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

Algoma Discovery

Algoma Central · Gearless bulker · 223 m. Range: Lakes and Seaway. 352 recorded passages across 6 chokepoints.

Last recorded passage

downbound at Welland Canal (Thorold)

27 Dec 2025, 22:48 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 Algoma Discovery is today. Her last recorded passage was 4 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 Algoma Discovery 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 Algoma Discovery 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. Algoma Discovery 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) ALGOMA DISCOVERY
MMSI 316018477
IMO IMO8505848
Call sign CFK9796
Length overall 223 m (732 ft)
Beam 23 m (75 ft)
AIS vessel type Cargo
Hull type Gearless bulker
Operator Algoma Central
Flag Canada

Passage record

  • 352 Passages January 2024 – December 2025
  • 6 Chokepoints of 7 monitored
  • 1 Jan 2024 First in archive UTC date
  • 28 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 10 passages
Date Local time Chokepoint Direction
27 Dec 2025 22:48 EST Welland Canal (Thorold) downbound
24 Dec 2025 23:12 EST Detroit River / Ambassador Bridge upbound
22 Dec 2025 00:31 EST Welland Canal (Thorold) upbound
11 Dec 2025 07:23 EST Welland Canal (Thorold) downbound
10 Dec 2025 01:00 EST Detroit River / Ambassador Bridge downbound
9 Dec 2025 17:55 EST Port Huron / Blue Water Bridge downbound
8 Dec 2025 15:30 EST Soo Locks (St. Marys River) downbound
4 Dec 2025 01:12 EST Port Huron / Blue Water Bridge upbound
3 Dec 2025 19:35 EST Detroit River / Ambassador Bridge upbound
2 Dec 2025 16:49 EST Welland Canal (Thorold) upbound
November 2025 9 passages
Date Local time Chokepoint Direction
25 Nov 2025 17:42 EST Welland Canal (Thorold) downbound
24 Nov 2025 20:45 EST Detroit River / Ambassador Bridge downbound
24 Nov 2025 15:21 EST Port Huron / Blue Water Bridge downbound
23 Nov 2025 19:05 EST Soo Locks (St. Marys River) downbound
21 Nov 2025 12:33 EST Soo Locks (St. Marys River) upbound
20 Nov 2025 14:23 EST Port Huron / Blue Water Bridge upbound
18 Nov 2025 13:40 EST Welland Canal (Thorold) upbound
1 Nov 2025 21:03 EDT Welland Canal (Thorold) downbound
1 Nov 2025 00:15 EDT Detroit River / Ambassador Bridge downbound
October 2025 13 passages
Date Local time Chokepoint Direction
31 Oct 2025 18:47 EDT Port Huron / Blue Water Bridge downbound
30 Oct 2025 23:11 EDT Soo Locks (St. Marys River) downbound
29 Oct 2025 18:45 CDT Superior Entry outbound
29 Oct 2025 08:47 CDT Superior Entry inbound
28 Oct 2025 05:19 EDT Soo Locks (St. Marys River) upbound
27 Oct 2025 04:13 EDT Detroit River / Ambassador Bridge upbound
26 Oct 2025 07:05 EDT Welland Canal (Thorold) upbound
18 Oct 2025 08:11 EDT Welland Canal (Thorold) downbound
17 Oct 2025 11:56 EDT Detroit River / Ambassador Bridge downbound
16 Oct 2025 08:42 EDT Soo Locks (St. Marys River) downbound
13 Oct 2025 10:39 EDT Soo Locks (St. Marys River) upbound
12 Oct 2025 13:15 EDT Port Huron / Blue Water Bridge upbound
12 Oct 2025 07:29 EDT Detroit River / Ambassador Bridge upbound
September 2025 23 passages
Date Local time Chokepoint Direction
26 Sep 2025 08:52 EDT Welland Canal (Thorold) downbound
