Recorded chokepoint passages for Viking Polaris, 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/viking-polaris/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/2025-09/freighterlog:passage:259144000:2025-09-21T19:36:36ZViking Polaris crossed Welland Canal (Thorold) downbound on 21 Sep 2025 15:36 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 21 Sep 2025 19:36:36 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:259144000:2025-09-19T21:50:42ZViking Polaris crossed Detroit River / Ambassador Bridge downbound on 19 Sep 2025 17:50 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 19 Sep 2025 21:50:42 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:259144000:2025-09-17T15:49:53ZViking Polaris crossed Straits of Mackinac eastbound on 17 Sep 2025 11:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 17 Sep 2025 15:49:53 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:259144000:2025-09-14T17:41:57ZViking Polaris crossed Straits of Mackinac westbound on 14 Sep 2025 13:41 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, 14 Sep 2025 17:41:57 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:259144000:2025-09-13T22:06:51ZViking Polaris crossed Soo Locks (St. Marys River) downbound on 13 Sep 2025 18:06 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 13 Sep 2025 22:06:51 GMThttps://freighterlog.com/log/duluth-canal/2025-09/freighterlog:passage:259144000:2025-09-12T22:51:15ZViking Polaris crossed Duluth Ship Canal outbound on 12 Sep 2025 17:51 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, 12 Sep 2025 22:51:15 GMThttps://freighterlog.com/log/duluth-canal/2025-09/freighterlog:passage:259144000:2025-09-12T16:33:43ZViking Polaris crossed Duluth Ship Canal inbound on 12 Sep 2025 11:33 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, 12 Sep 2025 16:33:43 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:259144000:2025-09-06T13:02:08ZViking Polaris crossed Soo Locks (St. Marys River) upbound on 6 Sep 2025 09:02 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 Sep 2025 13:02:08 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:259144000:2025-09-02T16:55:55ZViking Polaris crossed Straits of Mackinac eastbound on 2 Sep 2025 12:55 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, 02 Sep 2025 16:55:55 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:259144000:2025-08-30T22:26:55ZViking Polaris crossed Straits of Mackinac westbound on 30 Aug 2025 18:26 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 30 Aug 2025 22:26:55 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:259144000:2025-08-28T23:49:37ZViking Polaris crossed Port Huron / Blue Water Bridge upbound on 28 Aug 2025 19:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 28 Aug 2025 23:49:37 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:259144000:2025-08-28T07:45:57ZViking Polaris crossed Detroit River / Ambassador Bridge upbound on 28 Aug 2025 03:45 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 28 Aug 2025 07:45:57 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:259144000:2025-08-26T15:38:31ZViking Polaris crossed Welland Canal (Thorold) upbound on 26 Aug 2025 11:38 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, 26 Aug 2025 15:38:31 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:259144000:2025-08-24T16:06:54ZViking Polaris crossed Welland Canal (Thorold) downbound on 24 Aug 2025 12:06 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 24 Aug 2025 16:06:54 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:259144000:2025-08-22T02:57:52ZViking Polaris crossed Detroit River / Ambassador Bridge downbound on 21 Aug 2025 22:57 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 22 Aug 2025 02:57:52 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:259144000:2025-08-21T10:08:39ZViking Polaris crossed Port Huron / Blue Water Bridge downbound on 21 Aug 2025 06:08 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, 21 Aug 2025 10:08:39 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:259144000:2025-08-17T10:20:24ZViking Polaris crossed Straits of Mackinac eastbound on 17 Aug 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.Sun, 17 Aug 2025 10:20:24 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:259144000:2025-08-15T20:48:43ZViking Polaris crossed Straits of Mackinac westbound on 15 Aug 2025 16:48 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 15 Aug 2025 20:48:43 GMThttps://freighterlog.com/log/soo/2025-08/freighterlog:passage:259144000:2025-08-14T15:04:55ZViking Polaris crossed Soo Locks (St. Marys River) downbound on 14 Aug 2025 11:04 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, 14 Aug 2025 15:04:55 GMThttps://freighterlog.com/log/duluth-canal/2025-08/freighterlog:passage:259144000:2025-08-12T01:25:36ZViking Polaris crossed Duluth Ship Canal outbound on 11 Aug 2025 