- IMO
- 7812567
- MMSI
- 366938710
- Call Sign
- WQZ7791
Technical Specifications
Key Figures
Live Tracking
Current Position
Where it waited most
Most time stopped at Buffalo — 41 h across 1 stay.
- 1Buffalo41 h
- 2Rouge River3 h
Derived from the AIS track — runs of near-zero speed (anchored, moored or drifting) snapped to the nearest port. Builds up as we observe the vessel.
Resolved from the live AIS destination. Distance is the real sea route (around land and through canals); the computed ETA is at the vessel’s passage speed. A destination is the crew’s stated intent, not a confirmed fixture.
Intelligence
Risk & Sustainability
This ship has no verified emissions report. We estimate a band D from its segment, size and age (52% confidence).
Estimate, not a reported figure. Within one band 95% of the time on reported peers.
- Rouge River0.1 dJun 29, 2026
- Buffalo1.7 dJun 26, 2026
AIS-derived from our live feed.
Compliance
Safety Record
- GROUNDING - Under power (non-intentional)SeriousJan 7, 2023Old Vessel Point, ONTARIO (ON)
On 07 January 2023, the bulk carrier "AMERICAN MARINER", with 19 people on board, reported having made bottom contact causing damage to its hull rendering the vessel unseaworthy while proceeding westbound in St. Marys River off Sault Ste. Marie, ON. The vessel continued proceeding to its destination.
- TOTAL FAILURE OF ANY MACHINERY OR TECHNICAL SYSTEMMinorSep 15, 2019South Bruce Peninsula, ON., ONTARIO (ON)
On 15 September 2019, the bulk carrier "AMERICAN MARINER" reported being disabled on Lake Huron, ON, due to a loss of electrical power. The vessel was 44 nautical miles W of South Bruce Peninsula, ON.
Recorded marine occurrences naming this vessel.
Operational Status
Activity
Making way at sea speed on its latest broadcast.
Read from the single most-recent AIS broadcast we hold for this hull — we keep no position history, so this is a point-in-time posture, not a dwell inference. Derived in-house from our own AIS feed; weight it by the broadcast age above.
Port calls
2 recent · AIS-detectedArrivals, time in port and the load/discharge inferred from the draught change — detected from AIS track history. An open call means the vessel is still in port (no departure observed yet).
- no cargo change→ · 3 h in port· draught 7.6→7.6 m
- no cargo change→ · 43 h in port· draught 7.6→7.6 m
Method: each call is a run of fixes inside a port’s geofence confirmed by a stop (or an AIS gap); load/discharge is the sign of the draught delta over the call. Indicative — arrivals before our AIS history began read from the first observation.
Where it waits
2 ports · 47 h totalTime-in-port summed by port from the AIS-detected port-call history — the ports this vessel has spent the most time at, longest first.
- Buffalo· USA43 h1 call · 43 h avg
- Rouge River· USA3 h1 call · 3 h avg
Based on 2 completed calls observed since — open calls (no departure yet) are excluded. The distribution sharpens as AIS history accrues.
Composite Risk
Risk Score
Multiple adverse factors, or a hard ship-specific signal, lift this hull above the fleet norm.
A coverage-weighted blend of the 3 components we could read for this hull — the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.
Estimated
Capacity & Classification
Bulker · summer draught 6.7 m · 43.9 t per cm immersion
Estimate only — modelled from deadweight (deadweight regression) using a first-principles hydrostatic model, not measured hydrostatic tables. The design draught it is anchored to is unreliable across the fleet.
density DWT/GT=2.39 is physically implausible for any cargo ship (declared bulker) — likely a tonnage data error
The declared type conflicts with the class implied by the vessel’s size signals — a possible mis-declaration. Inferred via our shared size-based classifier.
Transparency
Risk signals
Behavioural flags raised against this vessel — each shown with the raw evidence behind it. Derived in-house from data we are entitled to publish; informational, not a determination of wrongdoing.
Declared type contradicts the size-implied class
- Audit Confidence
- 0.95
- Beam Loa Ratio
- 0.107
- Deadweight
- 36,751
- Declared Class
- BULKER
- Declared Type
- Bulk Carrier
- Dwt Gt Ratio
- 2.387
- Gross Tonnage
- 15,396
- Reason
- density DWT/GT=2.39 is physically implausible for any cargo ship (declared bulker) — likely a tonnage data error
- Size Implied Class
- BULKER
Method: declared type vs size-implied class (DWT/GT density + beam/LOA fullness). Source: vessel_type_audit (sibling P3#3 job; shared coarse_class classifier).
Signals are a current-state view: a flag clears once the vessel stops tripping its detector. These are screening indicators, not a substitute for your own due diligence.
Commercial
Voyage Estimate
Overview
About This Vessel
MV American Mariner is a diesel-powered lake freighter owned and operated by the American Steamship Company (ASC). This vessel was built in 1980 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology. The ship is 730 feet (220 m) long and 78 feet (24 m) wide, with a carrying capacity of 37,300 tons (at midsummer draft), limestone, grain, coal or iron ore.
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