Recorded crossings of the Soo Locks (St. Marys River) chokepoint line, 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/locks/soo/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/soo/2025-12/freighterlog:passage:367120990:2025-12-31T22:32:44ZAmerican Integrity (American Steamship Company) crossed Soo Locks (St. Marys River) downbound on 31 Dec 2025 17:32 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 22:32:44 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014060:2025-12-31T09:49:23ZAlgoma Strongfield (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 31 Dec 2025 04:49 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 09:49:23 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366905890:2025-12-31T07:58:51ZJames R Barker (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 31 Dec 2025 02:58 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 31 Dec 2025 07:58:51 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/soo/2025-12/freighterlog:passage:316036089:2025-12-31T02:32:20ZAlgoma Sault (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 30 Dec 2025 21:32 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 02:32:20 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316052496:2025-12-30T15:31:28ZNorthern Venture crossed Soo Locks (St. Marys River) downbound on 30 Dec 2025 10:31 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, 30 Dec 2025 15:31:28 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938710:2025-12-29T09:19:30ZAmerican Mariner crossed Soo Locks (St. Marys River) downbound on 29 Dec 2025 04:19 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, 29 Dec 2025 09:19:30 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366971330:2025-12-29T02:35:40ZEdgar B Speer (Great Lakes Fleet) crossed Soo Locks (St. Marys River) upbound on 28 Dec 2025 21:35 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, 29 Dec 2025 02:35:40 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904880:2025-12-28T22:05:22ZMesabi Miner (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 28 Dec 2025 17:05 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 22:05:22 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316017110:2025-12-28T20:34:20ZNACC Alicudi crossed Soo Locks (St. Marys River) downbound on 28 Dec 2025 15:34 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 20:34:20 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:338866000:2025-12-28T18:48:55ZDirk S. Vanenkevort (VanEnkevort Tug & Barge) crossed Soo Locks (St. Marys River) upbound on 28 Dec 2025 13:48 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, 28 Dec 2025 18:48:55 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316011710:2025-12-28T17:15:54ZAlgoma Harvester (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 28 Dec 2025 12:15 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 17:15:54 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366971370:2025-12-28T09:41:49ZEdwin H Gott (Great Lakes Fleet) crossed Soo Locks (St. Marys River) downbound on 28 Dec 2025 04:41 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 09:41:49 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:368183000:2025-12-28T05:12:51ZGreat Republic (Great Lakes Fleet) crossed Soo Locks (St. Marys River) downbound on 28 Dec 2025 00:12 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, 28 Dec 2025 05:12:51 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316001633:2025-12-28T04:45:37ZCSL Assiniboine (Canada Steamship Lines) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 23:45 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 04:45:37 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367050160:2025-12-28T03:31:34ZBurns Harbor (American Steamship Company) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 22:31 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 28 Dec 2025 03:31:34 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316043882:2025-12-28T02:00:18ZAlgoma Intrepid (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 21:00 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, 28 Dec 2025 02:00:18 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316004370:2025-12-27T23:48:12ZG3 Marquis (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 27 Dec 2025 18:48 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, 27 Dec 2025 23:48:12 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904910:2025-12-27T22:37:01ZKaye E Barker (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 17:37 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, 27 Dec 2025 22:37:01 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938730:2025-12-27T21:18:13ZIndiana Harbor (American Steamship Company) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 16:18 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 27 Dec 2025 21:18:13 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316014060:2025-12-27T18:37:39ZAlgoma Strongfield (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 27 Dec 2025 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.Sat, 27 Dec 2025 18:37:39 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316040355:2025-12-27T16:39:34ZBlair McKeil crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 11:39 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, 27 Dec 2025 16:39:34 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366971360:2025-12-27T16:25:02ZJohn G Munson (Great Lakes Fleet) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 11:25 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 27 Dec 2025 16:25:02 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316006868:2025-12-27T14:55:38ZKathy McKeil crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 09:55 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, 27 Dec 2025 14:55:38 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366906610:2025-12-27T10:50:27ZWalter J McCarthy Jr (American Steamship Company) crossed Soo Locks (St. Marys