Recorded chokepoint passages for Johanna 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/johanna-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/detroit-river/2025-11/freighterlog:passage:255806117:2025-11-29T13:39:06ZJohanna G crossed Detroit River / Ambassador Bridge downbound on 29 Nov 2025 08:39 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 13:39:06 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:255806117:2025-11-29T06:37:26ZJohanna G crossed Port Huron / Blue Water Bridge downbound on 29 Nov 2025 01:37 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 06:37:26 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:255806117:2025-11-25T15:23:46ZJohanna G crossed Soo Locks (St. Marys River) downbound on 25 Nov 2025 10:23 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 15:23:46 GMThttps://freighterlog.com/log/soo/2025-11/freighterlog:passage:255806117:2025-11-18T06:22:54ZJohanna G crossed Soo Locks (St. Marys River) upbound on 18 Nov 2025 01:22 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 06:22:54 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:255806117:2025-11-17T03:19:41ZJohanna G crossed Port Huron / Blue Water Bridge upbound on 16 Nov 2025 22:19 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 17 Nov 2025 03:19:41 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:255806117:2025-11-16T20:30:47ZJohanna G crossed Detroit River / Ambassador Bridge upbound on 16 Nov 2025 15:30 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 16 Nov 2025 20:30:47 GMThttps://freighterlog.com/log/welland/2025-11/freighterlog:passage:255806117:2025-11-04T23:25:59ZJohanna G crossed Welland Canal (Thorold) upbound on 4 Nov 2025 18:25 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, 04 Nov 2025 23:25:59 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:255806117:2025-08-19T03:39:13ZJohanna G crossed Welland Canal (Thorold) downbound on 18 Aug 2025 23:39 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, 19 Aug 2025 03:39:13 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:255806117:2025-08-17T01:33:21ZJohanna G crossed Straits of Mackinac eastbound on 16 Aug 2025 21:33 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 17 Aug 2025 01:33:21 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:255806117:2025-08-09T13:27:39ZJohanna G crossed Straits of Mackinac westbound on 9 Aug 2025 09:27 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, 09 Aug 2025 13:27:39 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:255806117:2025-08-08T20:53:15ZJohanna G crossed Port Huron / Blue Water Bridge upbound on 8 Aug 2025 16:53 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 08 Aug 2025 20:53:15 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:255806117:2025-08-08T15:19:18ZJohanna G crossed Detroit River / Ambassador Bridge upbound on 8 Aug 2025 11:19 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 08 Aug 2025 15:19:18 GMThttps://freighterlog.com/log/welland/2025-08/freighterlog:passage:255806117:2025-08-02T06:04:35ZJohanna G crossed Welland Canal (Thorold) upbound on 2 Aug 2025 02:04 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 02 Aug 2025 06:04:35 GMThttps://freighterlog.com/log/welland/2025-04/freighterlog:passage:255806117:2025-04-25T09:27:32ZJohanna G crossed Welland Canal (Thorold) downbound on 25 Apr 2025 05:27 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 25 Apr 2025 09:27:32 GMThttps://freighterlog.com/log/detroit-river/2025-04/freighterlog:passage:255806117:2025-04-24T09:35:50ZJohanna G crossed Detroit River / Ambassador Bridge downbound on 24 Apr 2025 05:35 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 24 Apr 2025 09:35:50 GMThttps://freighterlog.com/log/port-huron/2025-04/freighterlog:passage:255806117:2025-04-24T00:10:05ZJohanna G crossed Port Huron / Blue Water Bridge downbound on 23 Apr 2025 20:10 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 24 Apr 2025 00:10:05 GMThttps://freighterlog.com/log/port-huron/2025-04/freighterlog:passage:255806117:2025-04-19T07:15:20ZJohanna G crossed Port Huron / Blue Water Bridge upbound on 19 Apr 2025 03:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 19 Apr 2025 07:15:20 GMThttps://freighterlog.com/log/detroit-river/2025-04/freighterlog:passage:255806117:2025-04-19T01:52:02ZJohanna G crossed Detroit River / Ambassador Bridge upbound on 18 Apr 2025 21:52 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 19 Apr 2025 01:52:02 