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LOCKMASTER

Towing Vessel · Built 1980s · USCG Heartland District (CGD-H) · Other hulls named LOCKMASTER · INGRAM BARGE CO. operator of record, 2023

LOCKMASTER is a 1981 towing vessel. The Coast Guard has recorded 34 inspections since 1992, most recently in January 2026, along with 1 deficiency and 2 casualty investigations between 2008 and 2011.

Records from 1992 to 2026. Most recent: inspection, 5 January 2026.

Built
1981
Last inspected
5 January 2026
Documentation
Valid · documentation file of 10 September 2026
Inspections
34
Deficiencies
1 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date
Casualties
2 investigations · 2008–2011
Inspected with
6 other vessels

Identity

US Official No.
643319
IMO number
—
Call sign
WDK9483
MISLE id
203843
Flag
UNITED STATES
MMSI
367633250
Maury page id
psix-203843

Inspections, by type

…physical examinations4
…administrative events4
…with no type recorded26
Years with a record 16 calendar years (1992–2026)
The 34 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 Towing Vessel class in Maury's sources begin in 1980.

Documentation record

Registered dimensions (L × B × D)39.0 ft × 25.9 ft × 9.8 ft
Registered tonnagegross 84 / net 57
ITC dimensions (L × B × D)Not recorded
ITC tonnageNot recorded
BuilderMAIN IRON WORKS INC · HOUMA, LA, UNITED STATES · built 1981
Hull materialSteel
PropulsionDiesel Reduction
Hull shapeNot recorded
Hull configurationNot recorded
Hailing portCINCINNATI, OH
Trade endorsementsCoastwise, unrestricted
DocumentationValid · issued 30 December 2025 · expires 31 January 2027
Service, as the file records itTowing Vessel
Hull formpowered (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)
Tonnage as PSIX records it84 - Regulatory (Subpart C or D), Gross Ton
57 - Regulatory (Subpart C or D), 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

WDK9483MMSI 367633250 · active · compulsorily equipped · granted 10 July 2019, expires 10 July 2029
WDH5964MMSI 367633250 · cancelled · compulsorily equipped · granted 19 July 2014, cancelled 8 July 2019
FCC Universal Licensing System ship-station file of 6 September 2026, matched to this hull on its US Official Number. Status and dates are the file’s own. The licensee is not read from the file and is not shown. A lapsed licence’s MMSI is still the number the vessel transmitted under while it was valid.

Inspected as a tow unit · 6

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.

AB 65 Freight Barge · MISLE 114918 · 22 March 1995 · activity 140217T 13004 B Freight Barge · MISLE 118276 · 22 March 1995 · activity 140217ET 402B * Freight Barge · MISLE 132038 · 22 March 1995 · activity 140217FOURTH QUARTER Passenger (Inspected) · MISLE 133610 · 22 March 1995 · activity 140217REGULUS Public Vessel, Unclassified · MISLE 47384 · 5 September 1992 · activity 85297OR 3863 Freight Barge · MISLE 193026 · 5 September 1992 · activity 85297

Inspection history · 34

5 January 2026 Administrative Inspection
Administrative · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 8290419
18 March 2023 Administrative Inspection
Administrative · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 7652902
12 January 2022 Initial Certification
Physical examination · Marine Safety Unit Baton Rouge · USCG Heartland District (CGD-H) · Activity 7379292
8 December 2021 TPO Audit
Administrative · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 7365133
27 March 2018 Industry Initiated Exam
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6379353
8 June 2017 Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6169911
25 August 2011 Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 4127587
21 September 2010 Industry Initiated Exam · MTSA Verification
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 3854318
27 June 2008 Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 3262552
18 September 2006 MTSA Verification · Annual Inspection
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 2783048
30 April 2006 Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 2644555
30 December 2003 Security Plan Review - ASP
Administrative · Marine Safety Center (MSC) · Activity 1990329
29 October 1997 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 763188
14 September 1997 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 197800
5 August 1997 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 54930
10 October 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 759368
26 August 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 197799
9 July 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 758902
1 July 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 197802
17 January 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 758814
11 January 1996 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 197801
28 September 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 758334
16 August 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 758226
9 August 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 758202
26 July 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 193343
26 July 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 193345
2 July 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 193333
22 March 1995 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 140217
9 February 1993 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 666506
22 October 1992 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 654364
5 October 1992 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 61403
5 October 1992 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 99713
5 September 1992 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 85297
5 September 1992 Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 215566

Deficiency record · 1

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 18 March 2023 Resolved
Vessel lost propulsion on starboard main engine.
Action required: 60 - Rectify deficiencies prior to movement
Resolved 24 March 2023
Resolution: Damaged engine was replaced in kind.

Casualty record · 2

27 June 2008Routine · role: Involved in a Marine Casualty · activity 3262552
25 August 2011Routine · role: Involved in a Marine Casualty · activity 4127587
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.