25 Sep 2025 12:12 EDT Detroit River / Ambassador Bridge downbound
24 Sep 2025 11:09 EDT Soo Locks (St. Marys River) downbound
21 Sep 2025 09:43 EDT Soo Locks (St. Marys River) upbound
20 Sep 2025 12:28 EDT Port Huron / Blue Water Bridge upbound
20 Sep 2025 07:18 EDT Detroit River / Ambassador Bridge upbound
19 Sep 2025 08:23 EDT Welland Canal (Thorold) upbound
16 Sep 2025 16:07 EDT Welland Canal (Thorold) downbound
15 Sep 2025 19:37 EDT Detroit River / Ambassador Bridge downbound
15 Sep 2025 14:02 EDT Port Huron / Blue Water Bridge downbound
14 Sep 2025 18:24 EDT Soo Locks (St. Marys River) downbound
13 Sep 2025 09:49 CDT Superior Entry outbound
13 Sep 2025 03:40 CDT Superior Entry inbound
11 Sep 2025 23:57 EDT Soo Locks (St. Marys River) upbound
11 Sep 2025 04:06 EDT Port Huron / Blue Water Bridge upbound
10 Sep 2025 22:46 EDT Detroit River / Ambassador Bridge upbound
9 Sep 2025 23:54 EDT Welland Canal (Thorold) upbound
5 Sep 2025 20:37 EDT Welland Canal (Thorold) downbound
4 Sep 2025 21:43 EDT Detroit River / Ambassador Bridge downbound
4 Sep 2025 16:10 EDT Port Huron / Blue Water Bridge downbound
3 Sep 2025 20:30 EDT Soo Locks (St. Marys River) downbound
2 Sep 2025 13:40 CDT Superior Entry outbound
2 Sep 2025 04:37 CDT Superior Entry inbound
August 2025 14 passages
Date Local time Chokepoint Direction
30 Aug 2025 13:48 EDT Soo Locks (St. Marys River) upbound
29 Aug 2025 15:35 EDT Port Huron / Blue Water Bridge upbound
29 Aug 2025 10:12 EDT Detroit River / Ambassador Bridge upbound
28 Aug 2025 08:54 EDT Welland Canal (Thorold) upbound
22 Aug 2025 20:31 EDT Detroit River / Ambassador Bridge downbound
22 Aug 2025 15:14 EDT Port Huron / Blue Water Bridge downbound
21 Aug 2025 19:14 EDT Soo Locks (St. Marys River) downbound
19 Aug 2025 18:41 CDT Superior Entry outbound
19 Aug 2025 03:19 CDT Superior Entry inbound
15 Aug 2025 07:20 EDT Soo Locks (St. Marys River) upbound
14 Aug 2025 10:19 EDT Port Huron / Blue Water Bridge upbound
14 Aug 2025 01:35 EDT Detroit River / Ambassador Bridge upbound
3 Aug 2025 02:04 EDT Welland Canal (Thorold) downbound
2 Aug 2025 05:24 EDT Detroit River / Ambassador Bridge downbound
July 2025 21 passages
Date Local time Chokepoint Direction
31 Jul 2025 00:22 EDT Detroit River / Ambassador Bridge upbound
29 Jul 2025 20:19 EDT Welland Canal (Thorold) upbound
27 Jul 2025 11:01 EDT Welland Canal (Thorold) downbound
26 Jul 2025 13:05 EDT Detroit River / Ambassador Bridge downbound
26 Jul 2025 07:41 EDT Port Huron / Blue Water Bridge downbound
25 Jul 2025 10:47 EDT Soo Locks (St. Marys River) downbound
24 Jul 2025 03:47 CDT Superior Entry outbound
23 Jul 2025 09:49 CDT Superior Entry inbound
22 Jul 2025 02:47 EDT Soo Locks (St. Marys River) upbound
21 Jul 2025 07:00 EDT Port Huron / Blue Water Bridge upbound
21 Jul 2025 01:35 EDT Detroit River / Ambassador Bridge upbound
18 Jul 2025 13:29 EDT Welland Canal (Thorold) downbound
17 Jul 2025 15:50 EDT Detroit River / Ambassador Bridge downbound
17 Jul 2025 10:35 EDT Port Huron / Blue Water Bridge downbound
16 Jul 2025 15:24 EDT Soo Locks (St. Marys River) downbound
15 Jul 2025 07:08 CDT Superior Entry outbound
14 Jul 2025 23:26 CDT Superior Entry inbound
13 Jul 2025 10:34 EDT Soo Locks (St. Marys River) upbound
