Maritime inspection · United Arab Emirates
Ship Inspection in Sharjah: Thickness Gauging on Both Coasts
Sharjah has ports on both coasts of the UAE. Khor Fakkan on the Gulf of Oman handles container transhipment outside the Strait of Hormuz, while Port Khalid and Hamriyah on the Gulf side serve general cargo, feeders, the oil and gas industry and marine fabrication. Superintendents with feeders, coasters, small tankers or offshore craft in the emirate can call on us for thickness measurement in Sharjah; the team comes from India and travels to whichever coast the ship is on.
Two coasts, one mobilisation
Khor Fakkan faces the Gulf of Oman; Port Khalid and Hamriyah face the Gulf. A team already in the emirate can move between them by road when two ships' schedules line up.
Regional tonnage that rarely rests
Feeders, coasters and landing craft trading from Sharjah work warm water year-round with few long stops. Wastage builds steadily between surveys, so gauging at each renewal or sale carries real weight.
Yard work in Hamriyah Free Zone
Tugs, workboats and small offshore vessels come into the free zone's marine yards for repair. Gauging before blasting starts lets the repair list reflect measured wastage rather than visual estimates.
Inspection services for ships at Sharjah
Each service has its own page with the method, the class requirements and what the report contains.
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.
ExploreIHM (Inventory of Hazardous Materials)
IHM Part I surveys, sampling and maintenance for the EU Ship Recycling Regulation and the Hong Kong Convention.
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.
ExploreSharjah's three ports and the traffic they handle
Sharjah's shipping divides between two coasts. Khor Fakkan, on the Gulf of Oman, is a deep-water container terminal whose position outside the Strait of Hormuz suits transhipment and feeder connections into the Gulf, and ships also wait and take bunkers off the east coast nearby. On the Gulf side, Port Khalid sits close to the city centre and handles containers, general cargo, ro-ro and project cargo, while Hamriyah Port to the north serves the Hamriyah Free Zone, with liquid and gas berths and an industrial waterfront of steel, fabrication and marine businesses.
Much of the tonnage here is regional. Feeder container ships shuttle between Khor Fakkan, Jebel Ali and the smaller Gulf ports; general cargo ships, coasters and landing craft trade around the Gulf and the Gulf of Oman and across to East Africa and the Indian subcontinent; small tankers and gas carriers serve the Hamriyah terminals. These ships rarely leave warm water and often work for years without a long lay-up, so wastage accumulates steadily between renewal surveys. When they do stop, it is usually for a docking at a Gulf yard or a few days at a repair berth, and that is the window for gauging. Landing craft deserve a separate note: their bow ramps, ramp hinges and flat bottoms take repeated beaching loads at unimproved landing sites, so they wear differently from conventional coasters.
That profile makes Sharjah demand distinctive. Many of the vessels are older and smaller, and are owned by regional operators who need gauging for class renewal surveys, for flag or charter requirements, or before sale to new owners. Hatch covers, coamings, holds and ballast tanks on general cargo ships and feeders take the brunt of the corrosion, and engine-room seawater systems on small ships run hard in warm, fouling water. Khor Fakkan adds an east-coast option for container ships and tankers that are already off the coast for bunkers or crew changes, without a detour through the strait.
Gauging at Khor Fakkan, Port Khalid and Hamriyah
Hull gauging in Hamriyah is usually tied to a repair or fabrication yard. Workboats, tugs, landing craft and small offshore vessels are slipped or lie alongside at the free zone's marine yards for repairs and surveys, and gauging is done before blasting and steel work start, so that the repair list reflects measured wastage rather than visual estimates. Small tankers and gas carriers serving the Hamriyah terminals are gauged at lay-by berths when idle between cargoes, with gas-freeing and entry permits arranged by the ship. Free-zone yards often handle several vessels at once, so the gauging schedule is agreed with the yard's planner to avoid clashing with blasting on a neighbouring hull.
At Port Khalid, gauging is done alongside on general cargo, ro-ro and container ships during longer calls, or on ships laid up waiting for employment. On the east coast, thickness gauging at Khor Fakkan is done on container ships alongside the terminal when the stay allows, and on tankers and bulk carriers waiting off the coast, reached by launch. Khor Fakkan is close to Fujairah, so a single mobilisation can cover ships at both, and the team can return to the Gulf-side ports by road the same day.
