Fleet-matched vessel · United States flag
Undaunted
Interlake Logistics Solutions · Tug/barge unit · 150 m. Range: Lakes only. 128 recorded passages across 4 chokepoints.
Last recorded passage
westbound at Straits of Mackinac
15 Dec 2025, 14:07 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 Undaunted is today. Her last recorded passage was 16 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 Undaunted 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 Undaunted 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. Undaunted feed · all chokepoints
Specification
| Name (AIS) | UNDAUNTED |
|---|---|
| MMSI | 366780000 |
| IMO | — |
| Call sign | WDM2009 |
| Length overall | 150 m (492 ft) |
| Beam | 18 m (59 ft) |
| AIS vessel type | Towing ahead or alongside |
| Hull type | Tug/barge unit |
| Operator | Interlake Logistics Solutions |
| Flag | United States |
Passage record
- 128 Passages January 2024 – December 2025
- 4 Chokepoints of 7 monitored
- 4 Apr 2024 First in archive UTC date
- 15 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 7 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 15 Dec 2025 | 14:07 EST | Straits of Mackinac | westbound |
| 14 Dec 2025 | 13:01 EST | Soo Locks (St. Marys River) | downbound |
| 13 Dec 2025 | 18:45 EST | Soo Locks (St. Marys River) | upbound |
| 13 Dec 2025 | 09:06 EST | Straits of Mackinac | eastbound |
| 6 Dec 2025 | 13:38 EST | Straits of Mackinac | westbound |
| 2 Dec 2025 | 17:28 EST | Port Huron / Blue Water Bridge | upbound |
| 2 Dec 2025 | 10:13 EST | Detroit River / Ambassador Bridge | upbound |
November 2025 6 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 25 Nov 2025 | 18:03 EST | Detroit River / Ambassador Bridge | upbound |
| 25 Nov 2025 | 11:02 EST | Port Huron / Blue Water Bridge | downbound |
| 22 Nov 2025 | 09:58 EST | Straits of Mackinac | eastbound |
| 15 Nov 2025 | 09:52 EST | Straits of Mackinac | westbound |
| 10 Nov 2025 | 05:44 EST | Straits of Mackinac | eastbound |
| 31 Oct 2025 | 22:41 EDT | Straits of Mackinac | westbound |
October 2025 3 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 31 Oct 2025 | 10:12 EDT | Straits of Mackinac | eastbound |
| 29 Oct 2025 | 13:46 EDT | Straits of Mackinac | westbound |
| 29 Oct 2025 | 03:52 EDT | Straits of Mackinac | eastbound |
September 2025 6 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 14 Sep 2025 | 03:45 EDT | Straits of Mackinac | westbound |
| 11 Sep 2025 | 22:40 EDT | Port Huron / Blue Water Bridge | upbound |
| 11 Sep 2025 | 13:31 EDT | Detroit River / Ambassador Bridge | upbound |
| 7 Sep 2025 | 17:06 EDT | Detroit River / Ambassador Bridge | downbound |
| 7 Sep 2025 | 11:20 EDT | Port Huron / Blue Water Bridge | downbound |
| 4 Sep 2025 | 11:52 EDT | Straits of Mackinac | eastbound |
August 2025 8 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 19 Aug 2025 | 12:35 EDT | Straits of Mackinac | westbound |
| 18 Aug 2025 | 18:40 EDT | Straits of Mackinac | eastbound |
| 16 Aug 2025 | 06:13 EDT | Straits of Mackinac | westbound |
| 14 Aug 2025 | 10:37 EDT | Port Huron / Blue Water Bridge | upbound |
| 14 Aug 2025 | 01:17 EDT | Detroit River / Ambassador Bridge | upbound |
| 10 Aug 2025 | 13:08 EDT | Detroit River / Ambassador Bridge | downbound |
| 10 Aug 2025 | 07:32 EDT | Port Huron / Blue Water Bridge | downbound |
| 6 Aug 2025 | 16:36 EDT | Straits of Mackinac | eastbound |
July 2025 4 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 18 Jul 2025 | 13:01 EDT | Straits of Mackinac | westbound |
| 18 Jul 2025 | 01:45 EDT | Soo Locks (St. Marys River) | downbound |
