Dredging for Sustainable Infrastructure
Dredging for Sustainable Infrastructure

The book Dredging for Sustainable Infrastructure gives state-of-the-art guidance on how to design, implement and manage a water infrastructure project with a dredging component to project owners, regulators, consultants, designers and contractors.

Underwater Sound

Underwater sound created by dredging equipment below the water surface can impact marine life and requires careful evaluation and monitoring.

Dredging Sound Levels, Numerical Modelling and Environmental Impact Assessment (EIA)
Dredging Sound Levels, Numerical Modelling and Environmental Impact Assessment (EIA)

Underwater sound from anthropogenic sources and its potential adverse effects on the marine environment is a topic of much global interest. This article gives an overview of known sound source levels for various dredging equipment and activities and describes a method used to extrapolate source levels.

Faunaguard: A Scientific Method for Deterring Marine Fauna
Faunaguard: A Scientific Method for Deterring Marine Fauna

Marine fauna is sensitive to underwater dredging sounds. Scientific research indicates that inducing the fauna to leave an area temporarily before the start of a project minimises serious impacts. And the marine life returns when the dredging is finished.

Monitoring Programme for the Maasvlakte 2, Part III - The Effects of Underwater Sound
Monitoring Programme for the Maasvlakte 2, Part III – The Effects of Underwater Sound

TNO’s acoustic surveys of dredgers during all phases of the dredging cycle showed that permanent hearing threshold shift was not exceeded in any cases studied or in any species in question.

Underwater Sound in Relation to Dredging (CEDA Position Paper)
Underwater Sound in Relation to Dredging (CEDA Position Paper)

The sea is full of fish and aquatic mammals “talking” to each other. Do the sounds of dredging disturb this communication?