Recorded chokepoint passages for Helena G, 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/helena-g/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:255806030:2025-12-11T05:13:48ZHelena G crossed Welland Canal (Thorold) downbound on 11 Dec 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.Thu, 11 Dec 2025 05:13:48 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:255806030:2025-12-09T15:29:55ZHelena G crossed Detroit River / Ambassador Bridge upbound on 9 Dec 2025 10:29 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 09 Dec 2025 15:29:55 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:255806030:2025-12-08T23:14:14ZHelena G crossed Detroit River / Ambassador Bridge upbound on 8 Dec 2025 18:14 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 08 Dec 2025 23:14:14 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:255806030:2025-12-08T20:01:26ZHelena G crossed Detroit River / Ambassador Bridge downbound on 8 Dec 2025 15:01 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 08 Dec 2025 20:01:26 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:255806030:2025-12-08T13:52:34ZHelena G crossed Port Huron / Blue Water Bridge downbound on 8 Dec 2025 08:52 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 08 Dec 2025 13:52:34 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:255806030:2025-12-07T11:11:39ZHelena G crossed Soo Locks (St. Marys River) downbound on 7 Dec 2025 06:11 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 07 Dec 2025 11:11:39 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:255806030:2025-12-02T16:58:35ZHelena G crossed Soo Locks (St. Marys River) upbound on 2 Dec 2025 11:58 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, 02 Dec 2025 16:58:35 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:255806030:2025-12-01T15:41:21ZHelena G crossed Port Huron / Blue Water Bridge upbound on 1 Dec 2025 10:41 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 01 Dec 2025 15:41:21 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:255806030:2025-12-01T10:14:53ZHelena G crossed Detroit River / Ambassador Bridge upbound on 1 Dec 2025 05:14 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 01 Dec 2025 10:14:53 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:255806030:2025-11-29T22:53:24ZHelena G crossed Welland Canal (Thorold) upbound on 29 Nov 2025 17:53 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 29 Nov 2025 22:53:24 GMThttps://freighterlog.com/log/welland/2025-10/freighterlog:passage:255806030:2025-10-06T18:38:57ZHelena G crossed Welland Canal (Thorold) downbound on 6 Oct 2025 14:38 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 06 Oct 2025 18:38:57 GMThttps://freighterlog.com/log/detroit-river/2025-10/freighterlog:passage:255806030:2025-10-05T21:11:08ZHelena G crossed Detroit River / Ambassador Bridge downbound on 5 Oct 2025 17:11 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 05 Oct 2025 21:11:08 GMThttps://freighterlog.com/log/soo/2025-10/freighterlog:passage:255806030:2025-10-04T18:23:39ZHelena G crossed Soo Locks (St. Marys River) downbound on 4 Oct 2025 14:23 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, 04 Oct 2025 18:23:39 GMThttps://freighterlog.com/log/soo/2025-09/freighterlog:passage:255806030:2025-09-30T21:18:52ZHelena G crossed Soo Locks (St. Marys River) upbound on 30 Sep 2025 17:18 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 21:18:52 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:255806030:2025-09-29T22:33:55ZHelena G crossed Port Huron / Blue Water Bridge upbound on 29 Sep 2025 18:33 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 29 Sep 2025 22:33:55 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:255806030:2025-09-29T17:02:23ZHelena G crossed Detroit River / Ambassador Bridge upbound on 29 Sep 2025 13:02 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 29 Sep 2025 17:02:23 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:255806030:2025-08-01T16:46:46ZHelena G crossed Welland Canal (Thorold) downbound on 1 Aug 2025 12:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 01 Aug 2025 16:46:46 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:255806030:2025-07-31T18:04:22ZHelena G crossed Detroit River / Ambassador Bridge downbound on 31 Jul 2025 14:04 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, 31 Jul 2025 18:04:22 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:255806030:2025-07-31T13:05:56ZHelena G crossed Port Huron / Blue Water Bridge downbound on 31 Jul 2025 09:05 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, 31 Jul 2025 13:05:56 GMThttps://freighterlog.com/log/soo/2025-07/freighterlog:passage:255806030:2025-07-30T14:46:31ZHelena G crossed Soo Locks (St. Marys River) downbound on 30 Jul 2025 10:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 30 Jul 2025 14:46:31 GMThttps://freighterlog.com/log/soo/2025-07/freighterlog:passage:255806030:2025-07-15T00:39:57ZHelena