| 17 Jul 2025 | 16:01 EDT | Soo Locks (St. Marys River) | upbound |
| 17 Jul 2025 | 04:15 EDT | Straits of Mackinac | eastbound |
June 2025 6 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 28 Jun 2025 | 23:47 EDT | Straits of Mackinac | westbound |
| 27 Jun 2025 | 00:15 EDT | Port Huron / Blue Water Bridge | upbound |
| 26 Jun 2025 | 13:53 EDT | Detroit River / Ambassador Bridge | upbound |
| 20 Jun 2025 | 14:47 EDT | Detroit River / Ambassador Bridge | downbound |
| 20 Jun 2025 | 01:59 EDT | Port Huron / Blue Water Bridge | downbound |
| 18 Jun 2025 | 19:41 EDT | Straits of Mackinac | eastbound |
May 2025 9 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 31 May 2025 | 08:07 EDT | Straits of Mackinac | eastbound |
| 22 May 2025 | 09:17 EDT | Straits of Mackinac | westbound |
| 18 May 2025 | 07:13 EDT | Straits of Mackinac | eastbound |
| 15 May 2025 | 23:13 EDT | Straits of Mackinac | westbound |
| 14 May 2025 | 02:20 EDT | Port Huron / Blue Water Bridge | upbound |
| 13 May 2025 | 18:20 EDT | Detroit River / Ambassador Bridge | upbound |
| 10 May 2025 | 12:00 EDT | Detroit River / Ambassador Bridge | downbound |
| 10 May 2025 | 05:25 EDT | Port Huron / Blue Water Bridge | downbound |
| 8 May 2025 | 18:38 EDT | Straits of Mackinac | eastbound |
April 2025 6 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 24 Apr 2025 | 13:22 EDT | Straits of Mackinac | westbound |
| 24 Apr 2025 | 02:40 EDT | Soo Locks (St. Marys River) | downbound |
| 22 Apr 2025 | 13:04 EDT | Soo Locks (St. Marys River) | upbound |
| 21 Apr 2025 | 14:52 EDT | Straits of Mackinac | eastbound |
| 11 Apr 2025 | 17:12 EDT | Straits of Mackinac | westbound |
| 9 Apr 2025 | 13:43 EDT | Straits of Mackinac | eastbound |
2024 season
December 2024 4 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 23 Dec 2024 | 06:12 EST | Straits of Mackinac | westbound |
| 21 Dec 2024 | 10:26 EST | Straits of Mackinac | eastbound |
| 12 Dec 2024 | 22:05 EST | Straits of Mackinac | westbound |
| 10 Dec 2024 | 19:42 EST | Straits of Mackinac | eastbound |
November 2024 8 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 29 Nov 2024 | 22:56 EST | Straits of Mackinac | westbound |
| 29 Nov 2024 | 07:44 EST | Soo Locks (St. Marys River) | downbound |
| 28 Nov 2024 | 17:55 EST | Soo Locks (St. Marys River) | upbound |
| 26 Nov 2024 | 11:55 EST | Port Huron / Blue Water Bridge | upbound |
| 25 Nov 2024 | 23:39 EST | Detroit River / Ambassador Bridge | upbound |
| 16 Nov 2024 | 17:39 EST | Detroit River / Ambassador Bridge | downbound |
| 16 Nov 2024 | 12:04 EST | Port Huron / Blue Water Bridge | downbound |
| 12 Nov 2024 | 06:39 EST | Straits of Mackinac | eastbound |
October 2024 5 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 24 Oct 2024 | 17:43 EDT | Straits of Mackinac | westbound |
| 22 Oct 2024 | 08:54 EDT | Straits of Mackinac | eastbound |
| 16 Oct 2024 | 02:32 EDT | Straits of Mackinac | westbound |
| 15 Oct 2024 | 13:26 EDT | Straits of Mackinac | eastbound |
| 30 Sep 2024 | 21:23 EDT | Straits of Mackinac | westbound |
September 2024 8 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 29 Sep 2024 | 03:12 EDT | Straits of Mackinac | eastbound |
| 22 Sep 2024 | 17:55 EDT | Straits of Mackinac | westbound |
| 20 Sep 2024 | 07:05 EDT | Port Huron / Blue Water Bridge | upbound |
| 19 Sep 2024 | 22:58 EDT | Detroit River / Ambassador Bridge | upbound |
| 15 Sep 2024 | 05:54 EDT | Detroit River / Ambassador Bridge | downbound |
| 14 Sep 2024 | 23:37 EDT | Port Huron / Blue Water Bridge | downbound |
| 13 Sep 2024 | 11:25 EDT | Straits of Mackinac | eastbound |
