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

Fleet-matched vessel · Canada flag

Algotitan

Algoma Central · Tanker · 143 m. Range: Lakes and Seaway. 139 recorded passages across 4 chokepoints.

Last recorded passage

downbound at Welland Canal (Thorold)

19 Dec 2025, 07:58 EST — ±15 min · see the December 2025 log

This is an archive, not a tracker. The passage record runs January 2024 to December 2025 and ends at 31 Dec 2025. The public AIS archive arrives in quarterly batches and currently runs nine months behind. Nothing on this page tells you where Algotitan is today. Her last recorded passage was 12 days before the archive ends, and that gap is about the record, not necessarily about the ship.

FreighterLog is the record, not the map. For where Algotitan is right now, see BoatNerd's live AIS map, which runs on their own receivers on the lakes, or VesselFinder.

Follow by RSS. Every crossing Algotitan makes goes into a feed of her 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. Algotitan feed · all chokepoints

Specification

Dimensions and identifiers as broadcast over AIS; AIS-reported figures are self-declared by the vessel and are not a registry of record.
Name (AIS) ALGOTITAN
MMSI 316050854
IMO IMO9333802
Call sign VCBA
Length overall 143 m (469 ft)
Beam 23 m (75 ft)
AIS vessel type Tanker
Hull type Tanker
Operator Algoma Central
Flag Canada

Passage record

  • 139 Passages January 2024 – December 2025
  • 4 Chokepoints of 7 monitored
  • 5 Jan 2024 First in archive UTC date
  • 19 Dec 2025 Last in archive UTC date

Where she was recorded

Season passage log

Local time at each chokepoint · grouped by month (UTC buckets)

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

2025 season

December 2025 8 passages
Date Local time Chokepoint Direction
19 Dec 2025 07:58 EST Welland Canal (Thorold) downbound
18 Dec 2025 05:14 EST Detroit River / Ambassador Bridge downbound
15 Dec 2025 22:01 EST Detroit River / Ambassador Bridge upbound
15 Dec 2025 00:13 EST Welland Canal (Thorold) upbound
5 Dec 2025 14:22 EST Welland Canal (Thorold) downbound
4 Dec 2025 15:02 EST Detroit River / Ambassador Bridge downbound
2 Dec 2025 19:44 EST Port Huron / Blue Water Bridge downbound
1 Dec 2025 23:27 EST Straits of Mackinac eastbound
November 2025 8 passages
Date Local time Chokepoint Direction
28 Nov 2025 19:48 EST Straits of Mackinac westbound
27 Nov 2025 21:43 EST Port Huron / Blue Water Bridge upbound
26 Nov 2025 08:07 EST Detroit River / Ambassador Bridge upbound
21 Nov 2025 19:41 EST Welland Canal (Thorold) upbound
14 Nov 2025 23:12 EST Welland Canal (Thorold) downbound
9 Nov 2025 06:28 EST Welland Canal (Thorold) upbound
3 Nov 2025 20:53 EST Welland Canal (Thorold) downbound
1 Nov 2025 08:31 EDT Welland Canal (Thorold) upbound
October 2025 5 passages
Date Local time Chokepoint Direction
26 Oct 2025 09:57 EDT Welland Canal (Thorold) downbound
22 Oct 2025 11:11 EDT Welland Canal (Thorold) upbound
14 Oct 2025 07:16 EDT Welland Canal (Thorold) downbound
13 Oct 2025 07:47 EDT Detroit River / Ambassador Bridge downbound
10 Oct 2025 07:42 EDT Welland Canal (Thorold) upbound
September 2025 9 passages
Date Local time Chokepoint Direction
28 Sep 2025 17:24 EDT Detroit River / Ambassador Bridge downbound
26 Sep 2025 03:54 EDT Detroit River / Ambassador Bridge upbound
25 Sep 2025 08:42 EDT Welland Canal (Thorold) upbound
18 Sep 2025 09:02 EDT Welland Canal (Thorold) downbound
17 Sep 2025 03:27 EDT Detroit River / Ambassador Bridge downbound
15 Sep 2025 06:46 EDT Port Huron / Blue Water Bridge downbound
14 Sep 2025 19:53 EDT Port Huron / Blue Water Bridge upbound
14 Sep 2025 14:40 EDT Detroit River / Ambassador Bridge upbound
12 Sep 2025 11:51 EDT Welland Canal (Thorold) upbound
August 2025 8 passages
Date Local time Chokepoint Direction
31 Aug 2025 09:15 EDT Welland Canal (Thorold) downbound
27 Aug 2025 22:38 EDT Welland Canal (Thorold) upbound
22 Aug 2025 08:29 EDT Welland Canal (Thorold) downbound
21 Aug 2025 06:06 EDT Detroit River / Ambassador Bridge downbound
20 Aug 2025 06:42 EDT Port Huron / Blue Water Bridge downbound
18 Aug 2025 11:24 EDT Port Huron / Blue Water Bridge upbound
13 Aug 2025 13:23 EDT Detroit River / Ambassador Bridge upbound
10 Aug 2025 22:38 EDT Welland Canal (Thorold) upbound
July 2025 7 passages
Date Local time Chokepoint Direction
19 Jul 2025 14:20 EDT Welland Canal (Thorold) downbound
18 Jul 2025 14:26 EDT Detroit River / Ambassador Bridge downbound
14 Jul 2025 11:50 EDT Detroit River / Ambassador Bridge upbound
13 Jul 2025 15:27 EDT Welland Canal (Thorold) upbound
11 Jul 2025 18:32 EDT Welland Canal (Thorold) downbound
9 Jul 2025 17:56 EDT Welland Canal (Thorold) upbound
1 Jul 2025 15:27 EDT Welland Canal (Thorold) downbound
June 2025 7 passages
Date Local time Chokepoint Direction
29 Jun 2025 13:15 EDT Welland Canal (Thorold) upbound
17 Jun 2025 23:12 EDT Welland Canal (Thorold) downbound
16 Jun 2025 22:50 EDT Detroit River / Ambassador Bridge downbound
15 Jun 2025 08:23 EDT Detroit River / Ambassador Bridge upbound
14 Jun 2025 06:30 EDT Welland Canal (Thorold) upbound
4 Jun 2025 16:23 EDT Welland Canal (Thorold) downbound
3 Jun 2025 12:40 EDT Detroit River / Ambassador Bridge downbound
May 2025 4 passages
Date Local time Chokepoint Direction
23 May 2025 05:46 EDT Port Huron / Blue Water Bridge downbound
21 May 2025 17:40 EDT Port Huron / Blue Water Bridge upbound
21 May 2025 11:27 EDT Detroit River / Ambassador Bridge upbound
12 May 2025 17:22 EDT Welland Canal (Thorold) upbound
January 2025 1 passage
Date Local time Chokepoint Direction
1 Jan 2025 16:03 EST Welland Canal (Thorold) downbound

