What kind of ship is Dorothy Ann?

Dorothy Ann is a tug sailing under the flag of United States, built in 1999 by Bay Shipbuilding Company. The vessel is 215 m long with a beam of 21 m.

What sanctions and inspection records does Voydar hold for Dorothy Ann?

Voydar has no matched sanctions record displayed for Dorothy Ann from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Dorothy Ann. Missing records do not establish whether the ship has been detained.

Dorothy Ann

Tug · United States · built 1999 · AIS Class A

IMO8955732MMSI367409260Call signWDL2531Last AIS position Oct 4, 2026, 06:29 UTC

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In short

Dorothy Ann (Tug, United States flag) was last seen on AIS on Oct 4, 2026, 06:29 UTC, under way at 3.7 kn, near Rogers City (Great Lakes). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is CALCITE; its reported draught is 5.9 m (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 16:37 UTC).

Current voyage: from Windsor (departed Oct 3, 2026, 10:32 UTC) to CALCITE

Vessel type: Tug
Flag: United States
Year built: 1999
Gross tonnage: —
Size (length × beam): 215 m × 21 m
Registered owner: —

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Last reported position

received Oct 4, 2026, 06:29 UTC

Position: 45.4304° N, 83.7899° W
Area: Great Lakes
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 3.7 kn
Course: 283°
Heading: 236°

45.4304° N, 83.7899° W

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Last 30 days: 2 port calls (Windsor and Cleveland).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: Dorothy Ann
IMO numberWhat is an IMO number?: 8955732
MMSIWhat is an MMSI?: 367409260
Call signWhat is a call sign?: WDL2531
Flag: United States
Vessel type: Detailed type from WikidataTug
AIS ship type: Local vessel
Gross tonnageGross tonnage vs deadweight: —
Length overall: 215 m
Beam: 21 m
Year built: 1999

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Builder: Bay Shipbuilding Company
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Oct 3, 2026, 10:32 UTC	Left WindsorAIS-detected	Voydar port-call detector (AIS geofence)
Oct 3, 2026, 07:20 UTC	Arrived at WindsorAIS-detected	Voydar port-call detector (AIS geofence)
Oct 2, 2026, 22:53 UTC	Left ClevelandAIS-detected	Voydar port-call detector (AIS geofence)
Sep 30, 2026, 21:15 UTC	Arrived at ClevelandAIS-detected	Voydar port-call detector (AIS geofence)
Dec 16, 2014	Reported departure from STONEPORT, MIAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 15, 2014	Reported arrival at ClevelandAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 13, 2014	Reported departure from STONEPORT, MIAuthority-reported	USACE foreign traffic vessel entrances & clearances

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Incidents & investigations Authority-reported

Accident and incident reports by national investigation boards, and casualty warnings, that concern this ship. Each links to the original.

Occurred Dec 30, 2024Towing/BargeNTSB marine investigations (CAROL)Cleveland, OH, USAPossible match
Dorothy Ann / Pathfinder, Cleveland, OH, USA (NTSB DCA25FM013)Report published Feb 3, 2026
The National Transportation Safety Board determines that the probable cause of the diesel generator engine failure and resulting fire aboard the self-unloading barge Pathfinder was a loss of lube oil to one of the engine’s connecting rods, possibly due to its electrical generator experiencing a sudden block load beyond its design capability resulting from an electrical short in the generator.
The report names a ship "Dorothy Ann" but prints no IMO number; the name matches this vessel only. It may be a different ship.

Source: NTSB marine investigations (CAROL). Courtesy: National Transportation Safety Board. Licence: US Government work (17 U.S.C. §105), public domain.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Windsor CAWND	Oct 3, 2026, 07:20 UTC	Oct 3, 2026, 10:32 UTC	3 h 12 min
Cleveland USCLE	Sep 30, 2026, 21:15 UTC	Oct 2, 2026, 22:53 UTC	2 d 1 h

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
STONEPORT, MI	Departure	Dec 16, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Cleveland USCLE	Arrival	Dec 15, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
STONEPORT, MI	Departure	Dec 13, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Hilo USITO	Departure	Nov 26, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
STONEPORT, MI	Arrival	Nov 15, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ROUGE RIVER, MI (INCLUDED IN PORT OF DETROIT)	Departure	Nov 13, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
STONEPORT, MI	Arrival	Nov 11, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Cleveland USCLE	Departure	Nov 8, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Cleveland USCLE	Arrival	Nov 8, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
STONEPORT, MI	Departure	Nov 6, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Cleveland USCLE	Arrival	Oct 30, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ALPENA HARBOR, MI	Departure	Oct 28, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: June 12, 2002.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Behaviour at sea Voydar-derived

Patterns Voydar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Oct 2, 2026, 23:26 UTC	Draught change Reported draught went from 6.7 m to 5.9 m after leaving Cleveland. Voydar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1	Medium (55%)

When

What we observed

Confidence

Oct 2, 2026, 23:26 UTC

Draught change

Reported draught went from 6.7 m to 5.9 m after leaving Cleveland. Voydar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

Medium (55%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Voydar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

Frequently asked questions

Where is Dorothy Ann now?: Dorothy Ann (Tug, United States flag) was last seen on AIS on Oct 4, 2026, 06:29 UTC, under way at 3.7 kn, near Rogers City (Great Lakes). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was CALCITE (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 16:37 UTC). This report does not confirm the ship’s current route.
What kind of ship is Dorothy Ann?: Dorothy Ann is a tug sailing under the flag of United States, built in 1999 by Bay Shipbuilding Company. The vessel is 215 m long with a beam of 21 m.
What sanctions and inspection records does Voydar hold for Dorothy Ann?: Voydar has no matched sanctions record displayed for Dorothy Ann from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Dorothy Ann. Missing records do not establish whether the ship has been detained.

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