FreighterLog The record of Great Lakes shipping

Archive: January 2024 to December 2025, 28,207 passages. Seaway transits checked hourly. Last checked 2026-09-23 18:00 UTC — 14:00 EDT. NOAA publishes in quarterly batches, and the archive currently runs nine months behind.

Archive to December 2025 · Seaway checked 2026-09-23 18:00 UTC — 14:00 EDT

Chokepoint

Welland Canal (Thorold)

3,612 recorded passages by 114 distinct vessels between January 2024 and December 2025. Traffic here is described as downbound or upbound; times on this page are Eastern time.

Busiest single day

Wednesday, 30 April 2025 — 15 passages

Counted on the local calendar date at this chokepoint. 1 other day tied at the same count. See the April 2025 log .

Viewing notes

Our gate line crosses the canal on the Thorold stretch, where boats are working their way up or down the Niagara Escarpment. Downbound here means heading north toward Lake Ontario and the sea. 3,612 crossings by 114 vessels, and not one of them a thousand-footer: the Seaway locks are 766 feet long, so the biggest lakers never reach this water. Lock 3 in St. Catharines and the Lock 7 complex in Thorold both have public viewing platforms, and the canal closes for the winter along with the rest of the Seaway.

Want to see what is out there now? BoatNerd has the live map. This page has what already passed.

Follow by RSS. Every crossing of Welland Canal (Thorold) goes into a feed of its own, added when the next batch of the public AIS archive is processed. It is a file on this domain: no account, no email address, and nothing that reports back. Welland Canal (Thorold) feed · all chokepoints

Monthly traffic

All monthly logs →

Recorded passages per month at Welland Canal (Thorold). Months are UTC buckets, matching the archive's monthly source files. Select a bar for that month's log.

Winter gaps are real: when the locks close and the lakes trade stops, the record goes quiet. A short bar is a quiet month, not a missing one. The archive covers every month in the range.