12 Jul 2025 14:41 EDT Port Huron / Blue Water Bridge upbound
12 Jul 2025 09:32 EDT Detroit River / Ambassador Bridge upbound
11 Jul 2025 13:03 EDT Welland Canal (Thorold) upbound
June 2025 15 passages
Date Local time Chokepoint Direction
29 Jun 2025 23:50 EDT Welland Canal (Thorold) downbound
22 Jun 2025 20:22 EDT Welland Canal (Thorold) upbound
12 Jun 2025 10:05 EDT Welland Canal (Thorold) downbound
11 Jun 2025 13:22 EDT Detroit River / Ambassador Bridge downbound
11 Jun 2025 08:18 EDT Port Huron / Blue Water Bridge downbound
10 Jun 2025 12:33 EDT Soo Locks (St. Marys River) downbound
7 Jun 2025 17:55 EDT Soo Locks (St. Marys River) upbound
6 Jun 2025 22:33 EDT Port Huron / Blue Water Bridge upbound
6 Jun 2025 17:00 EDT Detroit River / Ambassador Bridge upbound
5 Jun 2025 19:32 EDT Welland Canal (Thorold) upbound
4 Jun 2025 01:23 EDT Welland Canal (Thorold) downbound
3 Jun 2025 03:50 EDT Detroit River / Ambassador Bridge downbound
2 Jun 2025 22:14 EDT Port Huron / Blue Water Bridge downbound
2 Jun 2025 03:00 EDT Soo Locks (St. Marys River) downbound
31 May 2025 21:13 CDT Superior Entry outbound
May 2025 31 passages
Date Local time Chokepoint Direction
31 May 2025 10:33 CDT Superior Entry inbound
29 May 2025 22:48 EDT Soo Locks (St. Marys River) upbound
29 May 2025 03:37 EDT Port Huron / Blue Water Bridge upbound
28 May 2025 21:50 EDT Detroit River / Ambassador Bridge upbound
28 May 2025 03:49 EDT Welland Canal (Thorold) upbound
26 May 2025 00:28 EDT Welland Canal (Thorold) downbound
25 May 2025 04:02 EDT Detroit River / Ambassador Bridge downbound
24 May 2025 22:22 EDT Port Huron / Blue Water Bridge downbound
24 May 2025 03:03 EDT Soo Locks (St. Marys River) downbound
22 May 2025 22:20 CDT Superior Entry outbound
22 May 2025 07:45 CDT Superior Entry inbound
19 May 2025 08:51 EDT Soo Locks (St. Marys River) upbound
18 May 2025 12:36 EDT Port Huron / Blue Water Bridge upbound
18 May 2025 04:28 EDT Detroit River / Ambassador Bridge upbound
17 May 2025 06:48 EDT Welland Canal (Thorold) upbound
14 May 2025 06:18 EDT Welland Canal (Thorold) downbound
13 May 2025 09:56 EDT Detroit River / Ambassador Bridge downbound
13 May 2025 04:11 EDT Port Huron / Blue Water Bridge downbound
12 May 2025 08:23 EDT Soo Locks (St. Marys River) downbound
10 May 2025 23:28 CDT Superior Entry outbound
10 May 2025 08:12 CDT Superior Entry inbound
8 May 2025 18:38 EDT Soo Locks (St. Marys River) upbound
7 May 2025 22:38 EDT Port Huron / Blue Water Bridge upbound
7 May 2025 16:57 EDT Detroit River / Ambassador Bridge upbound
6 May 2025 19:55 EDT Welland Canal (Thorold) upbound
4 May 2025 16:01 EDT Welland Canal (Thorold) downbound
3 May 2025 19:48 EDT Detroit River / Ambassador Bridge downbound
3 May 2025 14:49 EDT Port Huron / Blue Water Bridge downbound
2 May 2025 19:02 EDT Soo Locks (St. Marys River) downbound
1 May 2025 11:05 CDT Superior Entry outbound
1 May 2025 01:05 CDT Superior Entry inbound
April 2025 19 passages
Date Local time Chokepoint Direction
29 Apr 2025 13:14 EDT Soo Locks (St. Marys River) upbound
28 Apr 2025 17:41 EDT Port Huron / Blue Water Bridge upbound
28 Apr 2025 12:07 EDT Detroit River / Ambassador Bridge upbound
27 Apr 2025 16:17 EDT Welland Canal (Thorold) upbound
16 Apr 2025 22:13 EDT Welland Canal (Thorold) downbound
