Recorded chokepoint passages for Paul R Tregurtha, 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/paul-r-tregurtha/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/mackinac/2025-12/freighterlog:passage:366904940:2025-12-31T13:49:09ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac westbound on 31 Dec 2025 08:49 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 31 Dec 2025 13:49:09 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-31T05:21:52ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 31 Dec 2025 00:21 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 31 Dec 2025 05:21:52 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-28T18:12:35ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry outbound on 28 Dec 2025 12:12 CST. 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 18:12:35 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-27T14:49:44ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry inbound on 27 Dec 2025 08:49 CST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 27 Dec 2025 14:49:44 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-26T01:56:36ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 20:56 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 01:56:36 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366904940:2025-12-25T17:34:13ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac eastbound on 25 Dec 2025 12:34 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 17:34:13 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366904940:2025-12-22T13:36:27ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac westbound on 22 Dec 2025 08:36 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 22 Dec 2025 13:36:27 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-22T05:45:22ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 22 Dec 2025 00:45 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 22 Dec 2025 05:45:22 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-20T22:26:35ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry outbound on 20 Dec 2025 16:26 CST. 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 22:26:35 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-20T06:22:12ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry inbound on 20 Dec 2025 00:22 CST. 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 06:22:12 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-18T15:05:18ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 18 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, 18 Dec 2025 15:05:18 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:366904940:2025-12-17T10:20:15ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge upbound on 17 Dec 2025 05:20 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 17 Dec 2025 10:20:15 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:366904940:2025-12-16T10:19:37ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge upbound on 16 Dec 2025 05:19 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 16 Dec 2025 10:19:37 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:366904940:2025-12-14T12:07:42ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge downbound on 14 Dec 2025 07:07 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 14 Dec 2025 12:07:42 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:366904940:2025-12-13T17:52:51ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge downbound on 13 Dec 2025 12:52 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 13 Dec 2025 17:52:51 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-12T13:30:00ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 12 Dec 2025 08:30 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 12 Dec 2025 13:30:00 GMThttps://freighterlog.com/log/duluth-canal/2025-12/freighterlog:passage:366904940:2025-12-10T21:10:03ZPaul R Tregurtha (The Interlake Steamship Company) crossed Duluth Ship Canal inbound on 10 Dec 2025 15:10 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, 10 Dec 2025 21:10:03 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-09T10:56:46ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 9 Dec 2025 05:56 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 10:56:46 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366904940:2025-12-09T02:20:10ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac eastbound on 8 Dec 2025 21:20 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 09 Dec 2025 02:20:10 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366904940:2025-12-05T20:14:18ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac westbound on 5 Dec 2025 15:14 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 20:14:18 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-03T15:09:13ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry outbound on 3 Dec 2025 09:09 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, 03 Dec 2025 15:09:13 GMThttps://freighterlog.com/log/superior-entry/2025-12/freighterlog:passage:366904940:2025-12-02T17:14:16ZPaul R Tregurtha (The Interlake Steamship Company) crossed Superior Entry inbound on 2 Dec 2025 11:14 CST. 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 17:14:16 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904940:2025-12-01T07:44:20ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 1 Dec 2025 02:44 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 01 Dec 2025 07:44:20 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:366904940:2025-11-30T08:03:46ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge upbound on 30 Nov 2025 03:03 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 30 Nov 2025 08:03:46 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:366904940:2025-11-30T02:18:57ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge upbound on 29 Nov 2025 21:18 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 30 Nov 2025 02:18:57 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:366904940:2025-11-28T21:43:53ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge downbound on 28 Nov 2025 16:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 28 Nov 2025 21:43:53 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:366904940:2025-11-26T07:29:34ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge downbound on 26 Nov 2025 02:29 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 26 Nov 2025 07:29:34 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:366904940:2025-11-25T10:50:05ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 25 Nov 2025 05:50 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 25 Nov 2025 10:50:05 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:366904940:2025-11-24T02:32:33ZPaul R Tregurtha (The Interlake Steamship Company) crossed Duluth Ship Canal outbound on 23 Nov 2025 20:32 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, 24 Nov 2025 02:32:33 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:366904940:2025-11-23T15:03:21ZPaul R Tregurtha (The Interlake Steamship Company) crossed Duluth Ship Canal inbound on 23 Nov 2025 09:03 CST. 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 15:03:21 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:366904940:2025-11-22T09:29:00ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 22 Nov 2025 04:29 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 22 Nov 2025 09:29:00 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:366904940:2025-11-21T11:41:30ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge upbound on 21 Nov 2025 06:41 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 11:41:30 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:366904940:2025-11-21T05:11:56ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge upbound on 21 Nov 2025 00:11 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 21 Nov 2025 05:11:56 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:366904940:2025-11-19T15:06:46ZPaul R Tregurtha (The Interlake Steamship Company) crossed Detroit River / Ambassador Bridge downbound on 19 Nov 2025 10:06 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 15:06:46 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:366904940:2025-11-18T21:31:40ZPaul R Tregurtha (The Interlake Steamship Company) crossed Port Huron / Blue Water Bridge downbound on 18 Nov 2025 16:31 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 18 Nov 2025 21:31:40 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:366904940:2025-11-18T00:59:59ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 17 Nov 2025 19:59 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 00:59:59 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:366904940:2025-11-16T02:56:55ZPaul R Tregurtha (The Interlake Steamship Company) crossed Duluth Ship Canal outbound on 15 Nov 2025 20:56 CST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 16 Nov 2025 02:56:55 GMThttps://freighterlog.com/log/duluth-canal/2025-11/freighterlog:passage:366904940:2025-11-15T06:15:39ZPaul R Tregurtha (The Interlake Steamship Company) crossed Duluth Ship Canal inbound on 15 Nov 2025 00:15 CST. 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 06:15:39 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:366904940:2025-11-14T00:01:56ZPaul R Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 13 Nov 2025 19:01 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 00:01:56 GMThttps://freighterlog.com/log/mackinac/2025-11/freighterlog:passage:366904940:2025-11-12T03:15:38ZPaul R Tregurtha (The Interlake Steamship Company) crossed Straits of Mackinac eastbound on 11 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.Wed, 12 Nov 2025 03:15:38 GMT