KCC provides desilting services for enclosed harbours, marinas, typhoon shelters, and boat basins where silt accumulation has reduced navigable depth or degraded water quality. Unlike open-water dredging, desilting in enclosed basins requires careful management of silt disturbance to avoid re-suspension and turbidity impacts on adjacent vessels and structures.
KCC deploys silt curtains to contain the working area, uses low-disturbance suction dredging or diver-operated vacuum systems to remove silt with minimal re-suspension, and monitors turbidity continuously during works. Removed silt is pumped to shore-based settlement tanks or loaded into sealed barge containers for disposal at a licensed facility in accordance with CEDD and EPD requirements.
Compliance: Works are conducted in accordance with CEDD dredging guidelines, EPD Technical Memorandum on Dredging, and IMCA D 045. Turbidity monitoring follows the Environmental Monitoring and Audit (EM&A) requirements of the project environmental permit.
Silt accumulation in marinas and enclosed harbours reduces navigable depth, degrades water quality, and creates anaerobic conditions that harm marine ecology. KCC's low-disturbance desilting approach removes the problem without creating a secondary turbidity impact on adjacent berths and structures.
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.
Culvert & Drainage Desilting
Diver-operated desilting of submerged culverts, outfall pipes, and marine drainage structures to restore flow capacity and prevent blockage.
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