SS St. Marys Challenger
ship · built 1906
In short
SS St. Marys Challenger (ship) has no AIS position on record with Voydar. Managing owner (USCG): PORT CITY STEAMSHIP HOLDING COMPANY INC (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)).
- Vessel type
- ship
- Flag
- —
- Year built
- 1906
- Gross tonnage
- 6,969
- Size (length × beam)
- 35 m
- Managing owner (USCG)
- PORT CITY STEAMSHIP HOLDING COMPANY INC
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Last reported position
No AIS position on record for this vessel. Identity and particulars are below.
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Try the live demo, no sign-upIdentity & particulars
- Name
- SS St. Marys Challenger
- IMO numberWhat is an IMO number?
- 5009984
- MMSIWhat is an MMSI?
- —
- Call signWhat is a call sign?
- —
- Flag
- —
- Vessel type
- ship
- Gross tonnageGross tonnage vs deadweight
- 6,969
- Length overall
- 35 m
- Beam
- —
- Year built
- 1906
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.
- Managing owner (USCG)
- PORT CITY STEAMSHIP HOLDING COMPANY INC(not linked to a company record)Source: US Coast Guard — Merchant Vessels of the United States (documented vessels) · reported · confidence 0.9 · retrieved Oct 6, 2026Coast Guard documentation record (2026-09 file) matched to this ship by IMO number. The managing owner is the company the Coast Guard has on record for the ship's certificate of documentation.
- Builder
- 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 |
|---|---|---|
| Reported arrival at MilwaukeeAuthority-reported | USACE foreign traffic vessel entrances & clearances | |
| Reported arrival at MilwaukeeAuthority-reported | USACE foreign traffic vessel entrances & clearances | |
| Reported departure from MilwaukeeAuthority-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.
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.
Reported by authorities Authority-reported
| Port | Record | Date (UTC) | Berth | Source |
|---|---|---|---|---|
| Milwaukee USMKE | Arrival | Sep 22, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | May 27, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Departure | May 24, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | Dec 1, 2015(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Departure | Nov 28, 2015(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | Jun 19, 2015(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Departure | Jun 15, 2015(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | Dec 14, 2014(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Departure | Dec 11, 2014(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | Sep 13, 2013(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Departure | Sep 10, 2013(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Milwaukee USMKE | Arrival | May 19, 2013(date only) | — | USACE foreign traffic vessel entrances & clearances |
Records published by the authority named on each row. Earliest record for this ship: August 30, 2002.
Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.
About SS St. Marys Challenger
The SS St. Marys Challenger is a freight-carrying vessel operating on the North American Great Lakes built in 1906. Originally an ore boat, she spent most of her career as a cement carrier when much larger ore boats became common. After a 107-year-long working career as a self-propelled boat, she was converted into a barge and paired with the tug Prentiss Brown as an articulated tug-barge. Before conversion, she was the oldest operating self-propelled lake freighter on the Great Lakes, as well as being one of the last freight-carrying vessels on the Great Lakes to be powered by steam engines.
Summary from Wikipedia, licensed CC BY-SA.
Frequently asked questions
- Where is SS St. Marys Challenger now?
- Voydar has no displayable AIS position for SS St. Marys Challenger in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.
- What kind of ship is SS St. Marys Challenger?
- SS St. Marys Challenger is a ship, built in 1906 by Great Lakes Engineering Works. The vessel is 35 m long and has a gross tonnage of 6,969.
- Who is recorded as the owner or manager of SS St. Marys Challenger?
- PORT CITY STEAMSHIP HOLDING COMPANY INC is recorded as Managing owner (USCG) for SS St. Marys Challenger (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)). This source record does not independently confirm today’s ownership or management.
- What sanctions and inspection records does Voydar hold for SS St. Marys Challenger?
- Voydar has no matched sanctions record displayed for SS St. Marys Challenger 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 SS St. Marys Challenger. Missing records do not establish whether the ship has been detained.
Neighbouring IMO numbers
IMO numbers are issued in sequence. These are the nearest numbers below and above this ship's that have a full Voydar profile.
Use this data
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