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MM 312

Tank Barge · Barge class · Built 2010s · USCG Heartland District (CGD-H) · Other hulls named MM 312 · MAGNOLIA MARINE TRANSPORT CO. operator of record, 2023

MM 312 is a 2015 tank barge. The Coast Guard has recorded 15 inspections since 2015, most recently in November 2025, along with 1 deficiency and 1 casualty investigation in 2023.

Records from 2015 to 2025. Most recent: inspection, 5 November 2025.

Built: 2015
Last inspected: 5 November 2025
Documentation: Valid · documentation file of 10 September 2026
Inspections: 15
Deficiencies: 1 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 1 investigation · 2023
Inspected with: 2 other vessels

Identity

1257533

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1323991

Flag

UNITED STATES

MMSI

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Maury page id

psix-1323991

Inspections, by type

…physical examinations13

…administrative events1

…with no type recorded1

Years with a record 10 calendar years (2015–2025)

The 15 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Coast Guard record current through 13 September 2026, retrieved 18 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Barge class in Maury's sources begin in 1972.

Documentation record

Registered dimensions (L × B × D)297.5 ft × 54.0 ft × 12.0 ft

Registered tonnagegross 1,619 / net 1,619

ITC dimensions (L × B × D)Not recorded

ITC tonnageNot recorded

BuilderTRINITY MARINE PRODUCTS INC · MADISONVILLE, LA, UNITED STATES · built 2015

Hull materialSteel

PropulsionNot recorded

Hull shapeBox

Hull configurationMonohull

Hailing portNEW ORLEANS, LA

Trade endorsementsCoastwise, unrestricted

DocumentationValid · issued 28 May 2026 · expires 30 June 2027

Service, as the file records itTank Barge

Hull formbarge (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)

Tonnage as PSIX records it1619 - Simplified, Gross Ton
1619 - Simplified, Net Ton

Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 September 2026, matched to this hull on its Official Number. Registered and ITC measurements are two systems and are never combined. One snapshot is held so far; documentation history begins with the next.

Radio station licence

No FCC ship-station licence is recorded against this Official Number in the file of 6 September 2026. That is a fact about the licence file, not about the radio.

Inspected as a tow unit · 2

The Coast Guard recorded this vessel and the following in the same inspection activity — normally a tug and the barges in its tow. A recreational or unclassed hull in the same activity is held and not published, so it does not appear here: these lists are a floor, not a complete manifest.

SYNERGY Towing Vessel · MISLE 90574 · 11 April 2023 · activity 7692225 MM 302 Tank Barge · MISLE 1323986 · 11 April 2023 · activity 7692225

Inspection history · 15

5 November 2025 Administrative Inspection · Annual Inspection

Physical examination · Sector Upper Mississippi River · USCG Heartland District (CGD-H) · Activity 8262606

17 December 2024 Cargo Tank Internal · COI Inspection · Drydock Exam · Examination of Repairs · Internal Structural Exam

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 8048128

30 August 2023 Annual Inspection

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 7780364

13 April 2023 Deficiency Check · Damage Survey · Examination of Repairs

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 7668775

11 April 2023 Type not recorded

No type recorded · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 7692225

9 February 2023 Periodic Inspection

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 7633982

8 December 2021 Annual Inspection

Physical examination · Sector Upper Mississippi River · USCG Heartland District (CGD-H) · Activity 7363262

3 December 2020 MTSA Verification · Annual Inspection · Administrative Inspection

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 7107764

21 November 2019 Internal Structural Exam · COI Inspection · Administrative Inspection · Examination of Repairs · MTSA Verification

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 6859897

30 September 2019 Administrative Inspection

Administrative · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 6824547

28 June 2019 MTSA Verification · Annual Inspection · Administrative Inspection

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 6732450

11 June 2018 Administrative Inspection · Periodic Inspection · MTSA Verification

Physical examination · Sector Lower Mississippi · USCG Heartland District (CGD-H) · Activity 6441434

10 April 2017 Annual Inspection · Administrative Inspection · MTSA Verification

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 6121462

28 March 2016 Administrative Inspection · MTSA Verification · Annual Inspection

Physical examination · Marine Safety Unit Vicksburg · USCG Heartland District (CGD-H) · Activity 5842742

5 May 2015 Initial Certification · Cargo Tank Internal · Internal Structural Exam · Construction Oversight · MTSA/ISPS Verification · Hull Examination

Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 5118193

Deficiency record · 1

06 - Cargo Operations Including Equipment › N/A - No Subsystem › Cargo operation

Issued 9 February 2023 Resolved

Thermal Fluid Heaters must be operationally tested and all safety and limit controls must be checked at Periodic Inspections. The vessels Thermal Fluid Heater was unable to be tested due it being locked out due to loaded cargo with low flash point. System must be tested by marine inspector prior to loading any cargo which needs Thermal Fluid Heater.

Condition: Invalid
Action required: 705 - Other - as specified
Due 9 February 2023
Resolved 20 April 2023
Resolution: Operator conducted operational test of the thermal fluid heater to include startup/pre purge and tested the following alarms: low oil level, low oil flow, low fuel pressure, low combustion air, high temperature and flame failure, ALL SAT.

Casualty record · 1

11 April 2023Routine · role: Involved in a Marine Casualty · activity 7692225

Each line is an incident investigation the Coast Guard recorded with this hull among the vessels involved, with the date and the classification the Coast Guard gave it, and the bridge, lock or dam the investigation names where it names one. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.