2024 season

December 2024 6 passages
Date Local time Chokepoint Direction
31 Dec 2024 17:04 EST Detroit River / Ambassador Bridge downbound
29 Dec 2024 10:36 EST Detroit River / Ambassador Bridge upbound
28 Dec 2024 15:25 EST Welland Canal (Thorold) upbound
22 Dec 2024 16:12 EST Welland Canal (Thorold) downbound
9 Dec 2024 05:21 EST Welland Canal (Thorold) upbound
1 Dec 2024 10:24 EST Welland Canal (Thorold) downbound
November 2024 8 passages
Date Local time Chokepoint Direction
23 Nov 2024 12:21 EST Welland Canal (Thorold) upbound
21 Nov 2024 07:56 EST Welland Canal (Thorold) downbound
19 Nov 2024 01:39 EST Detroit River / Ambassador Bridge downbound
17 Nov 2024 18:10 EST Port Huron / Blue Water Bridge downbound
17 Nov 2024 02:35 EST Port Huron / Blue Water Bridge upbound
16 Nov 2024 17:23 EST Port Huron / Blue Water Bridge downbound
16 Nov 2024 04:36 EST Port Huron / Blue Water Bridge upbound
3 Nov 2024 02:18 EST Detroit River / Ambassador Bridge upbound
October 2024 8 passages
Date Local time Chokepoint Direction
23 Oct 2024 12:59 EDT Detroit River / Ambassador Bridge upbound
21 Oct 2024 17:57 EDT Welland Canal (Thorold) upbound
14 Oct 2024 17:33 EDT Welland Canal (Thorold) downbound
12 Oct 2024 17:35 EDT Welland Canal (Thorold) upbound
8 Oct 2024 03:53 EDT Welland Canal (Thorold) downbound
7 Oct 2024 04:33 EDT Detroit River / Ambassador Bridge downbound
2 Oct 2024 21:28 EDT Detroit River / Ambassador Bridge upbound
2 Oct 2024 01:47 EDT Welland Canal (Thorold) upbound
September 2024 8 passages
Date Local time Chokepoint Direction
25 Sep 2024 08:57 EDT Welland Canal (Thorold) downbound
24 Sep 2024 10:03 EDT Detroit River / Ambassador Bridge downbound
21 Sep 2024 09:34 EDT Detroit River / Ambassador Bridge upbound
18 Sep 2024 04:25 EDT Welland Canal (Thorold) upbound
13 Sep 2024 09:07 EDT Welland Canal (Thorold) downbound
10 Sep 2024 13:42 EDT Welland Canal (Thorold) upbound
5 Sep 2024 21:19 EDT Welland Canal (Thorold) downbound
4 Sep 2024 20:16 EDT Detroit River / Ambassador Bridge downbound
August 2024 8 passages
Date Local time Chokepoint Direction
25 Aug 2024 02:03 EDT Detroit River / Ambassador Bridge downbound
22 Aug 2024 10:53 EDT Port Huron / Blue Water Bridge downbound
21 Aug 2024 21:57 EDT Port Huron / Blue Water Bridge upbound
21 Aug 2024 14:20 EDT Detroit River / Ambassador Bridge upbound
18 Aug 2024 06:20 EDT Detroit River / Ambassador Bridge downbound
17 Aug 2024 01:33 EDT Detroit River / Ambassador Bridge upbound
16 Aug 2024 03:31 EDT Welland Canal (Thorold) upbound
11 Aug 2024 08:34 EDT Welland Canal (Thorold) downbound
July 2024 7 passages
Date Local time Chokepoint Direction
30 Jul 2024 16:56 EDT Welland Canal (Thorold) upbound
25 Jul 2024 22:14 EDT Welland Canal (Thorold) downbound
22 Jul 2024 02:34 EDT Welland Canal (Thorold) upbound
