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SHAMROCK 904
Tank Barge · Barge class · Built 2010s · USCG Heartland District (CGD-H) · Other hulls named SHAMROCK 904 · BUFFALO MARINE SERVICE, INC. operator of record, 2023
SHAMROCK 904 is a 2015 tank barge. The Coast Guard has recorded 15 inspections since 2015, most recently in May 2026, along with 5 deficiencies and 1 casualty investigation in 2017.
Records from 2015 to 2026. Most recent: inspection, 4 May 2026.
- Built
- 2015
- Last inspected
- 4 May 2026
- Documentation
- Valid · documentation file of 10 September 2026
- Deficiencies
- 5 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
- Casualties
- 1 investigation · 2017
Identity
1261265
1342300
Flag
UNITED STATES
—
Maury page id
psix-1342300
Inspections, by type
…with no type recorded1
Years with a record
12 calendar years (2015–2026)
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)297.4 ft × 54.0 ft × 12.0 ft
Registered tonnagegross 1,618 / net 1,618
ITC dimensions (L × B × D)Not recorded
ITC tonnageNot recorded
BuilderJEFFBOAT LLC · JEFFERSONVILLE, IN, UNITED STATES · built 2015
Hull materialSteel
PropulsionNot recorded
Hull shapeBox
Hull configurationMonohull
Hailing portHOUSTON, TX
Trade endorsementsCoastwise, unrestricted
DocumentationValid · issued 1 October 2025 · expires 31 October 2026
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 it1618 - Simplified, Gross Ton
1618 - Simplified, Net Ton
1618 - 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.
SAN BLAS Towing Vessel · MISLE 870002 · 4 November 2017 · activity 6308892SHAMROCK 905 Tank Barge · MISLE 1342302 · 4 November 2017 · activity 6308892Inspection history · 15
4 May 2026
Administrative Inspection
Administrative · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 8362037
9 May 2025
Drydock Exam · Deficiency Check · Internal Structural Exam · COI Inspection · Administrative Inspection · Cargo Tank Internal · Examination of Repairs
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 8131758
5 December 2024
Annual Inspection
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 8043857
11 January 2024
Bulk Liquid Transfer Monitor
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 7848351
7 December 2023
Annual Inspection · Administrative Inspection
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 7836254
10 November 2022
MTSA Verification · Periodic Inspection · Deficiency Check
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 7592618
2 December 2021
MTSA Verification · Annual Inspection
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 7345187
17 September 2020
MTSA Verification · COI Inspection · Examination of Repairs · Internal Structural Exam
Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 7057572
5 June 2020
Administrative Inspection
Administrative · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 6970930
26 November 2019
Annual Inspection
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6852260
4 December 2018
Administrative Inspection · Annual Inspection · MTSA Verification
Physical examination · Sector Corpus Christi · USCG Heartland District (CGD-H) · Activity 6591826
9 November 2017
Administrative Inspection · MTSA Verification · Periodic Inspection
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 6303993
4 November 2017
Type not recorded
No type recorded · Sector Corpus Christi · USCG Heartland District (CGD-H) · Activity 6308892
13 September 2016
Administrative Inspection · MTSA Verification · Annual Inspection
Physical examination · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 6000388
18 April 2015
Internal Structural Exam · Initial Certification · Cargo Tank Internal · Administrative Inspection · Initial Construction-Excluding Oversight · MTSA Verification · Hull Examination
Physical examination · Sector Ohio Valley · USCG Heartland District (CGD-H) · Activity 5170640
Deficiency record · 5
01 - Certificates & Documentation › 011 - Ships Certificates › Other (certificates)
Issued 9 May 2025
Resolved
The operator of a vessel with a capacity of 250 or more barrels of oil, hazardous material, or liquefied gas as regulated in Table 4 of 46 CFR part 154 shall provide transfer procedures that meet the requirements of this part and part 156 of this chapter for transferring—
(a) To or from the vessel; and
(b) From tank to tank within the vessel.
MI's observed vessel documentation book containing transfer procedures water-logged and all documents unreadable. Replace documentation book and all required documents to the satisfaction of a Coast Guard Marine Inspector.
//33 CFR 155.720//
02 - Structural Conditions › N/A - No Subsystem › Electrical installations in general
Issued 9 May 2025
Resolved
Electric installations on vessels must ensure:
(2) Protection of passengers, crew, other persons, and the vessel from electrical hazards.
MI observed electrical engine control enclosure on STBD cargo pump prime mover wasted and not sealing. Enact repairs to the Satisfaction of a Coast Guard Marine Inspector.
//46 CFR 111.01-1(a)(2)//
06 - Cargo Operations Including Equipment › N/A - No Subsystem › Other (cargo)
Issued 9 May 2025
Resolved
The cargo handling equipment shall be maintained by the tank vessel's personnel in accordance with the regulations in this subchapter, including the following:
(c) Cargo pump pressure gauge shall be tested at least once a year for accuracy.
MI's observed broken gauge on cargo piping starboard side. Enact repairs to the satisfaction of a Coast Guard Marine Inspector.
//46 CFR 35.35-70(c)//
02 - Structural Conditions › N/A - No Subsystem › Other (Structural condition)
Issued 5 December 2024
Resolved
Scantlings, material, and workmanship, subdivision of cargo spaces, fitting of cofferdams, and testing of tanks shall be at least equivalent to the requirements of the American Bureau of Shipping or other recognized classification society.
Inspectors identified multiple areas of severe pitting on the raised trunk of the cargo tanks. Vessel shall enact repairs to the satisfaction of the Coast Guard during the barge's next ISE/DDE/CTIE Period.
06 - Cargo Operations Including Equipment › N/A - No Subsystem › Other (cargo)
Issued 8 December 2022
Resolved
Each cargo tank of a tank barge must have a high-level indicating device, unless the barge complies with 46 CFR 39.2009(a). The high-level indicating device must -
(1) Indicate visually the level of liquid in the cargo tank when the liquid level is within a range of 1 meter (3.28 feet) of the top of the tank;
All meter sticks were discovered to be distorted, making it difficult to extract sticks during inspection.
Casualty record · 1
4 November 2017Routine · role: Involved in a Marine Casualty · activity 6308892
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.