Maritime inspection · Croatia
Ultrasonic Thickness Measurement for Ships in Croatia
Croatia's long, island-studded Adriatic coast combines a working cargo and ship repair port at Rijeka, shipbuilding and ferry traffic at Split, and a string of smaller ports that serve cruise ships, ferries, bulk cargo and regional trades. Ultrasonic thickness measurement is the service that fits most calls: pre-docking hull gauging before a slot at a Croatian repair yard, tank and piping checks on tankers and bulk carriers, and scrubber piping on ships in the Mediterranean emission control area. Atlantis NDT sends its team from India to the ship for every job, timed to the vessel's itinerary.
Rijeka as the repair and cargo centre
Rijeka is the main Croatian port for cargo and ship repair, with a repair yard well known to owners. Gauging at berth or at anchor before docking gives the yard a steel list built on readings.
A coast of small and medium ports
Split, Zadar, Šibenik, Ploče, Pula and Dubrovnik each have a distinct role. Choosing the right port for a gauging job means matching the ship's trade and stay length with the call that suits it.
Mediterranean emission control area
The Adriatic is inside the Mediterranean emission control area, so scrubber ships are common among regular callers. Wash-water and overboard piping is gauged as part of a routine hull and tank survey.
Maritime inspection services
Start with the survey or problem; each service page explains the method, the class requirements and the report. Marine NDT and Advanced NDT list every inspection method.
Ultrasonic Thickness Measurement (UTM)
Hull, tank, deck and bulkhead gauging recorded on the class thickness-measurement formats, with sketches and corrosion flagged against the allowable margins.
ExploreSpecial Survey Thickness Measurement
Gauging for the 5, 10, 15, 20 and 25-year special (renewal) surveys and intermediate surveys, plus pre-docking steel estimates.
ExploreCAS (Condition Assessment Scheme)
Thickness measurement and survey support for the IMO Condition Assessment Scheme, and what CAS asks of an older tanker today.
ExploreCAP Thickness Measurement
Gauging and close-up survey data for a Condition Assessment Programme, the voluntary class service charterers ask for on older tankers and bulk carriers.
ExploreESP Gauging
Thickness measurement and close-up survey support for oil tankers, chemical tankers and bulk carriers under the ESP Code.
ExploreHull Structural Integrity
Substantial and excessive corrosion, pitting, grooving, buckling and fatigue cracks, with magnetic particle and penetrant crack detection.
ExploreShip Piping Inspection
Wall-thickness gauging of cargo, ballast, fuel, sea-water and fire-main piping, with minimum-wall checks and isometric sketches.
ExploreScrubber Piping Inspection
EGCS wash-water and overboard discharge piping, the hull penetration area and scrubber welds, checked between dockings.
ExploreHatch Cover Ultrasonic Tightness Testing
Ultrasonic weathertightness testing of hatch covers, doors and closing appliances, with leak locations marked for the crew or the yard.
ExploreIHM (Inventory of Hazardous Materials)
IHM Part I surveys, sampling and maintenance for the EU Ship Recycling Regulation and the Hong Kong Convention.
ExploreShip Noise Survey
Noise level measurement in accommodation, work and machinery spaces to the IMO Code on Noise Levels on Board Ships, with a survey report for the ship.
ExploreInfrared Thermography
Thermal surveys of switchboards, motor control centres, machinery and exhaust insulation to find hot spots before they fail.
ExploreMarine NDT Services
Every NDT method we use on ships, from visual inspection and MPI to PAUT and ACFM, chosen by the defect you are looking for.
ExploreAdvanced Marine NDT
PAUT, TOFD, ACFM, eddy current and corrosion mapping for the jobs conventional NDT cannot do well on a ship.
ExploreWhere ships are gauged in Croatia
Rijeka, in the Kvarner Bay, is the heart of the country's ship work. It takes containers, general cargo and bulk, and it has repair yards of long standing, including the Viktor Lenac yard and the historic 3. Maj yard. Oil terminals on the island of Krk across the bay mean product and crude tankers are in the area, which makes the bay a regular choice for tank gauging.
Split, in central Dalmatia, is a ferry and cruise hub and has a shipbuilding yard, Brodosplit. Šibenik, Zadar and Trogir are smaller commercial and yard ports, and Trogir has a shipbuilding tradition of its own. Pula in Istria handles cargo and cruise calls and has a shipbuilding past. Ploče, in the south, is a bulk and general cargo port with a rail link into Bosnia and Herzegovina, and Dubrovnik is primarily a cruise destination, with Gruž its harbour.
The traffic behind the work
The bulk of inspection demand comes from cargo ships and tankers at Rijeka and Ploče, ferries and small passenger ships at Split, Zadar and Dubrovnik, and ships routed for the Croatian yards. Tourist-season cruise and ferry traffic is large but concentrated in the summer months, when operators have little spare time between calls.
For owners of older tonnage that trade around the Adriatic, a gauging job at Rijeka or Split before a winter lay-up or a docking is often the most useful survey, because it defines the work before the yard quotes it.
Local knowledge helps with choosing between ports. A bulk carrier discharging at Ploče stays long enough for tank work, while a ferry on the Split run is better gauged at its overnight berth. Our planning step matches the scope to the call, not the other way round.
Port state control and the rules that apply
Croatia is a Paris MoU state, and port state control is carried out under the Ministry of the Sea, Transport and Infrastructure by the harbour master's offices, the lučke kapetanije, at each port. Hull wastage on an older ship is a common inspection finding, and recent gauging gives the superintendent a ready answer.
