 2025 16:06 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 14 May 2025 20:06:59 GMThttps://freighterlog.com/log/welland/2024-08/freighterlog:passage:246771000:2024-08-26T19:46:41ZMuntgracht crossed Welland Canal (Thorold) downbound on 26 Aug 2024 15:46 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, 26 Aug 2024 19:46:41 GMThttps://freighterlog.com/log/welland/2024-08/freighterlog:passage:246771000:2024-08-22T13:28:23ZMuntgracht crossed Welland Canal (Thorold) upbound on 22 Aug 2024 09:28 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 22 Aug 2024 13:28:23 GMThttps://freighterlog.com/log/welland/2024-07/freighterlog:passage:246771000:2024-07-20T20:49:34ZMuntgracht crossed Welland Canal (Thorold) downbound on 20 Jul 2024 16:49 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 Jul 2024 20:49:34 GMThttps://freighterlog.com/log/detroit-river/2024-07/freighterlog:passage:246771000:2024-07-19T22:10:09ZMuntgracht crossed Detroit River / Ambassador Bridge downbound on 19 Jul 2024 18:10 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 Jul 2024 22:10:09 GMThttps://freighterlog.com/log/port-huron/2024-07/freighterlog:passage:246771000:2024-07-19T17:10:05ZMuntgracht crossed Port Huron / Blue Water Bridge downbound on 19 Jul 2024 13:10 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 Jul 2024 17:10:05 GMThttps://freighterlog.com/log/mackinac/2024-07/freighterlog:passage:246771000:2024-07-19T01:21:12ZMuntgracht crossed Straits of Mackinac eastbound on 18 Jul 2024 21:21 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 19 Jul 2024 01:21:12 GMThttps://freighterlog.com/log/mackinac/2024-07/freighterlog:passage:246771000:2024-07-06T19:53:26ZMuntgracht crossed Straits of Mackinac westbound on 6 Jul 2024 15:53 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, 06 Jul 2024 19:53:26 GMThttps://freighterlog.com/log/soo/2024-07/freighterlog:passage:246771000:2024-07-06T12:54:12ZMuntgracht crossed Soo Locks (St. Marys River) downbound on 6 Jul 2024 08:54 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 06 Jul 2024 12:54:12 GMThttps://freighterlog.com/log/duluth-canal/2024-07/freighterlog:passage:246771000:2024-07-05T03:10:17ZMuntgracht crossed Duluth Ship Canal outbound on 4 Jul 2024 22:10 CDT. 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 Jul 2024 03:10:17 GMThttps://freighterlog.com/log/duluth-canal/2024-07/freighterlog:passage:246771000:2024-07-01T09:06:06ZMuntgracht crossed Duluth Ship Canal inbound on 1 Jul 2024 04:06 CDT. 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 Jul 2024 09:06:06 GMThttps://freighterlog.com/log/soo/2024-06/freighterlog:passage:246771000:2024-06-30T02:56:16ZMuntgracht crossed Soo Locks (St. Marys River) upbound on 29 Jun 2024 22:56 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, 30 Jun 2024 02:56:16 GMThttps://freighterlog.com/log/port-huron/2024-06/freighterlog:passage:246771000:2024-06-29T07:11:56ZMuntgracht crossed Port Huron / Blue Water Bridge upbound on 29 Jun 2024 03:11 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, 29 Jun 2024 07:11:56 GMThttps://freighterlog.com/log/detroit-river/2024-06/freighterlog:passage:246771000:2024-06-29T01:57:36ZMuntgracht crossed Detroit River / Ambassador Bridge upbound on 28 Jun 2024 21:57 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, 29 Jun 2024 01:57:36 GMThttps://freighterlog.com/log/welland/2024-06/freighterlog:passage:246771000:2024-06-28T07:54:39ZMuntgracht crossed Welland Canal (Thorold) upbound on 28 Jun 2024 03:54 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 28 Jun 2024 07:54:39 GMT