Asphalt Specialists In Hydraulic Engineering


Coastal Protection
Dam Waterproofing
Dam Erosion Protection
Dam Spillway Protection
Ports & Harbours
Flood Alleviation
River Training

Scour Protection

Revetment Toe Protection

Quayside Scour Protection

Bridge Pier Scour Protection
Underwater Impact Protection
Strengthening Rock Structures
Landfill Linings
Offshore Services
Vulcaanhaven - Rotterdam

Quayside Scour Protection - Vulcaanhaven, Rotterdam

Layers of rock have traditionally been used to provide scour protection in front of quay walls. Open Stone Asphalt mattresses provide a thinner and more secure protection layer.

At Vulcaanhaven scour protection was provided to protect the quay wall against the high forces generated by bow-thruster propellers. Instead of a traditional 1-2m deep rock layer, the specified solution was to use 0.2m thick OSA mattresses. This resulted in less excavation and a reduced depth of sheet piling necessary.

10,000 m2 OSA mattresses were placed. Individual mattresses weighed up to 150 tonnes and were placed using GPS and checked by divers.

Port Scour Protection

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