15 Apr 2025 12:52 EDT Detroit River / Ambassador Bridge downbound
15 Apr 2025 07:26 EDT Port Huron / Blue Water Bridge downbound
14 Apr 2025 11:49 EDT Soo Locks (St. Marys River) downbound
11 Apr 2025 10:55 EDT Soo Locks (St. Marys River) upbound
10 Apr 2025 14:45 EDT Port Huron / Blue Water Bridge upbound
10 Apr 2025 09:54 EDT Detroit River / Ambassador Bridge upbound
9 Apr 2025 09:27 EDT Welland Canal (Thorold) upbound
6 Apr 2025 22:57 EDT Welland Canal (Thorold) downbound
6 Apr 2025 03:11 EDT Detroit River / Ambassador Bridge downbound
5 Apr 2025 21:46 EDT Port Huron / Blue Water Bridge downbound
5 Apr 2025 02:44 EDT Soo Locks (St. Marys River) downbound
3 Apr 2025 22:03 CDT Superior Entry outbound
3 Apr 2025 01:22 CDT Superior Entry inbound
1 Apr 2025 12:34 EDT Soo Locks (St. Marys River) upbound
March 2025 3 passages
Date Local time Chokepoint Direction
31 Mar 2025 05:28 EDT Port Huron / Blue Water Bridge upbound
30 Mar 2025 21:56 EDT Detroit River / Ambassador Bridge upbound
30 Mar 2025 02:38 EDT Welland Canal (Thorold) upbound

2024 season

December 2024 10 passages
Date Local time Chokepoint Direction
27 Dec 2024 08:31 EST Welland Canal (Thorold) downbound
26 Dec 2024 11:18 EST Detroit River / Ambassador Bridge downbound
21 Dec 2024 11:54 EST Soo Locks (St. Marys River) upbound
20 Dec 2024 14:22 EST Port Huron / Blue Water Bridge upbound
20 Dec 2024 07:48 EST Detroit River / Ambassador Bridge upbound
19 Dec 2024 05:22 EST Welland Canal (Thorold) upbound
3 Dec 2024 06:14 EST Welland Canal (Thorold) downbound
2 Dec 2024 08:31 EST Detroit River / Ambassador Bridge downbound
2 Dec 2024 03:23 EST Port Huron / Blue Water Bridge downbound
1 Dec 2024 07:24 EST Soo Locks (St. Marys River) downbound
November 2024 13 passages
Date Local time Chokepoint Direction
26 Nov 2024 22:17 EST Soo Locks (St. Marys River) upbound
25 Nov 2024 19:12 EST Detroit River / Ambassador Bridge upbound
25 Nov 2024 00:09 EST Welland Canal (Thorold) upbound
22 Nov 2024 09:12 EST Welland Canal (Thorold) downbound
21 Nov 2024 11:54 EST Detroit River / Ambassador Bridge downbound
21 Nov 2024 06:50 EST Port Huron / Blue Water Bridge downbound
20 Nov 2024 10:28 EST Soo Locks (St. Marys River) downbound
18 Nov 2024 20:02 CST Superior Entry outbound
18 Nov 2024 11:17 CST Superior Entry inbound
16 Nov 2024 23:42 EST Soo Locks (St. Marys River) upbound
16 Nov 2024 03:09 EST Port Huron / Blue Water Bridge upbound
15 Nov 2024 22:09 EST Detroit River / Ambassador Bridge upbound
15 Nov 2024 02:34 EST Welland Canal (Thorold) upbound
October 2024 17 passages
Date Local time Chokepoint Direction
26 Oct 2024 07:31 EDT Welland Canal (Thorold) downbound
25 Oct 2024 10:47 EDT Detroit River / Ambassador Bridge downbound
25 Oct 2024 05:20 EDT Port Huron / Blue Water Bridge downbound
24 Oct 2024 08:59 EDT Soo Locks (St. Marys River) downbound
21 Oct 2024 09:47 EDT Soo Locks (St. Marys River) upbound
20 Oct 2024 12:39 EDT Port Huron / Blue Water Bridge upbound
20 Oct 2024 07:00 EDT Detroit River / Ambassador Bridge upbound
18 Oct 2024 22:38 EDT Welland Canal (Thorold) upbound
16 Oct 2024 15:09 EDT Welland Canal (Thorold) downbound
15 Oct 2024 17:50 EDT Detroit River / Ambassador Bridge downbound