| 2 Sep 2024 | 00:58 EDT | Straits of Mackinac | westbound |
August 2024 11 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 31 Aug 2024 | 06:20 EDT | Straits of Mackinac | eastbound |
| 26 Aug 2024 | 06:05 EDT | Straits of Mackinac | westbound |
| 25 Aug 2024 | 19:46 EDT | Soo Locks (St. Marys River) | downbound |
| 25 Aug 2024 | 04:37 EDT | Soo Locks (St. Marys River) | upbound |
| 23 Aug 2024 | 05:36 EDT | Port Huron / Blue Water Bridge | upbound |
| 22 Aug 2024 | 20:35 EDT | Detroit River / Ambassador Bridge | upbound |
| 16 Aug 2024 | 00:05 EDT | Detroit River / Ambassador Bridge | downbound |
| 15 Aug 2024 | 17:21 EDT | Port Huron / Blue Water Bridge | downbound |
| 12 Aug 2024 | 11:15 EDT | Straits of Mackinac | eastbound |
| 5 Aug 2024 | 10:29 EDT | Straits of Mackinac | westbound |
| 2 Aug 2024 | 19:04 EDT | Straits of Mackinac | eastbound |
July 2024 8 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 23 Jul 2024 | 18:12 EDT | Straits of Mackinac | westbound |
| 20 Jul 2024 | 17:35 EDT | Straits of Mackinac | eastbound |
| 10 Jul 2024 | 14:37 EDT | Straits of Mackinac | westbound |
| 8 Jul 2024 | 18:41 EDT | Port Huron / Blue Water Bridge | upbound |
| 8 Jul 2024 | 07:55 EDT | Detroit River / Ambassador Bridge | upbound |
| 5 Jul 2024 | 01:52 EDT | Detroit River / Ambassador Bridge | downbound |
| 4 Jul 2024 | 19:18 EDT | Port Huron / Blue Water Bridge | downbound |
| 3 Jul 2024 | 03:41 EDT | Port Huron / Blue Water Bridge | upbound |
June 2024 11 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 29 Jun 2024 | 12:32 EDT | Detroit River / Ambassador Bridge | downbound |
| 29 Jun 2024 | 05:50 EDT | Port Huron / Blue Water Bridge | downbound |
| 26 Jun 2024 | 15:06 EDT | Straits of Mackinac | eastbound |
| 16 Jun 2024 | 10:21 EDT | Straits of Mackinac | westbound |
| 16 Jun 2024 | 00:42 EDT | Straits of Mackinac | eastbound |
| 9 Jun 2024 | 17:05 EDT | Straits of Mackinac | westbound |
| 9 Jun 2024 | 03:34 EDT | Soo Locks (St. Marys River) | downbound |
| 8 Jun 2024 | 18:38 EDT | Soo Locks (St. Marys River) | upbound |
| 8 Jun 2024 | 07:39 EDT | Straits of Mackinac | eastbound |
| 6 Jun 2024 | 09:27 EDT | Straits of Mackinac | westbound |
| 4 Jun 2024 | 17:02 EDT | Straits of Mackinac | eastbound |
May 2024 10 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 26 May 2024 | 15:56 EDT | Straits of Mackinac | westbound |
| 22 May 2024 | 06:05 EDT | Straits of Mackinac | eastbound |
| 10 May 2024 | 03:34 EDT | Straits of Mackinac | westbound |
| 8 May 2024 | 23:40 EDT | Soo Locks (St. Marys River) | downbound |
| 8 May 2024 | 15:26 EDT | Soo Locks (St. Marys River) | upbound |
| 8 May 2024 | 01:00 EDT | Straits of Mackinac | eastbound |
| 2 May 2024 | 20:12 EDT | Straits of Mackinac | westbound |
| 2 May 2024 | 05:28 EDT | Soo Locks (St. Marys River) | downbound |
| 1 May 2024 | 16:28 EDT | Soo Locks (St. Marys River) | upbound |
| 1 May 2024 | 00:40 EDT | Straits of Mackinac | eastbound |
April 2024 8 passages
| Date | Local time | Chokepoint | Direction |
|---|---|---|---|
| 24 Apr 2024 | 09:27 EDT | Straits of Mackinac | westbound |
| 21 Apr 2024 | 21:39 EDT | Port Huron / Blue Water Bridge | upbound |
| 21 Apr 2024 | 13:08 EDT | Detroit River / Ambassador Bridge | upbound |
| 16 Apr 2024 | 12:06 EDT | Detroit River / Ambassador Bridge | downbound |
| 16 Apr 2024 | 06:03 EDT | Port Huron / Blue Water Bridge | downbound |
| 11 Apr 2024 | 17:13 EDT | Straits of Mackinac | eastbound |
| 6 Apr 2024 | 07:24 EDT | Straits of Mackinac | westbound |
| 4 Apr 2024 | 10:05 EDT | Straits of Mackinac | eastbound |