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

Observed lakes vessel

Muntgracht

No fleet affiliation on record · Cargo · 142 m. Range: Lakes and Seaway. 39 recorded passages across 6 chokepoints.

Last recorded passage

downbound at Welland Canal (Thorold)

7 Oct 2025, 13:44 EDT — ±15 min · see the October 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 Muntgracht is today. Her last recorded passage was 85 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 Muntgracht 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 Muntgracht 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. Muntgracht 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) MUNTGRACHT
MMSI 246771000
IMO IMO9571545
Call sign PCJH
Length overall 142 m (466 ft)
Beam 19 m (62 ft)
AIS vessel type Cargo
Hull type
Operator No fleet match (salty, unaffiliated hull, or an AIS spelling this roster has not yet folded in)
Flag

Passage record

  • 39 Passages January 2024 – December 2025
  • 6 Chokepoints of 7 monitored
  • 28 Jun 2024 First in archive UTC date
  • 7 Oct 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

October 2025 4 passages
Date Local time Chokepoint Direction
7 Oct 2025 13:44 EDT Welland Canal (Thorold) downbound
6 Oct 2025 18:59 EDT Detroit River / Ambassador Bridge downbound
6 Oct 2025 08:50 EDT Port Huron / Blue Water Bridge downbound
5 Oct 2025 16:38 EDT Straits of Mackinac eastbound
September 2025 4 passages
Date Local time Chokepoint Direction
30 Sep 2025 18:31 EDT Straits of Mackinac westbound
30 Sep 2025 03:38 EDT Port Huron / Blue Water Bridge upbound
29 Sep 2025 21:54 EDT Detroit River / Ambassador Bridge upbound
29 Sep 2025 02:15 EDT Welland Canal (Thorold) upbound
July 2025 7 passages
Date Local time Chokepoint Direction
14 Jul 2025 14:07 EDT Welland Canal (Thorold) downbound
13 Jul 2025 15:29 EDT Detroit River / Ambassador Bridge downbound
13 Jul 2025 10:27 EDT Port Huron / Blue Water Bridge downbound
12 Jul 2025 18:45 EDT Straits of Mackinac eastbound
6 Jul 2025 06:27 EDT Port Huron / Blue Water Bridge upbound
6 Jul 2025 01:17 EDT Detroit River / Ambassador Bridge upbound
5 Jul 2025 06:42 EDT Welland Canal (Thorold) upbound
May 2025 10 passages
Date Local time Chokepoint Direction
26 May 2025 09:30 EDT Welland Canal (Thorold) downbound
25 May 2025 12:00 EDT Detroit River / Ambassador Bridge downbound
25 May 2025 06:59 EDT Port Huron / Blue Water Bridge downbound
24 May 2025 10:28 EDT Soo Locks (St. Marys River) downbound
20 May 2025 15:49 EDT Soo Locks (St. Marys River) upbound
20 May 2025 07:07 EDT Straits of Mackinac eastbound
17 May 2025 19:39 EDT Straits of Mackinac westbound
16 May 2025 22:36 EDT Port Huron / Blue Water Bridge upbound
16 May 2025 15:33 EDT Detroit River / Ambassador Bridge upbound
14 May 2025 16:06 EDT Welland Canal (Thorold) upbound

2024 season

August 2024 2 passages
Date Local time Chokepoint Direction
26 Aug 2024 15:46 EDT Welland Canal (Thorold) downbound
22 Aug 2024 09:28 EDT Welland Canal (Thorold) upbound
July 2024 8 passages
Date Local time Chokepoint Direction
20 Jul 2024 16:49 EDT Welland Canal (Thorold) downbound
19 Jul 2024 18:10 EDT Detroit River / Ambassador Bridge downbound
19 Jul 2024 13:10 EDT Port Huron / Blue Water Bridge downbound
18 Jul 2024 21:21 EDT Straits of Mackinac eastbound
6 Jul 2024 15:53 EDT Straits of Mackinac westbound
6 Jul 2024 08:54 EDT Soo Locks (St. Marys River) downbound
4 Jul 2024 22:10 CDT Duluth Ship Canal outbound
1 Jul 2024 04:06 CDT Duluth Ship Canal inbound
June 2024 4 passages
Date Local time Chokepoint Direction
29 Jun 2024 22:56 EDT Soo Locks (St. Marys River) upbound
29 Jun 2024 03:11 EDT Port Huron / Blue Water Bridge upbound
28 Jun 2024 21:57 EDT Detroit River / Ambassador Bridge upbound
28 Jun 2024 03:54 EDT Welland Canal (Thorold) upbound