- Khor Fakkan container terminal — piping, deck and hold gauging on container and feeder ships during longer stays at the east-coast berths
- Off Khor Fakkan — pre-purchase and condition readings on tankers and bulkers lying off the east coast, reached by launch through the agent
- Port Khalid — gauging on general cargo, ro-ro and project-cargo ships alongside, and on vessels laid up in the port awaiting employment
- Hamriyah Free Zone marine yards — renewal-survey gauging of tugs, landing craft, workboats and small offshore vessels during repair periods
- Hamriyah liquid and gas berths — condition gauging on small tankers and gas carriers when idle between cargoes, under the terminal's permit system
Thickness measurement through the survey cycle at Sharjah
Class rules set the survey cycle, and the cycle sets how much gauging a ship needs. A superintendent planning a call at Sharjah usually knows which survey is due; the table shows what the thickness measurement for each one typically involves. The exact extent comes from the class rules for the ship type and the surveyor attending, so the thickness measurement programme is agreed with the class before work starts.
| Survey | When it falls | What the thickness measurement usually covers |
|---|---|---|
| Annual survey | Every year, within three months of the anniversary date | General examination. Gauging where the surveyor finds suspect areas or where substantial corrosion was recorded at an earlier survey. |
| Intermediate survey | In place of the second or third annual survey | Suspect areas, and on older ships and ESP ships selected ballast and cargo spaces with close-up survey; the extent grows with age. |
| Renewal survey No. 1 | Around 5 years | The first full baseline: suspect areas and selected plating and stiffeners, usually with modest steel renewal. |
| Renewal survey No. 2 | Around 10 years | Wider gauging of deck, bottom and side plating, transverse sections across the cargo area on ESP ships, and more close-up survey. |
| Renewal survey No. 3 | Around 15 years | Extensive gauging of cargo and ballast tank structure and more transverse sections. The survey most likely to turn up steel renewal. |
| Renewal survey No. 4 and later | Around 20 and 25 years | Gauging extended to most structural members in cargo and ballast spaces. Charterers often add a Condition Assessment Programme. |
| Docking survey | Twice in each five-year period | Bottom and side shell, sea chests, rudder and stern area while the hull is dry; suspect bottom plating gauged. |
Regulation and market context for Sharjah ship owners
Sharjah's ports come under the UAE's port state control system as part of the Riyadh MoU, and older general cargo and feeder ships carry a higher risk profile under port state control targeting. Typical structural deficiencies on that tonnage are wasted deck and hatch-coaming plating, corroded air pipes and ventilators, and holed bulkheads. Gauging a known weak area ahead of time gives the owner both evidence and a repair plan before an inspector finds it. With no emission control area anywhere in the Gulf, ships here work to the 0.50% global sulphur limit, and scrubber-fitted container ships calling at Khor Fakkan need their wash-water piping watched.
Commercially, Sharjah sits within the UAE's ship-owning and trading community, with many regional operators, ship chandlers and repair contractors working across the emirates. Owners here often run mixed fleets of small ships that change hands frequently, and pre-purchase gauging is a practical protection for a buyer when the ship's maintenance record is thin. The climate adds to the case: humid summers, warm seawater and the dust and salt carried onto open decks shorten coating life on hatch covers and weather decks. Container feeder thickness gauging should therefore concentrate on hatch coamings, deck plating near the hatch corners and the tank top plating of the ballast tanks below.
Wherever a ship is outside a sulphur emission control area, the global 0.50% sulphur cap applies, and many of the ships calling at Sharjah 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.
Typical gauging work in Sharjah
Sharjah jobs are usually smaller in scope than a big-tanker docking but more varied: a feeder's renewal survey, a landing craft before sale, a tanker waiting off Khor Fakkan. Time on board is limited in nearly every case, so we plan readings by priority, prepare the TM plan from the ship's drawings, and agree access with the yard, terminal or master before the team boards.
- Renewal-survey gauging of a general cargo ship laid up at Port Khalid: holds, hatch covers and coamings, tank tops, double-bottom ballast tanks and the weather deck.
- Pre-docking readings on a container feeder taken alongside at Khor Fakkan, ahead of its second renewal survey at a Gulf yard after the next rotation.
- Pre-purchase gauging of a landing craft at a Hamriyah yard, sampling the bow ramp structure, cargo deck and ballast tanks for a prospective buyer.
- Seawater cooling and fire main pipe gauging on a small tanker idle at Hamriyah, where warm intake water and marine growth have thinned the pipe runs.
- Condition gauging on a tanker waiting off Khor Fakkan for orders, covering deck, ballast tanks and accessible cargo-tank structure for an on-hire record.
How a thickness measurement job runs at Sharjah
The sequence for a thickness measurement job at Sharjah is short and written down, so the yard, the surveyor and the superintendent know who arranges what.