15 Oct 2024 12:38 EDT Port Huron / Blue Water Bridge downbound
14 Oct 2024 16:55 EDT Soo Locks (St. Marys River) downbound
10 Oct 2024 05:41 CDT Superior Entry outbound
9 Oct 2024 07:46 CDT Superior Entry inbound
6 Oct 2024 10:49 EDT Soo Locks (St. Marys River) upbound
5 Oct 2024 09:01 EDT Port Huron / Blue Water Bridge upbound
4 Oct 2024 09:59 EDT Welland Canal (Thorold) upbound
September 2024 23 passages
Date Local time Chokepoint Direction
24 Sep 2024 13:06 EDT Welland Canal (Thorold) downbound
23 Sep 2024 15:33 EDT Detroit River / Ambassador Bridge downbound
23 Sep 2024 10:49 EDT Port Huron / Blue Water Bridge downbound
22 Sep 2024 15:00 EDT Soo Locks (St. Marys River) downbound
19 Sep 2024 18:50 EDT Soo Locks (St. Marys River) upbound
18 Sep 2024 22:04 EDT Port Huron / Blue Water Bridge upbound
18 Sep 2024 15:50 EDT Detroit River / Ambassador Bridge upbound
17 Sep 2024 13:37 EDT Welland Canal (Thorold) upbound
14 Sep 2024 17:25 EDT Welland Canal (Thorold) downbound
13 Sep 2024 14:04 EDT Detroit River / Ambassador Bridge downbound
13 Sep 2024 08:37 EDT Port Huron / Blue Water Bridge downbound
12 Sep 2024 12:39 EDT Soo Locks (St. Marys River) downbound
11 Sep 2024 06:25 CDT Duluth Ship Canal outbound
9 Sep 2024 16:49 CDT Duluth Ship Canal inbound
8 Sep 2024 00:17 EDT Soo Locks (St. Marys River) upbound
7 Sep 2024 02:37 EDT Port Huron / Blue Water Bridge upbound
6 Sep 2024 21:08 EDT Detroit River / Ambassador Bridge upbound
6 Sep 2024 02:12 EDT Welland Canal (Thorold) upbound
4 Sep 2024 03:18 EDT Welland Canal (Thorold) downbound
3 Sep 2024 05:18 EDT Detroit River / Ambassador Bridge downbound
2 Sep 2024 23:51 EDT Port Huron / Blue Water Bridge downbound
2 Sep 2024 04:46 EDT Soo Locks (St. Marys River) downbound
31 Aug 2024 21:38 CDT Superior Entry outbound
August 2024 8 passages
Date Local time Chokepoint Direction
31 Aug 2024 09:13 CDT Superior Entry inbound
28 Aug 2024 17:57 EDT Soo Locks (St. Marys River) upbound
27 Aug 2024 21:07 EDT Port Huron / Blue Water Bridge upbound
21 Aug 2024 14:24 EDT Port Huron / Blue Water Bridge downbound
20 Aug 2024 12:07 EDT Port Huron / Blue Water Bridge upbound
18 Aug 2024 14:35 EDT Detroit River / Ambassador Bridge upbound
16 Aug 2024 09:53 EDT Welland Canal (Thorold) upbound
31 Jul 2024 22:27 EDT Welland Canal (Thorold) downbound
July 2024 25 passages
Date Local time Chokepoint Direction
30 Jul 2024 02:29 EDT Welland Canal (Thorold) upbound
27 Jul 2024 19:22 EDT Welland Canal (Thorold) downbound
26 Jul 2024 17:43 EDT Detroit River / Ambassador Bridge downbound
26 Jul 2024 12:17 EDT Port Huron / Blue Water Bridge downbound
25 Jul 2024 16:14 EDT Soo Locks (St. Marys River) downbound
24 Jul 2024 04:55 CDT Superior Entry outbound
20 Jul 2024 21:11 CDT Superior Entry inbound
18 Jul 2024 10:44 EDT Soo Locks (St. Marys River) upbound
17 Jul 2024 13:48 EDT Port Huron / Blue Water Bridge upbound
17 Jul 2024 07:59 EDT Detroit River / Ambassador Bridge upbound
16 Jul 2024 10:58 EDT Welland Canal (Thorold) upbound
13 Jul 2024 20:48 EDT Welland Canal (Thorold) downbound
12 Jul 2024 16:29 EDT Detroit River / Ambassador Bridge downbound
12 Jul 2024 11:04 EDT Port Huron / Blue Water Bridge downbound
11 Jul 2024 15:25 EDT Soo Locks (St. Marys River) downbound
