Rock Armour Placement — Protecting Seawall Toes from Wave Action

What is Rock Armour Placement?

KCC places rock armour and armour stone underwater to protect seawall toes, coastal embankments, and marine structures from wave action and scour. Works are carried out from barge using crane placement with diver guidance and inspection.

What's Included

Pre-works seabed survey to confirm existing levels and void extent
Crane placement of rock armour from barge with diver guidance
Diver inspection to confirm correct placement and coverage
Post-works survey to confirm armour profile and coverage

Why This Matters

Rock armour provides durable, long-life protection for seawall toes and coastal structures — dissipating wave energy and preventing scour. KCC's barge-based placement capability ensures armour is correctly placed to the design profile.

Related Services in Seawall Repair & Scour Protection

Grout Bag Installation

Placement of pre-formed grout bags to fill scour voids and reinstate seawall toe structures.

Concrete Block Revetment

Installation and reinstatement of concrete block revetment systems on seawall faces.

Scour Monitoring

Periodic survey and monitoring of scour development at bridge piers, piles, and marine structures.

Part of

Marine Construction

KCC delivers specialist marine construction works across Hong Kong and the region — from seawall rep

View all Marine Construction services

IMCA ADCI HSE HKCP

IMCA · ADCI · HSE · HKCP Compliant

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

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