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Diver Inspection of Dredged Formation and Adjacent Structures

What is Post-Dredge Inspection?

KCC provides post-dredge inspection services to confirm that dredging has been completed to the specified formation level and to inspect adjacent structures for any dredging-induced movement, scour, or damage. Commercial divers systematically inspect the dredged formation, measuring levels at agreed grid points and recording any areas of over-dredge or residual high spots.

Adjacent structures — seawalls, jetty piles, pipeline crossings, and cable routes — are inspected for settlement, cracking, undermining, and scour. Findings are compiled into a post-dredge inspection report with diver photographs and level measurements, providing the client and engineer with the evidence needed to certify the dredge and identify any remedial works required.

Compliance: Post-dredge inspections are conducted in accordance with CEDD dredging guidelines and IMCA D 045. All diving operations comply with HSE Diving at Work Regulations 1997.

What's Included

  • Formation level measurement at agreed grid points
  • Over-dredge and residual high spot identification
  • Adjacent seawall and structure inspection for settlement and cracking
  • Pile and foundation undermining assessment
  • Pipeline and cable crossing inspection
  • Scour monitoring at structure toes
  • Post-dredge inspection report with photographs and level data
  • Remedial dredge or backfill recommendation

Why This Matters

Dredging to the wrong level — whether under or over — has significant cost and programme consequences. A systematic post-dredge diver inspection provides the client and engineer with independent confirmation of formation level and early warning of any structural effects before they become serious.

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IMCA ADCI HSE HKCP

IMCA · ADCI · HSE · HKCP Compliant

All diving operations conducted to IMCA, ADCI, HSE & HKCP standards

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