Sharjah International Airport (SHJ) has direct flights from many Indian cities and is close to Port Khalid and Hamriyah; Dubai International (DXB) is an alternative. Khor Fakkan is reached by road through the mountains to the east coast. Port Khalid, Hamriyah and Khor Fakkan need ISPS passes arranged by the ship's agent, free-zone yards need entry permits through the yard, and for anchorage jobs the agent also books the launch. The team's UAE visas are processed before departure, so we ask for the ship's dates as early as they are known.
- 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.
Who does the work, and when class approval applies
We send the team from India to the ship for each job rather than keeping staff at the port, and plan the mobilisation around visas and the vessel's itinerary. The work is planned and supervised by the founder, our Responsible NDT Level III (ASNT NDT Level III in UT, RT, MT, PT and VT, with more than eleven years of international field experience). Technicians hold certification under the company's written practice to ASNT SNT-TC-1A; Atlantis is ISO 9001 and ISO 14001 certified.
Thickness measurement that a classification society credits to a class survey has to be carried out by a firm approved by that society under IACS UR Z17. Atlantis is in the process of obtaining UR Z17 approval from DNV, Lloyd's Register and ABS. Until a certificate is issued, the readings we take are for the owner's own decisions, not for credit to a class survey, so tell us the vessel's class and the survey due when you enquire and we set the scope for the right purpose. Owner's and charterer's condition gauging, pre-docking steel estimates, pre-purchase and on-hire or off-hire gauging, and scrubber and piping condition checks between surveys do not need class approval.
Governing codes and standards
- IACS UR Z7 hull classification surveys
- IACS UR Z10.1 to Z10.5 (oil tankers, bulk carriers, chemical tankers, double-hull and double-skin ships)
- IACS UR Z17 approval of service suppliers
- SOLAS chapter XI-1 regulation 2 and the 2011 ESP Code
- MARPOL Annex VI regulation 14 and the 2021 EGCS Guidelines (MEPC.340(77))
- The rules of the vessel's classification society
What you receive
- Thickness measurement report on the class formats, with sketches
- Summary of substantial and excessive corrosion against allowable margins
- Pitting and grooving records with depth and extent
- Piping wall-thickness tables with isometric sketches
- Magnetic particle or penetrant crack-detection reports
- Gauge calibration records and technician certificates
Industries served
- Container feeder ships
- General cargo and multipurpose ships
- Landing craft and coasters
- Small tankers and gas carriers
- Tugs and workboats
- Bulk carriers
- Ro-ro ships
Frequently asked questions
Can you cover a ship at Khor Fakkan and another at Port Khalid on one trip?
Often, yes. Both are in Sharjah and are linked by road through the mountains, so a team in the UAE for one job can move to the other coast if the dates line up. We plan the sequence around the ship with the firmer schedule and keep the agent at each port informed, so passes and launches are ready when the team arrives.
What usually needs gauging on an older general cargo ship in Sharjah?
General cargo ship gauging normally covers hatch coamings and covers, the weather deck around hatch corners, hold frames and brackets, tank tops and the double-bottom ballast tanks. On older ships, holds that have carried scrap, steel products or wet bulk cargo show local pitting and grooving at frame end brackets. The class renewal survey sets the minimum extent; for a buyer or charterer we widen it to the areas that drive repair decisions.
Is ship inspection in Sharjah possible on a vessel that is laid up?
Yes, and a lay-up is often the best moment. A ship idle at Port Khalid or a Hamriyah berth usually has gas-free tanks and time to spare, so a full TM plan can be worked through without cargo operations getting in the way. The owner must still arrange safe access, ventilation, lighting and a standby person for every tank entry, even with a reduced crew.
How does the east-coast location of Khor Fakkan help with planning?
Ships on the east coast are outside the Strait of Hormuz, so a container ship or tanker calling at Khor Fakkan or waiting nearby can be gauged without a detour into the Gulf. For owners whose vessels pass the east coast regularly, Khor Fakkan or nearby Fujairah can be the most convenient place to fit pre-docking readings or a condition check into the ship's normal trading pattern.
Does thickness measurement at Sharjah need class approval?
Thickness measurement that a classification society credits to a class survey has to be carried out by a firm approved by that society under IACS UR Z17. Atlantis is in the process of obtaining UR Z17 approval from DNV, Lloyd's Register and ABS. Until a certificate is issued, the readings we take are for the owner's own decisions, not for credit to a class survey, so tell us the vessel's class and the survey due when you enquire and we set the scope for the right purpose. Owner's and charterer's condition gauging, pre-docking steel estimates, pre-purchase and on-hire or off-hire gauging, and scrubber and piping condition checks between surveys do not need class approval.
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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