10 Jul 2024 04:26 CDT Superior Entry outbound
9 Jul 2024 16:51 CDT Superior Entry inbound
7 Jul 2024 17:06 EDT Soo Locks (St. Marys River) upbound
6 Jul 2024 21:05 EDT Port Huron / Blue Water Bridge upbound
6 Jul 2024 15:28 EDT Detroit River / Ambassador Bridge upbound
5 Jul 2024 19:35 EDT Welland Canal (Thorold) upbound
2 Jul 2024 20:28 EDT Welland Canal (Thorold) downbound
1 Jul 2024 23:45 EDT Detroit River / Ambassador Bridge downbound
1 Jul 2024 18:32 EDT Port Huron / Blue Water Bridge downbound
30 Jun 2024 22:45 EDT Soo Locks (St. Marys River) downbound
June 2024 30 passages
Date Local time Chokepoint Direction
29 Jun 2024 17:38 CDT Superior Entry outbound
29 Jun 2024 01:30 CDT Superior Entry inbound
27 Jun 2024 17:13 EDT Soo Locks (St. Marys River) upbound
26 Jun 2024 20:36 EDT Port Huron / Blue Water Bridge upbound
26 Jun 2024 15:14 EDT Detroit River / Ambassador Bridge upbound
25 Jun 2024 19:46 EDT Welland Canal (Thorold) upbound
23 Jun 2024 04:03 EDT Welland Canal (Thorold) downbound
22 Jun 2024 06:41 EDT Detroit River / Ambassador Bridge downbound
22 Jun 2024 01:19 EDT Port Huron / Blue Water Bridge downbound
21 Jun 2024 05:44 EDT Soo Locks (St. Marys River) downbound
19 Jun 2024 22:17 CDT Superior Entry outbound
19 Jun 2024 12:25 CDT Superior Entry inbound
17 Jun 2024 15:42 EDT Soo Locks (St. Marys River) upbound
16 Jun 2024 20:02 EDT Port Huron / Blue Water Bridge upbound
16 Jun 2024 14:52 EDT Detroit River / Ambassador Bridge upbound
15 Jun 2024 19:56 EDT Welland Canal (Thorold) upbound
13 Jun 2024 18:31 EDT Welland Canal (Thorold) downbound
12 Jun 2024 21:30 EDT Detroit River / Ambassador Bridge downbound
12 Jun 2024 16:13 EDT Port Huron / Blue Water Bridge downbound
11 Jun 2024 20:26 EDT Soo Locks (St. Marys River) downbound
8 Jun 2024 23:20 EDT Soo Locks (St. Marys River) upbound
8 Jun 2024 01:36 EDT Port Huron / Blue Water Bridge upbound
7 Jun 2024 20:18 EDT Detroit River / Ambassador Bridge upbound
7 Jun 2024 01:18 EDT Welland Canal (Thorold) upbound
4 Jun 2024 15:22 EDT Welland Canal (Thorold) downbound
3 Jun 2024 19:40 EDT Detroit River / Ambassador Bridge downbound
3 Jun 2024 13:59 EDT Port Huron / Blue Water Bridge downbound
2 Jun 2024 17:58 EDT Soo Locks (St. Marys River) downbound
1 Jun 2024 08:02 CDT Superior Entry outbound
1 Jun 2024 00:39 CDT Superior Entry inbound
May 2024 30 passages
Date Local time Chokepoint Direction
30 May 2024 10:44 EDT Soo Locks (St. Marys River) upbound
29 May 2024 13:10 EDT Port Huron / Blue Water Bridge upbound
29 May 2024 07:49 EDT Detroit River / Ambassador Bridge upbound
28 May 2024 11:28 EDT Welland Canal (Thorold) upbound
26 May 2024 22:26 EDT Welland Canal (Thorold) downbound
26 May 2024 00:19 EDT Detroit River / Ambassador Bridge downbound
25 May 2024 19:09 EDT Port Huron / Blue Water Bridge downbound
24 May 2024 23:29 EDT Soo Locks (St. Marys River) downbound
23 May 2024 18:35 CDT Duluth Ship Canal outbound
23 May 2024 06:06 CDT Duluth Ship Canal inbound
21 May 2024 23:40 EDT Soo Locks (St. Marys River) upbound
21 May 2024 03:09 EDT Port Huron / Blue Water Bridge upbound
20 May 2024 20:19 EDT Detroit River / Ambassador Bridge upbound
20 May 2024 01:16 EDT Welland Canal (Thorold) upbound
17 May 2024 18:16 EDT Welland Canal (Thorold) downbound