20:25 CDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 12 Aug 2025 01:25:36 GMThttps://freighterlog.com/log/duluth-canal/2025-08/freighterlog:passage:259144000:2025-08-11T15:18:50ZViking Polaris crossed Duluth Ship Canal inbound on 11 Aug 2025 10:18 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, 11 Aug 2025 15:18:50 GMThttps://freighterlog.com/log/soo/2025-08/freighterlog:passage:259144000:2025-08-08T17:11:30ZViking Polaris crossed Soo Locks (St. Marys River) upbound on 8 Aug 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.Fri, 08 Aug 2025 17:11:30 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:259144000:2025-08-04T14:59:36ZViking Polaris crossed Straits of Mackinac eastbound on 4 Aug 2025 10:59 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, 04 Aug 2025 14:59:36 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:259144000:2025-08-03T02:51:11ZViking Polaris crossed Straits of Mackinac westbound on 2 Aug 2025 22:51 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, 03 Aug 2025 02:51:11 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:259144000:2025-08-02T01:39:20ZViking Polaris crossed Port Huron / Blue Water Bridge upbound on 1 Aug 2025 21:39 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, 02 Aug 2025 01:39:20 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:259144000:2025-08-01T11:23:32ZViking Polaris crossed Detroit River / Ambassador Bridge upbound on 1 Aug 2025 07:23 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 01 Aug 2025 11:23:32 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:259144000:2025-07-29T19:19:36ZViking Polaris crossed Welland Canal (Thorold) upbound on 29 Jul 2025 15:19 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 29 Jul 2025 19:19:36 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:259144000:2025-07-27T20:20:19ZViking Polaris crossed Welland Canal (Thorold) downbound on 27 Jul 2025 16:20 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 27 Jul 2025 20:20:19 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:259144000:2025-07-25T22:16:27ZViking Polaris crossed Detroit River / Ambassador Bridge downbound on 25 Jul 2025 18:16 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 25 Jul 2025 22:16:27 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:259144000:2025-07-25T12:40:03ZViking Polaris crossed Port Huron / Blue Water Bridge downbound on 25 Jul 2025 08:40 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, 25 Jul 2025 12:40:03 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:259144000:2025-07-23T15:15:00ZViking Polaris crossed Straits of Mackinac eastbound on 23 Jul 2025 11:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 23 Jul 2025 15:15:00 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:259144000:2025-07-19T22:19:17ZViking Polaris crossed Straits of Mackinac westbound on 19 Jul 2025 18:19 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 19 Jul 2025 22:19:17 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:259144000:2025-07-17T22:56:49ZViking Polaris crossed Port Huron / Blue Water Bridge upbound on 17 Jul 2025 18:56 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 17 Jul 2025 22:56:49 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:259144000:2025-07-17T05:36:42ZViking Polaris crossed Detroit River / Ambassador Bridge upbound on 17 Jul 2025 01:36 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 17 Jul 2025 05:36:42 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:259144000:2025-07-15T12:52:34ZViking Polaris crossed Welland Canal (Thorold) upbound on 15 Jul 2025 08:52 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, 15 Jul 2025 12:52:34 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:259144000:2025-07-13T14:21:27ZViking Polaris crossed Welland Canal (Thorold) downbound on 13 Jul 2025 10:21 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 13 Jul 2025 14:21:27 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:259144000:2025-07-11T02:55:46ZViking Polaris crossed Detroit River / Ambassador Bridge upbound on 10 Jul 2025 22:55 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, 11 Jul 2025 02:55:46 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:259144000:2025-07-10T11:43:56ZViking Polaris crossed Port Huron / Blue Water Bridge downbound on 10 Jul 2025 07:43 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 10 Jul 2025 11:43:56 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:259144000:2025-07-06T06:21:17ZViking Polaris crossed Straits of Mackinac eastbound on 6 Jul 2025 02:21 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 06 Jul 2025 06:21:17 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:259144000:2025-07-04T22:09:32ZViking Polaris crossed Straits of Mackinac westbound on 4 Jul 2025 18:09 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 04 Jul 2025 22:09:32 GMT