Ship Thickness Measurement in Lisbon and the Setúbal Repair Yard

Inspection services for ships at Lisbon

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

Where gauging happens around Lisbon and Setúbal

The Mitrena yard is the main location. Lisnave's dry docks give full access to bottom and side shell, tanks and internal structure, and a docking there is the natural time for renewal-survey and CAP thickness measurement in Portugal on large tankers and bulk carriers. We work to the yard's sequence and the superintendent's priorities, gauging tanks as they are cleaned and released, and reporting compartment by compartment so renewals can be decided while there is still time to fabricate and fit steel in the same stay.

In Lisbon, the container terminals at Alcântara and Santa Apolónia, the bulk and grain berths and the estuary anchorage are the afloat locations. A ship waiting in the Tagus before moving to Setúbal for docking is the classic pre-docking case: ballast tanks, deck and accessible hold structure are gauged at anchor, and the steel list goes to the yard before arrival. Cruise ships at the Lisbon Cruise Terminal have tight turnarounds, so ship inspection in Lisbon on a cruise call focuses on tanks, machinery spaces and scrubber piping that the chief engineer can release.

• Lisnave Mitrena yard, Setúbal — renewal-survey, ESP and CAP gauging on tankers, LNG carriers, bulk carriers and container ships in dock.
• Repair quays at Mitrena — pre- and post-docking gauging afloat while ships wait for or leave the dry docks.
• Tagus estuary anchorage — launch-served ballast-tank and deck gauging on ships waiting for a berth, for orders or for their Setúbal dock slot.
• Alcântara and Santa Apolónia container terminals — short-call ballast-tank, deck and scrubber piping gauging on container ships.
• Lisbon Cruise Terminal and city berths — tank, machinery-space and scrubber piping readings on cruise ships within the turnaround.
• Setúbal port ro-ro berths — gauging of vehicle decks, ramps and ballast tanks on car carriers loading at the port.

Port state control, the ECA timeline and Portugal's maritime administration

Portugal applies port state control under the Paris MoU, and Lisbon is home to the European Maritime Safety Agency, whose THETIS information system supports port state control inspections across the EU and the Paris MoU region. For a ship manager that means the same risk-based targeting as at any northern European port: older tankers and bulk carriers with structural deficiencies on record are inspected more often, and gauging before arrival is a practical way to know what an inspector may find. Cargo and passenger calls in the Tagus and at Setúbal also count for the EU ETS, which has covered shipping since 2024, and for FuelEU Maritime, in force since 2025.

Lisbon lies outside every SOx ECA in force today. That will change: the North-East Atlantic ECA, adopted by IMO in 2026, takes in mainland Portugal's waters but not the EEZs around Madeira and the Azores, enters into force on 1 September 2027 and brings the 0.10% sulphur limit to the Tagus from September 2028. Portugal's international ship register, MAR, is run from Madeira, and its ships call at Lisbon and dock at Setúbal like any others. The extent of their gauging is set by the classification society's rules and, for oil tankers, chemical tankers and bulk carriers, by SOLAS chapter XI-1 regulation 2 and the 2011 ESP Code, with IACS UR Z10.2 and Z10.5 governing bulk carrier surveys at Mitrena.

Wherever a ship is outside a sulphur emission control area, the global 0.50% sulphur cap applies, and many of the ships calling at Lisbon meet it with an exhaust gas cleaning system rather than compliant fuel. Scrubber wash-water piping, the overboard discharge and the hull penetration around it corrode quickly in service, especially on open-loop systems, and are worth adding to the gauging scope.

How a thickness measurement job runs at Lisbon

Most of the work on a Lisbon job happens before the team boards: scope, plan and access are settled first, so the time on board goes on measurement.

Lisbon Humberto Delgado Airport is the arrival point for both Lisbon and Setúbal, and the Mitrena yard is reached by road across the Tagus bridges. Yard access for a docking is arranged with Lisnave, while the ship's agent handles ISPS passes at the Lisbon terminals and launch boats for ships in the estuary anchorage. Portugal belongs to the Schengen area: each technician's visa is obtained in India before departure, and the application goes in once the dock slot or call is confirmed, supported by an invitation letter from the owner or yard that names the vessel. Dock dates move, so travel is confirmed against the yard's latest schedule.

• 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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