Ship Thickness Measurement and Hull Gauging in Gdynia

Inspection services for ships at Gdynia

Each service has its own page with the method, the class requirements and what the report contains.

Gauging locations in Gdynia

At the container terminals, feeder calls are short and regular, so gauging scopes are agreed with the chief officer and chief engineer before arrival and repeated across calls until the area is complete. At the ferry terminal, work on the Karlskrona ro-pax is fitted into lay-by periods, with vehicle decks and voids measured when they are clear and ballast tanks when the crew has made them safe for entry. Bulk and general cargo ships on the cargo quays are gauged during cargo operations, hold by hold, with hopper and topside tanks taken in turn as the crew releases them.

At Nauta, dock preparation sits with the yard, and our technicians start on the bottom plating and sea chests as soon as the dock is dry and the first tanks are certified, moving on to side shell and piping. For Gdynia ship repair, the value of gauging is in its timing: readings in the first days of a docking let renewal be agreed before the yard commits its labour. Off Gdynia, ships lying at anchor can be boarded from a launch the agent arranges; deck, pipework and gas-freed tanks are the realistic scope there.

• Container terminals — feeder and short-sea container ships; deck, hatch-coaming, ballast-tank and scrubber piping gauging during scheduled calls
• Ferry terminal — Stena Line ro-pax to Karlskrona; vehicle-deck, ramp and void gauging in packages fitted to turnarounds and lay-by
• Nauta ship-repair yard — merchant and special-purpose vessels in dock; bottom, sea chest, tank and pipework readings for the renewal list
• Bulk and general cargo quays — bulk carriers and multipurpose ships; hold, tank-top and hatch-coaming gauging while cargo is worked
• Anchorage off Gdynia — ships held before berthing or docking at Nauta, a good moment for pre-purchase or pre-docking gauging reached by launch

Regulatory and fleet-management context in Gdynia

Gdynia's port state control is Paris MoU, and its approaches are inside the Baltic SECA, so fuel sulphur is held to 0.10% or the exhaust is scrubbed. A good part of the feeder and ro-ro tonnage calling here runs exhaust gas scrubbers, and because what a scrubber may discharge varies from one Baltic coastal state or port to the next, operators often switch modes or fuels as they move along the coast; either way, the wash-water and overboard piping wears and needs measuring. The Karlskrona crossing runs between EU ports, so it carries the full EU ETS obligation that began in 2024 and the FuelEU Maritime requirements in force since 2025.

The fleet-management cluster sets the commercial context. Technical managers in the Tricity plan renewal and intermediate surveys across fleets of bulk carriers, tankers and container ships trading worldwide, and they need gauging scheduled against survey windows and drydock slots that may be months away, in ports that may be on another continent. For ESP ships, bulk carriers under UR Z10.2 and Z10.5 and tankers under Z10.1 and Z10.4, the gauging extent grows sharply from the third renewal survey, so early planning matters most for older ships.

Ships trading to Gdynia are inside a sulphur emission control area, where fuel must not exceed 0.10% sulphur unless an exhaust gas cleaning system (scrubber) is fitted. Scrubber wash-water piping, the overboard discharge and the hull penetration around it are among the fastest-corroding parts of a modern ship, so they belong in the gauging scope at every docking and, on open-loop systems, between dockings.

How a thickness measurement job runs at Gdynia

A gauging job at Gdynia runs the same way whatever the ship type. The sequence below is what the superintendent, the attending surveyor and the yard can expect from us.

Gdańsk Lech Wałęsa Airport serves Gdynia as well, with a road connection through the Tricity. Gate passes for the container terminals, ferry terminal and cargo quays are arranged by the ship's agent, entry to the Nauta yard through the yard, and launches serve ships at anchor. Poland applies the Schengen visa regime, so the team coming from India applies in advance; we confirm the job once the docking or port-call date is firm, and can sequence Gdynia work with ships in Gdańsk on the same trip.

• Send the vessel name or IMO number, ship type, class society, the survey due (annual, intermediate, renewal survey number, CAP or owner's condition survey), the port and dates, and the scope you expect.
• We confirm the scope against the class rules for that survey, prepare the thickness measurement plan with frame and section references, and say whether the measurement will be credited to a class survey.
• Mobilisation is planned around visa lead times and the vessel's schedule; the ship's agent arranges port access, and the yard or ship arranges staging, lighting, ventilation and gas-free certificates.
• Gauging with calibrated ultrasonic thickness gauges: through sound coatings only where the gauge's through-coating mode has been verified on a coated reference, otherwise on cleaned bare steel, with every reading tied to its frame, strake and location on the sketch.
• Readings are compared with original thicknesses as work proceeds; substantial and excessive corrosion and any cracks are reported to the attending surveyor and the superintendent the same day.
• The final report is issued on the class thickness-measurement formats with sketches, a summary of locations exceeding the allowable margins, piping tables where piping was in scope, and the gauge calibration and technician certificates.

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