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

Roerborg

No fleet affiliation on record · Cargo - No additional information · 170 m. Range: Lakes only. 9 recorded passages across 5 chokepoints.

Last recorded passage

downbound at Welland Canal (Thorold)

17 Aug 2025, 16:07 EDT — ±15 min · see the August 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 Roerborg is today. Her last recorded passage was 136 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 Roerborg 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 Roerborg 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. Roerborg 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) ROERBORG
MMSI 244820055
IMO IMO9592599
Call sign PCPO
Length overall 170 m (558 ft)
Beam 20 m (66 ft)
AIS vessel type Cargo - No additional information
Hull type
Operator No fleet match (salty, unaffiliated hull, or an AIS spelling this roster has not yet folded in)
Flag

Passage record

  • 9 Passages January 2024 – December 2025
  • 5 Chokepoints of 7 monitored
  • 2 Aug 2025 First in archive UTC date
  • 17 Aug 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

August 2025 9 passages
Date Local time Chokepoint Direction
17 Aug 2025 16:07 EDT Welland Canal (Thorold) downbound
16 Aug 2025 18:52 EDT Detroit River / Ambassador Bridge downbound
16 Aug 2025 13:25 EDT Port Huron / Blue Water Bridge downbound
15 Aug 2025 15:51 EDT Soo Locks (St. Marys River) downbound
11 Aug 2025 09:08 EDT Soo Locks (St. Marys River) upbound
10 Aug 2025 23:43 EDT Straits of Mackinac eastbound
3 Aug 2025 08:34 EDT Straits of Mackinac westbound
2 Aug 2025 13:37 EDT Port Huron / Blue Water Bridge upbound
2 Aug 2025 07:25 EDT Detroit River / Ambassador Bridge upbound