G crossed Soo Locks (St. Marys River) upbound on 14 Jul 2025 20:39 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 15 Jul 2025 00:39:57 GMThttps://freighterlog.com/log/port-huron/2025-07/freighterlog:passage:255806030:2025-07-14T04:21:20ZHelena G crossed Port Huron / Blue Water Bridge upbound on 14 Jul 2025 00:21 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 14 Jul 2025 04:21:20 GMThttps://freighterlog.com/log/detroit-river/2025-07/freighterlog:passage:255806030:2025-07-13T18:49:35ZHelena G crossed Detroit River / Ambassador Bridge upbound on 13 Jul 2025 14:49 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 13 Jul 2025 18:49:35 GMThttps://freighterlog.com/log/welland/2025-07/freighterlog:passage:255806030:2025-07-12T20:46:02ZHelena G crossed Welland Canal (Thorold) upbound on 12 Jul 2025 16:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 12 Jul 2025 20:46:02 GMThttps://freighterlog.com/log/welland/2025-05/freighterlog:passage:255806030:2025-05-09T01:18:31ZHelena G crossed Welland Canal (Thorold) downbound on 8 May 2025 21:18 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, 09 May 2025 01:18:31 GMThttps://freighterlog.com/log/detroit-river/2025-05/freighterlog:passage:255806030:2025-05-08T01:39:16ZHelena G crossed Detroit River / Ambassador Bridge downbound on 7 May 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.Thu, 08 May 2025 01:39:16 GMThttps://freighterlog.com/log/port-huron/2025-05/freighterlog:passage:255806030:2025-05-07T17:27:53ZHelena G crossed Port Huron / Blue Water Bridge downbound on 7 May 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.Wed, 07 May 2025 17:27:53 GMThttps://freighterlog.com/log/soo/2025-05/freighterlog:passage:255806030:2025-05-06T21:00:52ZHelena G crossed Soo Locks (St. Marys River) downbound on 6 May 2025 17:00 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 06 May 2025 21:00:52 GMThttps://freighterlog.com/log/soo/2025-05/freighterlog:passage:255806030:2025-05-03T21:19:55ZHelena G crossed Soo Locks (St. Marys River) upbound on 3 May 2025 17:19 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, 03 May 2025 21:19:55 GMThttps://freighterlog.com/log/port-huron/2025-05/freighterlog:passage:255806030:2025-05-02T21:43:18ZHelena G crossed Port Huron / Blue Water Bridge upbound on 2 May 2025 17:43 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 02 May 2025 21:43:18 GMThttps://freighterlog.com/log/detroit-river/2025-05/freighterlog:passage:255806030:2025-05-02T12:01:42ZHelena G crossed Detroit River / Ambassador Bridge upbound on 2 May 2025 08:01 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, 02 May 2025 12:01:42 GMThttps://freighterlog.com/log/welland/2025-04/freighterlog:passage:255806030:2025-04-30T06:00:15ZHelena G crossed Welland Canal (Thorold) upbound on 30 Apr 2025 02:00 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 30 Apr 2025 06:00:15 GMThttps://freighterlog.com/log/welland/2024-10/freighterlog:passage:255806030:2024-10-29T00:04:04ZHelena G crossed Welland Canal (Thorold) downbound on 28 Oct 2024 20:04 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 29 Oct 2024 00:04:04 GMThttps://freighterlog.com/log/detroit-river/2024-10/freighterlog:passage:255806030:2024-10-28T02:10:16ZHelena G crossed Detroit River / Ambassador Bridge downbound on 27 Oct 2024 22:10 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 28 Oct 2024 02:10:16 GMThttps://freighterlog.com/log/port-huron/2024-10/freighterlog:passage:255806030:2024-10-27T19:02:09ZHelena G crossed Port Huron / Blue Water Bridge downbound on 27 Oct 2024 15:02 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 27 Oct 2024 19:02:09 GMThttps://freighterlog.com/log/mackinac/2024-10/freighterlog:passage:255806030:2024-10-23T22:12:43ZHelena G crossed Straits of Mackinac eastbound on 23 Oct 2024 18:12 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, 23 Oct 2024 22:12:43 GMThttps://freighterlog.com/log/mackinac/2024-10/freighterlog:passage:255806030:2024-10-20T02:48:42ZHelena G crossed Straits of Mackinac westbound on 19 Oct 2024 22:48 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 20 Oct 2024 02:48:42 GMThttps://freighterlog.com/log/detroit-river/2024-10/freighterlog:passage:255806030:2024-10-19T03:57:07ZHelena G crossed Detroit River / Ambassador Bridge upbound on 18 Oct 2024 23:57 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, 19 Oct 2024 03:57:07 GMThttps://freighterlog.com/log/welland/2024-10/freighterlog:passage:255806030:2024-10-18T09:04:14ZHelena G crossed Welland Canal (Thorold) upbound on 18 Oct 2024 05:04 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 18 Oct 2024 09:04:14 GMThttps://freighterlog.com/log/welland/2024-06/freighterlog:passage:255806030:2024-06-28T23:34:12ZHelena G crossed Welland Canal (Thorold) downbound on 28 Jun 2024 19:34 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 23:34:12 GMT