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LOCKMASTER

Towing Vessel · Built 1980s · USCG Heartland District (CGD-H)

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 August 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
4 other vessels

Coast Guard record current through 23 August 2026, retrieved 5 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.

Inspection record

Last inspected 5 January 2026
Recorded inspections34
…physical examinations4
…administrative events4
…with no type recorded26
Deficiencies 1 recorded · 0 without a recorded resolution
Operational controls None recorded without a removal date
Years with a record 16 calendar years (1992–2026)
Every line above is a count of records the US Coast Guard wrote, or a date it recorded. A blank resolution means none was recorded in this data; it does not establish that a deficiency is outstanding. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Identity

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

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 shapeUNSPECIFIED
Hull configurationUNSPECIFIED
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 August 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.
Vessel history report
Every record for this hull, in one document — $299

Every recorded inspection, 1980 to 2026 for this class, in one chronology · every deficiency, with system, dates and resolution · operational controls imposed and removed · every name this hull has been recorded under · the vessels it was inspected alongside, and when · how its record compares with hulls of similar age and size, as a fact about the population and never a judgement about this vessel.

Read one first, in full: a forty-year chronology · a hull that changed operators four times · the sparse case, shown as an example, not for sale.

This report is in development and is not for sale yet. There is no date, and nothing is charged. Leave an email and we will tell you when it exists, once.

Inspected as a tow unit · 4

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 140217OR 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 MTSA Verification · Industry Initiated Exam
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 Annual Inspection · MTSA Verification
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. 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.