Most recent passages

Last 120 in the archive

The most recent recorded transits of Welland Canal (Thorold), newest first.
Date Local time Vessel Direction
31 Dec 2025 17:31 EST Algoma Intrepid downbound
31 Dec 2025 12:29 EST Max Cavalier downbound
31 Dec 2025 10:47 EST CSL Assiniboine downbound
30 Dec 2025 14:24 EST Blair McKeil downbound
29 Dec 2025 04:11 EST John D Leitch downbound
29 Dec 2025 01:28 EST Algoma Guardian downbound
28 Dec 2025 22:56 EST Radcliffe R Latimer upbound
28 Dec 2025 17:41 EST Algoma Niagara downbound
28 Dec 2025 14:50 EST Algosolis downbound
28 Dec 2025 12:40 EST Algoterra upbound
28 Dec 2025 11:39 EST McKeil Spirit downbound
27 Dec 2025 22:48 EST Algoma Discovery downbound
27 Dec 2025 22:02 EST Baie Comeau downbound
27 Dec 2025 17:27 EST Evans Spirit upbound
27 Dec 2025 09:56 EST Algosolis upbound
27 Dec 2025 04:49 EST CSL Tadoussac upbound
26 Dec 2025 04:12 EST John D Leitch upbound
25 Dec 2025 20:20 EST Thunder Bay upbound
25 Dec 2025 18:10 EST G3 Marquis upbound
25 Dec 2025 16:54 EST Oakglen upbound
25 Dec 2025 15:41 EST RT HON Paul J Martin downbound
25 Dec 2025 13:45 EST Algoma Strongfield upbound
25 Dec 2025 10:24 EST Paul A. Desgagnes downbound
25 Dec 2025 09:34 EST Polsteam Dabie downbound
25 Dec 2025 05:11 EST Sea Eagle II downbound
25 Dec 2025 02:43 EST McKeil Spirit upbound
25 Dec 2025 00:51 EST Alicia G downbound
25 Dec 2025 00:26 EST Atlantic Huron downbound
24 Dec 2025 19:36 EST Leo A McArthur downbound
24 Dec 2025 15:34 EST John D Leitch downbound
24 Dec 2025 14:09 EST Algoma Niagara upbound
24 Dec 2025 11:12 EST Algoma Sault upbound
24 Dec 2025 08:37 EST Hudsongracht downbound
24 Dec 2025 01:28 EST Noelle G downbound
24 Dec 2025 01:07 EST Capt. Henry Jackman downbound
23 Dec 2025 16:49 EST Algoma Buffalo upbound
23 Dec 2025 14:53 EST Mark W. Barker upbound
23 Dec 2025 12:13 EST CSL Tadoussac downbound
23 Dec 2025 06:35 EST Algoma Harvester upbound
22 Dec 2025 18:57 EST Leo A McArthur upbound
22 Dec 2025 17:06 EST NACC Alicudi upbound
22 Dec 2025 10:15 EST Blair McKeil upbound
22 Dec 2025 09:19 EST Whitefish Bay downbound
22 Dec 2025 08:14 EST Wilf Seymour downbound
22 Dec 2025 05:12 EST Federal Oshima downbound
22 Dec 2025 00:31 EST Algoma Discovery upbound
21 Dec 2025 17:08 EST CSL St-Laurent downbound
21 Dec 2025 14:44 EST Algonova downbound
21 Dec 2025 12:36 EST Polsteam Rudno downbound
21 Dec 2025 11:58 EST Heemskerkgracht downbound
21 Dec 2025 08:21 EST Baie St Paul downbound
21 Dec 2025 05:17 EST Algoma Buffalo downbound
21 Dec 2025 01:15 EST Noelle G upbound
21 Dec 2025 01:05 EST John D Leitch upbound
21 Dec 2025 00:23 EST CSL Tadoussac upbound
20 Dec 2025 20:57 EST Algoma Compass downbound
20 Dec 2025 19:49 EST CSL Assiniboine upbound
20 Dec 2025 15:38 EST Algoma Equinox downbound
20 Dec 2025 14:16 EST Paul A. Desgagnes upbound
20 Dec 2025 14:15 EST Mark W. Barker downbound
20 Dec 2025 08:24 EST Kaministiqua downbound
20 Dec 2025 04:47 EST Algoma Bear downbound
19 Dec 2025 07:58 EST Algotitan downbound
18 Dec 2025 22:37 EST John D Leitch downbound
18 Dec 2025 15:17 EST Paul A. Desgagnes downbound
18 Dec 2025 13:42 EST Polsteam Dabie upbound
18 Dec 2025 11:57 EST Algoterra downbound
18 Dec 2025 10:51 EST Federal Welland downbound
18 Dec 2025 07:58 EST CSL Tadoussac downbound
18 Dec 2025 04:22 EST Algoma Guardian upbound
17 Dec 2025 17:17 EST CSL Welland downbound
17 Dec 2025 14:32 EST Algoma Buffalo upbound
17 Dec 2025 11:23 EST Federal Clyde downbound
17 Dec 2025 06:41 EST CSL Laurentien downbound
16 Dec 2025 20:08 EST Algoma Mariner downbound
16 Dec 2025 18:56 EST Wilf Seymour upbound
16 Dec 2025 12:37 EST Algoma Bear upbound
16 Dec 2025 10:11 EST Algosolis downbound
16 Dec 2025 06:55 EST Algoma Compass upbound
16 Dec 2025 04:42 EST Alicia G upbound
16 Dec 2025 03:11 EST Algocanada downbound
16 Dec 2025 01:16 EST Algoma Niagara downbound
15 Dec 2025 22:36 EST Capt. Henry Jackman upbound
15 Dec 2025 17:41 EST RT HON Paul J Martin upbound
15 Dec 2025 11:41 EST Algoma Buffalo downbound
15 Dec 2025 03:49 EST Algoberta upbound
15 Dec 2025 00:13 EST Algotitan upbound
14 Dec 2025 20:30 EST Algoma Bear downbound
14 Dec 2025 17:31 EST Algoma Compass downbound
14 Dec 2025 00:12 EST Whitefish Bay upbound
13 Dec 2025 18:48 EST Leo A McArthur downbound
13 Dec 2025 15:07 EST Sea Eagle II upbound
13 Dec 2025 14:56 EST Algoterra upbound
13 Dec 2025 12:59 EST Lubie downbound
13 Dec 2025 11:37 EST G3 Marquis downbound
13 Dec 2025 11:07 EST John D Leitch upbound
13 Dec 2025 04:36 EST Atlantic Huron upbound
13 Dec 2025 03:35 EST Gaia Desgagnes downbound
12 Dec 2025 11:55 EST Federal Minnesota downbound
12 Dec 2025 10:51 EST Florence Spirit downbound
11 Dec 2025 20:09 EST Algosolis upbound
11 Dec 2025 08:12 EST NACC Alicudi downbound
11 Dec 2025 07:23 EST Algoma Discovery downbound
11 Dec 2025 06:19 EST CSL Niagara downbound
11 Dec 2025 01:36 EST CSL St-Laurent upbound
11 Dec 2025 00:13 EST Helena G downbound
10 Dec 2025 21:32 EST Algoma Harvester downbound
10 Dec 2025 20:40 EST Algoma Compass upbound
10 Dec 2025 14:17 EST Baie Comeau upbound
10 Dec 2025 03:15 EST Baie St Paul upbound
9 Dec 2025 20:30 EST Paul A. Desgagnes upbound
9 Dec 2025 17:43 EST Algoma Equinox upbound
9 Dec 2025 16:28 EST Algoma Conveyor downbound
9 Dec 2025 08:43 EST Gaia Desgagnes upbound
9 Dec 2025 07:31 EST Algoma Compass downbound
9 Dec 2025 06:57 EST Florence Spirit upbound
9 Dec 2025 05:50 EST Kaministiqua upbound
9 Dec 2025 04:17 EST CSL Welland upbound
9 Dec 2025 00:38 EST Evans Spirit downbound
8 Dec 2025 23:31 EST CSL Laurentien upbound

Times are interpolated from AIS track samples, good to about fifteen minutes, and shown in Eastern time. A passage is a track crossing our gate line, not an official lock record.

Monthly logs