16 May 2024 21:24 EDT Detroit River / Ambassador Bridge downbound
16 May 2024 16:08 EDT Port Huron / Blue Water Bridge downbound
15 May 2024 20:30 EDT Soo Locks (St. Marys River) downbound
14 May 2024 11:56 CDT Superior Entry outbound
14 May 2024 02:23 CDT Superior Entry inbound
12 May 2024 08:22 EDT Soo Locks (St. Marys River) upbound
11 May 2024 11:53 EDT Port Huron / Blue Water Bridge upbound
11 May 2024 06:26 EDT Detroit River / Ambassador Bridge upbound
10 May 2024 10:47 EDT Welland Canal (Thorold) upbound
7 May 2024 14:52 EDT Welland Canal (Thorold) downbound
6 May 2024 18:30 EDT Detroit River / Ambassador Bridge downbound
6 May 2024 13:11 EDT Port Huron / Blue Water Bridge downbound
5 May 2024 17:09 EDT Soo Locks (St. Marys River) downbound
4 May 2024 03:50 CDT Duluth Ship Canal outbound
2 May 2024 16:19 CDT Duluth Ship Canal inbound
April 2024 28 passages
Date Local time Chokepoint Direction
28 Apr 2024 13:07 EDT Soo Locks (St. Marys River) upbound
27 Apr 2024 17:00 EDT Port Huron / Blue Water Bridge upbound
27 Apr 2024 11:41 EDT Detroit River / Ambassador Bridge upbound
26 Apr 2024 15:29 EDT Welland Canal (Thorold) upbound
25 Apr 2024 03:57 EDT Welland Canal (Thorold) downbound
24 Apr 2024 04:41 EDT Detroit River / Ambassador Bridge downbound
23 Apr 2024 23:18 EDT Port Huron / Blue Water Bridge downbound
23 Apr 2024 04:03 EDT Soo Locks (St. Marys River) downbound
21 Apr 2024 21:45 CDT Superior Entry outbound
21 Apr 2024 14:26 CDT Superior Entry inbound
20 Apr 2024 02:59 EDT Soo Locks (St. Marys River) upbound
19 Apr 2024 07:04 EDT Port Huron / Blue Water Bridge upbound
19 Apr 2024 01:47 EDT Detroit River / Ambassador Bridge upbound
18 Apr 2024 07:03 EDT Welland Canal (Thorold) upbound
14 Apr 2024 00:30 EDT Welland Canal (Thorold) downbound
11 Apr 2024 13:14 EDT Detroit River / Ambassador Bridge downbound
11 Apr 2024 07:56 EDT Port Huron / Blue Water Bridge downbound
10 Apr 2024 12:28 EDT Soo Locks (St. Marys River) downbound
9 Apr 2024 01:55 CDT Superior Entry outbound
8 Apr 2024 16:54 CDT Superior Entry inbound
7 Apr 2024 13:43 EDT Soo Locks (St. Marys River) upbound
6 Apr 2024 18:31 EDT Port Huron / Blue Water Bridge upbound
6 Apr 2024 12:59 EDT Detroit River / Ambassador Bridge upbound
5 Apr 2024 17:46 EDT Welland Canal (Thorold) upbound
3 Apr 2024 16:54 EDT Welland Canal (Thorold) downbound
2 Apr 2024 21:48 EDT Detroit River / Ambassador Bridge downbound
2 Apr 2024 16:28 EDT Port Huron / Blue Water Bridge downbound
1 Apr 2024 21:08 EDT Soo Locks (St. Marys River) downbound
March 2024 6 passages
Date Local time Chokepoint Direction
31 Mar 2024 14:18 CDT Superior Entry outbound
30 Mar 2024 22:47 CDT Superior Entry inbound
26 Mar 2024 23:08 EDT Soo Locks (St. Marys River) upbound
26 Mar 2024 03:48 EDT Port Huron / Blue Water Bridge upbound
25 Mar 2024 22:41 EDT Detroit River / Ambassador Bridge upbound
25 Mar 2024 04:07 EDT Welland Canal (Thorold) upbound
January 2024 4 passages
Date Local time Chokepoint Direction
3 Jan 2024 13:59 EST Welland Canal (Thorold) downbound
2 Jan 2024 18:04 EST Detroit River / Ambassador Bridge downbound
2 Jan 2024 12:45 EST Port Huron / Blue Water Bridge downbound
1 Jan 2024 16:13 EST Soo Locks (St. Marys River) downbound