Ultrasonic Hull Gauging in La Rochelle and La Pallice

Inspection services for ships at La Rochelle

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

Where ships can be gauged at La Rochelle

Most gauging at La Pallice happens alongside, at the bulk and general cargo quays of the outer port, during the cargo stop. The agent arranges access through the port's security gate, and the ship provides a gas-free certificate and an enclosed-space entry permit for every ballast tank or hold space the team enters. Because loading cycles for grain are short, the plan is tank-first: ballast tanks and cofferdams while the ship waits for cargo, hold structure and hatch coamings once the holds are swept and before loading begins.

The port has a ship-repair side that has worked on coasters, fishing vessels and smaller merchant ships, and a repair dock exists on the commercial side. Its availability and size should be confirmed with the port authority and the yard before a docking-linked job is built around it. Larger ships that need a docking in dry dock normally go to a bigger Atlantic or Mediterranean yard, and in that case La Rochelle is the pre-docking call, where gauging readings help the yard scope steel renewal before the ship leaves.

• Outer-port bulk quays at La Pallice, for hold, hopper tank and hatch coaming gauging on grain carriers.
• Oil product berths, for ballast tank and deck gauging on product tankers within terminal permit rules.
• General cargo and timber quays, for hatch cover, tween-deck and coaming steel on breakbulk ships.
• Ro-ro quay, for ramp, vehicle deck and ballast tank checks on short calls.
• The commercial port's repair dock and repair quay, for smaller ships and workboats, subject to availability.
• Waiting berths in the outer harbour and the Pertuis d'Antioche anchorage, for launch-served work in settled weather.

Port state control and the grain trade at La Rochelle

France inspects foreign ships under the Paris MoU, through the Centres de sécurité des navires, which are the maritime administration's ship safety centres. Ships calling at La Pallice are targeted like those at any French port, with older bulkers and general cargo ships on the higher-risk list more likely to see a detailed inspection. A recent steel gauging report on the hull and hold structure is a useful piece of evidence for a master who expects an inspector on board.

Bulk carriers carry the strongest survey obligations here. The enhanced survey programme sets the extent of gauging at renewal surveys for bulk carriers, and charterers loading grain often ask owners to confirm hold condition. The EU Ship Recycling Regulation also expects an inventory of hazardous materials on board ships calling at EU ports, which is a separate paper task, but the same dry dock or repair programme usually serves both. EU ETS and FuelEU Maritime apply to calls at La Rochelle in the same way as at any other EU port.

Wherever a ship is outside a sulphur emission control area, the global 0.50% sulphur cap applies, and many of the ships calling at La Rochelle 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 La Rochelle

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

Most technicians reach La Rochelle through Paris or Bordeaux, and La Rochelle-Île de Ré airport is a regional option when schedules allow. Roads connect the airports and the port, and the agent arranges gate passes and any launch for ships waiting outside. France is in the Schengen area, so each technician needs a Schengen visa issued in India before departure, which sets the lead time and is why a ship's loading date should be shared as early as possible.

• 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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