UWILD at Trincomalee Port
Survey credit earned without leaving the water
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Tell us the vessel, the port and the window. Scoped reply, usually the same working day.
Cleanship Marine runs full UWILD programmes — Underwater Inspection In Lieu of Drydocking — at Trincomalee Port, Eastern Province, from eligibility discussion through class liaison to the final report package.
UWILD lets a vessel satisfy a survey requirement that would otherwise mean a dry docking, at a fraction of the cost and with none of the off-hire. The requirements are exacting: the contractor must hold class approval, the vessel must be eligible, hull markings must let the surveyor locate features precisely, and the inspection has to be delivered live and documented. This is one of the better ports on the coverage list for in-water survey work: clarity supports the wide shots and the close detail a surveyor needs, and the record that comes out of it stands up in the class file.
What it gets you
- Drydocking deferred and the survey credit earned in the water
- Class liaison handled end to end rather than left with the superintendent
- Eligibility confirmed before cost is committed, not discovered afterwards
- A documented inspection record that stands up to class review
Working conditions at Trincomalee
Trincomalee is one of the largest natural deep-water harbours in the world and it is exceptionally sheltered — a vessel inside is out of the weather in a way no other port on this coverage list matches. Water is clear by regional standards and the harbour is deep enough to work large tonnage at anchor comfortably. The north-east monsoon from December to February is the limiting season here, which is the opposite of Colombo.
- Where we work
- Inner harbour berths · Oil terminal jetty · Deep anchorage
- Vessels we see here
- Handysize bulk carriers · Product tankers · General cargo ships
What we do at Trincomalee
- Eligibility review against the vessel's age, type, class notation and survey history before anything is booked
- Programme agreed with the class society and the surveyor attending at Trincomalee
- Hull, rudder, propeller, stern gear, sea chests and appendages inspected to the UWILD scope
- Live video, thickness measurement and clearance readings where the programme calls for them
- Diving permission cleared with Sri Lanka Ports Authority, with the vessel secured and machinery immobilised
- Complete report package submitted for the class file and the drydocking credit
Planning the window at Trincomalee
The two monsoons governs the calendar at Trincomalee Port, the south-west from May to September and the north-east from December to February. Which one matters depends on which coast the port is on — the south-west monsoon closes the western and southern anchorages while the east coast stays workable, and the north-east monsoon reverses it. Sri Lanka is the one market on the coverage list where there is almost always a workable coast. Water clarity here is good by regional standards, so the operation can be properly documented on video as it happens — an advantage that turns a cleaning job into usable condition evidence at no extra mobilisation cost.
Work is taken at the inner harbour berths, oil terminal jetty and deep anchorage, and which of those a vessel ends up at changes the dive plan more than the season does. Teams mobilise via Trincomalee or Colombo (CMB), so give us the ETA as early as you have it — the travel is the flexible part, the approvals and the working window are not.
What we typically find at Trincomalee
Dry bulk handling here puts cargo dust into the water around the berths and anchorage. It settles on horizontal surfaces and packs into sea chest gratings and inlet openings, so inlet and grating clearance is routinely a larger part of the job at Trincomalee than owners budget for.
Clearer water means the fouling state can be assessed properly before any tooling is selected, and the assessment can be shown to you rather than described.
Standard scope of work
Included as standard on every UWILD attendance, wherever the vessel is. Anything outside it is quoted separately and flagged before mobilisation, never added afterwards.
- Eligibility and planning
- Vessel eligibility, survey scope and the society's specific requirements are established and agreed before mobilisation.
- Hull preparation
- Reference markings and cleaning of inspection areas so structure and features can be located and viewed unambiguously.
- Systematic inspection
- Shell plating, welds, rudder, propeller, sea chests, openings, anodes and appendages inspected to the agreed programme.
- Measurement and NDT
- Clearance measurement and underwater NDT carried out where the survey scope requires it.
- Documentation
- Video, stills, measurements and findings compiled into a report package suitable for submission to the classification society.