River) downbound on 27 Dec 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.Sat, 27 Dec 2025 10:50:27 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:249152000:2025-12-27T09:22:47ZMax Cavalier crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 04:22 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 27 Dec 2025 09:22:47 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367120990:2025-12-27T08:37:27ZAmerican Integrity (American Steamship Company) crossed Soo Locks (St. Marys River) upbound on 27 Dec 2025 03:37 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, 27 Dec 2025 08:37:27 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904950:2025-12-27T05:02:48ZLee A Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 27 Dec 2025 00:02 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, 27 Dec 2025 05:02:48 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367121010:2025-12-27T03:40:45ZAmerican Century (American Steamship Company) crossed Soo Locks (St. Marys River) downbound on 26 Dec 2025 22:40 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, 27 Dec 2025 03:40:45 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367082230:2025-12-26T23:50:07ZJoseph L Block (Central Marine Logistics) crossed Soo Locks (St. Marys River) upbound on 26 Dec 2025 18:50 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Dec 2025 23:50:07 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316036089:2025-12-26T17:50:02ZAlgoma Sault (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 26 Dec 2025 12:50 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Dec 2025 17:50:02 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938710:2025-12-26T15:43:47ZAmerican Mariner crossed Soo Locks (St. Marys River) upbound on 26 Dec 2025 10:43 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, 26 Dec 2025 15:43:47 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367480260:2025-12-26T12:11:54ZVictory crossed Soo Locks (St. Marys River) upbound on 26 Dec 2025 07:11 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, 26 Dec 2025 12:11:54 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904910:2025-12-26T10:17:26ZKaye E Barker (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 26 Dec 2025 05:17 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 10:17:26 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366905890:2025-12-26T03:20:54ZJames R Barker (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 22:20 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 26 Dec 2025 03:20:54 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/soo/2025-12/freighterlog:passage:316017110:2025-12-25T20:22:32ZNACC Alicudi crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 15:22 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 20:22:32 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366971330:2025-12-25T18:16:03ZEdgar B Speer (Great Lakes Fleet) crossed Soo Locks (St. Marys River) downbound on 25 Dec 2025 13:16 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 18:16:03 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:368183000:2025-12-25T17:43:07ZGreat Republic (Great Lakes Fleet) crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 12:43 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 17:43:07 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904930:2025-12-25T15:49:12ZHerbert C Jackson (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 25 Dec 2025 10:49 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 15:49:12 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316011710:2025-12-25T15:48:56ZAlgoma Harvester (Algoma Central) crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 10:48 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 15:48:56 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316018031:2025-12-25T15:25:14ZAlgoma Guardian (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 25 Dec 2025 10:25 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 15:25:14 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366971370:2025-12-25T11:29:36ZEdwin H Gott (Great Lakes Fleet) crossed Soo Locks (St. Marys River) upbound on 25 Dec 2025 06:29 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 11:29:36 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938780:2025-12-25T05:42:55ZJohn J Boland crossed Soo Locks (St. Marys River) downbound on 25 Dec 2025 00:42 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 05:42:55 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904950:2025-12-25T04:35:48ZLee A Tregurtha (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) upbound on 24 Dec 2025 23:35 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 04:35:48 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366904880:2025-12-25T02:55:21ZMesabi Miner (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 24 Dec 2025 21:55 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 25 Dec 2025 02:55:21 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938770:2025-12-25T01:05:10ZH Lee White crossed Soo Locks (St. Marys River) upbound on 24 Dec 2025 20:05 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, 25 Dec 2025 01:05:10 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:316011905:2025-12-24T23:57:52ZRobert S Pierson (Algoma Central) crossed Soo Locks (St. Marys River) downbound on 24 Dec 2025 18:57 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, 24 Dec 2025 23:57:52 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:367050550:2025-12-24T23:35:29ZStewart J Cort (The Interlake Steamship Company) crossed Soo Locks (St. Marys River) downbound on 24 Dec 2025 18:35 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, 24 Dec 2025 23:35:29 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366938730:2025-12-24T22:32:41ZIndiana Harbor (American Steamship Company) crossed Soo Locks (St. Marys River) upbound on 24 Dec 2025 17:32 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, 24 Dec 2025 22:32:41 GMT