15 Jul 2024 03:59 EDT Welland Canal (Thorold) downbound
13 Jul 2024 13:51 EDT Welland Canal (Thorold) upbound
8 Jul 2024 04:34 EDT Welland Canal (Thorold) downbound
5 Jul 2024 02:31 EDT Welland Canal (Thorold) upbound
June 2024 8 passages
Date Local time Chokepoint Direction
28 Jun 2024 04:20 EDT Welland Canal (Thorold) downbound
22 Jun 2024 13:46 EDT Detroit River / Ambassador Bridge downbound
20 Jun 2024 10:30 EDT Detroit River / Ambassador Bridge upbound
19 Jun 2024 13:14 EDT Welland Canal (Thorold) upbound
13 Jun 2024 06:39 EDT Welland Canal (Thorold) downbound
9 Jun 2024 14:46 EDT Detroit River / Ambassador Bridge upbound
6 Jun 2024 05:46 EDT Detroit River / Ambassador Bridge upbound
5 Jun 2024 08:22 EDT Welland Canal (Thorold) upbound
May 2024 11 passages
Date Local time Chokepoint Direction
31 May 2024 08:59 EDT Welland Canal (Thorold) downbound
28 May 2024 11:52 EDT Welland Canal (Thorold) upbound
22 May 2024 02:01 EDT Welland Canal (Thorold) downbound
20 May 2024 12:59 EDT Welland Canal (Thorold) upbound
15 May 2024 11:58 EDT Welland Canal (Thorold) downbound
14 May 2024 14:26 EDT Detroit River / Ambassador Bridge downbound
9 May 2024 14:37 EDT Port Huron / Blue Water Bridge downbound
9 May 2024 04:06 EDT Port Huron / Blue Water Bridge upbound
8 May 2024 21:41 EDT Detroit River / Ambassador Bridge upbound
6 May 2024 19:51 EDT Welland Canal (Thorold) upbound
1 May 2024 13:09 EDT Welland Canal (Thorold) downbound
April 2024 6 passages
Date Local time Chokepoint Direction
26 Apr 2024 12:27 EDT Detroit River / Ambassador Bridge downbound
23 Apr 2024 21:05 EDT Detroit River / Ambassador Bridge upbound
21 Apr 2024 04:38 EDT Welland Canal (Thorold) upbound
16 Apr 2024 06:12 EDT Welland Canal (Thorold) downbound
10 Apr 2024 04:33 EDT Welland Canal (Thorold) upbound
2 Apr 2024 04:42 EDT Welland Canal (Thorold) downbound
March 2024 5 passages
Date Local time Chokepoint Direction
31 Mar 2024 10:11 EDT Welland Canal (Thorold) upbound
24 Mar 2024 04:58 EDT Welland Canal (Thorold) downbound
20 Mar 2024 01:01 EDT Detroit River / Ambassador Bridge downbound
6 Mar 2024 13:39 EST Detroit River / Ambassador Bridge upbound
1 Mar 2024 16:26 EST Detroit River / Ambassador Bridge downbound
February 2024 3 passages
Date Local time Chokepoint Direction
24 Feb 2024 10:09 EST Detroit River / Ambassador Bridge upbound
19 Feb 2024 12:46 EST Detroit River / Ambassador Bridge downbound
1 Feb 2024 09:20 EST Detroit River / Ambassador Bridge upbound
January 2024 4 passages
Date Local time Chokepoint Direction
23 Jan 2024 08:56 EST Detroit River / Ambassador Bridge downbound
19 Jan 2024 11:43 EST Detroit River / Ambassador Bridge upbound
9 Jan 2024 06:03 EST Detroit River / Ambassador Bridge downbound
4 Jan 2024 21:05 EST Detroit River / Ambassador Bridge upbound