How we deliver it at Trincomalee
- 1
Scope and vessel details
Tell us the vessel, her particulars, the coating specification and the window at Trincomalee. We come back with a defined scope, a crew size and a duration we will stand behind. Where the conditions here will not support what has been asked for, we say so at this stage rather than after mobilisation.
- 2
Permits and approvals
Sri Lanka Ports Authority approves the work alongside the local harbour master, and at a state port that conversation is quicker but less formal — it is worth having in writing. Diving permission, terminal approval and any environmental clearance for in-water work are handled by us, not left with the agent to chase.
- 3
Mobilisation to Trincomalee
Divers, compressors, brush carts and cameras mobilise via Trincomalee or Colombo (CMB). Where a vessel is also calling at Colombo, one mobilisation is normally sized to cover both.
- 4
Safety setup and the dive
The vessel is secured for diving — main engine, shaft and thrusters immobilised, sea suctions confirmed shut, permit agreed with the master. Teams work under surface supervision with continuous diver communications and video throughout.
- 5
Report and handover
A completion report covering UWILD is issued with before-and-after imagery, coating and anode condition and anything found that you should know about. The findings are discussed with the vessel rather than emailed and forgotten.
Trincomalee Port at a glance
- UN/LOCODE
- LKTRR
- Port type
- State Port
- State
- Eastern Province
- Country
- Sri Lanka
- Water body
- Bay of Bengal
- Port authority
- Sri Lanka Ports Authority
- Main cargoes
- Cement and clinker, Grain and agricultural bulk, POL and fuel storage, General cargo
- Crew mobilisation
- Trincomalee / Colombo (CMB)
- Services here
- Hull Cleaning, Hold Cleaning and Tank Cleaning
Frequently asked — UWILD Inspection at Trincomalee
Do you provide UWILD at Trincomalee Port?
Yes. Cleanship Marine works Trincomalee Port (LKTRR) in Eastern Province, Sri Lanka, covering the inner harbour berths, oil terminal jetty and deep anchorage. Teams mobilise via Trincomalee or Colombo (CMB) with the full spread.
Can UWILD be done while the vessel works cargo at Trincomalee?
Yes. Conditions here are good enough that the dive runs alongside cargo operations without either holding the other up, and the work is documented on video as it goes. The vessel stays on hire throughout, and there is no diversion and no dry dock. We scope against the conditions at Trincomalee and tell you honestly whether the window you have is enough.
Do you need a diving permit from Sri Lanka Ports Authority?
Yes, and we obtain it. Diving permission from Sri Lanka Ports Authority, terminal approval where the berth requires it, and any environmental clearance for in-water work are arranged as part of the job rather than left with the agent. The master's permit to work and the immobilisation of machinery are agreed on board before anyone enters the water.
What is underwater visibility like at Trincomalee?
Visibility at Trincomalee Port is good by regional standards and usually adequate for video work, and the two monsoons sets the outer limits of the calendar. How the tide and sea state shape the dive plan is set out in full in the working-conditions section on this page.
Which vessels do you carry out UWILD on at Trincomalee?
Handysize bulk carriers, Product tankers and General cargo ships — the traffic at Trincomalee Port runs to cement and clinker, grain and agricultural bulk, POL and fuel storage, so those are the profiles we see most. The scope is sized to the vessel, not to a standard package.
How quickly can a team mobilise to Trincomalee?
Divers and equipment mobilise via Trincomalee or Colombo (CMB). Give us the ETA and the window and we will confirm what is achievable rather than promise a date we cannot hold. Where the vessel also calls at Colombo or Galle, one mobilisation is often sized to cover both.
What does UWILD at Trincomalee cost?
It depends on the vessel's dimensions and wetted area, the fouling state found, the coating specification and the working window available at Trincomalee. We would rather scope it properly and give you a specific figure than quote a headline rate that changes once the work starts. Send the details and the window at Trincomalee and you get a scoped price, usually the same working day.
UWILD at Trincomalee Port.
Tell us the vessel, her ETA at Trincomalee and the window. You get a scope, a crew size and an honest duration — usually the same working day.