KCC provides desilting services for submerged culverts, outfall pipes, and marine drainage structures where silt, debris, and marine growth have reduced flow capacity or caused partial blockage. Culvert desilting is typically required as part of routine maintenance programmes for power stations, drainage schemes, and coastal infrastructure, or as an emergency response to a blockage event.
KCC's commercial divers enter the culvert or work from the inlet/outlet face, using hydraulic jetting, mechanical rods, or suction equipment to break up and remove the accumulated material. CCTV inspection before and after desilting confirms the extent of blockage and the effectiveness of clearance. For culverts too small for diver entry, KCC deploys remotely operated jetting and suction systems.
Compliance: All confined-space diving operations are conducted under IMCA D 045 and HSE Diving at Work Regulations 1997. CCTV inspection follows MSCC5 (Manual of Sewer Condition Classification) standards where applicable.
A blocked culvert or outfall can cause flooding, structural damage, and environmental incidents within hours of failure. KCC provides both planned maintenance desilting and emergency response clearance — keeping drainage systems operational and compliant.
Seawater Intake & Tunnel Desilting
Diver-operated and mechanical removal of silt and marine growth from seawater intake tunnels, cooling water culverts, and power station intake structures.
Harbour & Marina Desilting
Mechanical and diver-assisted desilting of enclosed harbours, marinas, typhoon shelters, and boat basins to maintain navigable depth and water quality.
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Subsea Engineering
Specialist subsea engineering solutions for complex marine construction, structural rehabilitation,
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All diving operations conducted to IMCA, ADCI, HSE & HKCP standards
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