GMThttps://freighterlog.com/log/welland/2025-04/freighterlog:passage:255806117:2025-04-18T05:37:45ZJohanna G crossed Welland Canal (Thorold) upbound on 18 Apr 2025 01:37 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 Apr 2025 05:37:45 GMThttps://freighterlog.com/log/welland/2024-12/freighterlog:passage:255806117:2024-12-10T19:52:49ZJohanna G crossed Welland Canal (Thorold) downbound on 10 Dec 2024 14:52 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 10 Dec 2024 19:52:49 GMThttps://freighterlog.com/log/detroit-river/2024-12/freighterlog:passage:255806117:2024-12-08T19:43:34ZJohanna G crossed Detroit River / Ambassador Bridge downbound on 8 Dec 2024 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.Sun, 08 Dec 2024 19:43:34 GMThttps://freighterlog.com/log/port-huron/2024-12/freighterlog:passage:255806117:2024-12-08T14:13:04ZJohanna G crossed Port Huron / Blue Water Bridge downbound on 8 Dec 2024 09:13 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 08 Dec 2024 14:13:04 GMThttps://freighterlog.com/log/soo/2024-12/freighterlog:passage:255806117:2024-12-07T10:55:05ZJohanna G crossed Soo Locks (St. Marys River) downbound on 7 Dec 2024 05:55 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, 07 Dec 2024 10:55:05 GMThttps://freighterlog.com/log/duluth-canal/2024-12/freighterlog:passage:255806117:2024-12-05T17:33:09ZJohanna G crossed Duluth Ship Canal outbound on 5 Dec 2024 11:33 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, 05 Dec 2024 17:33:09 GMThttps://freighterlog.com/log/duluth-canal/2024-12/freighterlog:passage:255806117:2024-12-02T00:21:12ZJohanna G crossed Duluth Ship Canal inbound on 1 Dec 2024 18:21 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, 02 Dec 2024 00:21:12 GMThttps://freighterlog.com/log/soo/2024-11/freighterlog:passage:255806117:2024-11-24T17:07:35ZJohanna G crossed Soo Locks (St. Marys River) upbound on 24 Nov 2024 12:07 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, 24 Nov 2024 17:07:35 GMThttps://freighterlog.com/log/port-huron/2024-11/freighterlog:passage:255806117:2024-11-23T13:55:35ZJohanna G crossed Port Huron / Blue Water Bridge upbound on 23 Nov 2024 08:55 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, 23 Nov 2024 13:55:35 GMThttps://freighterlog.com/log/welland/2024-11/freighterlog:passage:255806117:2024-11-21T18:37:16ZJohanna G crossed Welland Canal (Thorold) upbound on 21 Nov 2024 13:37 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, 21 Nov 2024 18:37:16 GMThttps://freighterlog.com/log/welland/2024-09/freighterlog:passage:255806117:2024-09-16T17:44:05ZJohanna G crossed Welland Canal (Thorold) downbound on 16 Sep 2024 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.Mon, 16 Sep 2024 17:44:05 GMThttps://freighterlog.com/log/detroit-river/2024-09/freighterlog:passage:255806117:2024-09-15T17:54:46ZJohanna G crossed Detroit River / Ambassador Bridge downbound on 15 Sep 2024 13:54 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 15 Sep 2024 17:54:46 GMThttps://freighterlog.com/log/port-huron/2024-09/freighterlog:passage:255806117:2024-09-15T09:28:54ZJohanna G crossed Port Huron / Blue Water Bridge downbound on 15 Sep 2024 05:28 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 15 Sep 2024 09:28:54 GMThttps://freighterlog.com/log/soo/2024-09/freighterlog:passage:255806117:2024-09-14T11:24:33ZJohanna G crossed Soo Locks (St. Marys River) downbound on 14 Sep 2024 07:24 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, 14 Sep 2024 11:24:33 GMThttps://freighterlog.com/log/soo/2024-08/freighterlog:passage:255806117:2024-08-19T03:52:22ZJohanna G crossed Soo Locks (St. Marys River) upbound on 18 Aug 2024 23:52 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 19 Aug 2024 03:52:22 GMThttps://freighterlog.com/log/port-huron/2024-08/freighterlog:passage:255806117:2024-08-18T06:39:17ZJohanna G crossed Port Huron / Blue Water Bridge upbound on 18 Aug 2024 02:39 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 18 Aug 2024 06:39:17 GMThttps://freighterlog.com/log/detroit-river/2024-08/freighterlog:passage:255806117:2024-08-18T01:33:40ZJohanna G crossed Detroit River / Ambassador Bridge upbound on 17 Aug 2024 21:33 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 18 Aug 2024 01:33:40 GMThttps://freighterlog.com/log/welland/2024-08/freighterlog:passage:255806117:2024-08-17T05:04:33ZJohanna G crossed Welland Canal (Thorold) upbound on 17 Aug 2024 01:04 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 17 Aug 2024 05:04:33 GMT