Croatian coastal waters lie inside the Mediterranean emission control area, where the sulphur limit under MARPOL Annex VI, regulation 14, is tightened. Croatia is an EU member, so the EU Ship Recycling Regulation applies, which matters to owners of ageing tonnage deciding on a sale for recycling.
Weather, tourism and practical limits
The bora, a cold northerly or north-easterly wind, can be violent in the Kvarner Bay and along the Dalmatian coast in winter, and ferries and ships sometimes wait for it to ease. Summer brings the cruise and ferry season, with heavy traffic at Split, Zadar, Šibenik and Dubrovnik and little spare quay space.
The best windows for gauging cargo ships and tankers at Rijeka and Ploče are therefore outside the peak holiday weeks, though ships at the repair yards work year-round.
What a gauging job looks like on a Croatian call
The job begins with the ship's thickness measurement plan and her last survey report, which show which frames, strakes and tanks need readings. Before arrival the master states which tanks are clean and gas-free and the agent fixes the berth or anchorage. The team then marks the plan against the ship, takes readings with calibrated gauges and records each against its location.
In Croatia the window differs by port. A tanker at Rijeka may wait for a terminal berth, a ferry at Split turns around in hours, and a ship in a Rijeka or Split yard may be there for weeks. We size the scope to the real stay and cover the most critical areas first, so even a short call gives the superintendent a usable steel list.
Reports follow the format the yard and the superintendent already use: as-built, measured and diminution values at each point, with photographs and a marked plan. Where corrosion looks general, the report says so and recommends where further readings or renewals are needed.
Planning a Croatian gauging job from India
The team travels from India for each job. Croatia is a Schengen state, so technicians need Schengen visas, and the consulate sets the timing. On the ground, the ship's agent arranges the gangway, security passes and tank-entry permits. We ask early for the thickness measurement plan, the last survey reports and the confirmed berth, anchorage or dry-dock slot, then plan the mobilisation around the ship's firm schedule.
Roads in Croatia run mostly along the coast, and several ports are far apart. If a ship's itinerary includes more than one Croatian stop, the agent helps us choose the one that offers the longest, safest window.
Which services Croatian calls ask for
Pre-docking hull gauging is the most frequent request, followed by tank gauging on tankers and bulk carriers. Renewal survey thickness measurement support and scrubber piping checks are close behind. Pre-purchase and on-hire gauging is common because ships trading around the Adriatic regularly change owners or charterers, and a measured view of the steel is worth having before a deal.
Port pages in Croatia
There are 8 Croatia port pages: Rijeka, Split, Pula, Zadar, Ploče, Šibenik, Dubrovnik, Trogir. Each covers the ships that call, the yards and berths where gauging happens, the port state control picture and the jobs we see there; the links are under "In this section" below.
Governing codes and standards
- Paris Memorandum of Understanding on Port State Control
- IACS UR Z10 series: hull surveys and thickness measurement requirements
- MARPOL Annex VI, regulation 14: Mediterranean emission control area sulphur limit
- EU Ship Recycling Regulation (Regulation (EU) No 1257/2013)
- IMO 2021 Guidelines for exhaust gas cleaning systems
What you receive
- Thickness measurement report located by frame and strake, with as-built, measured and diminution values
- Steel renewal estimate marking plates for renewal ahead of a docking
- Tank condition summary for cargo and ballast tanks after gas-freeing
- Piping and scrubber condition report: minimum wall by spool and joint
- Preliminary readings and photographs shared during the job on request
Industries served
- Product and chemical tankers
- Bulk carriers
- General cargo ships
- Ferries and cruise ships
- Short-sea cargo ships
- Ship managers and technical superintendents
- Repair yards and buyers' surveyors
Frequently asked questions
Which Croatian ports do you cover?
Rijeka, Split, Pula, Zadar, Šibenik, Ploče, Trogir and Dubrovnik. Each has a page describing the ships and berths we see there, and the best choice depends on where your ship is already due and how long she will stay.
Is Croatia inside an emission control area?
Yes. Croatian coastal waters are inside the Mediterranean emission control area, which tightens the sulphur limit. Many regular callers run scrubbers, so we gauge wash-water and overboard piping routinely alongside the hull and tank work on those ships.
Do your technicians need visas for Croatia?
Yes. Croatia is a Schengen state, so technicians travelling from India need Schengen visas, with timing set by the consulate. We begin once the ship's schedule is confirmed and plan the mobilisation around the firm arrival and sailing dates.
Can you gauge a ship at anchor off Rijeka?
Often, for tanks and hull sections reachable from inside the ship, if the agent can arrange safe launch transfers and the weather allows. Winter wind can cancel anchorage work, so we agree an alongside fallback in the plan.
What do Croatian repair yards expect before docking?
A steel renewal estimate based on readings. Pre-docking gauging gives the superintendent measured thickness at each frame and strake with a marked plan and photographs, so the yard can plan steel tonnage and docking days on evidence.
How long does a gauging job take in Croatia?
It depends on the ship and the scope: a few hours for a limited set of readings on a ferry between sailings, a few days for full hull and tank gauging on a tanker or bulk carrier. The plan is fitted to the ship's actual stay in Croatia, with priorities agreed with the superintendent ahead of travel.
Planning a survey or a drydock?
Send the vessel name or IMO number, the class, the survey due and the port. We reply with the scope, the mobilisation plan and a quote for that vessel.
Request a QuoteRequest a ship gauging quote
Send the vessel name or IMO number, the class society, the survey due and the port. We reply with the scope, the mobilisation plan and a quote for that vessel.
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