Bubble Curtain

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This contractor designed and deployed a sound attenuation system to reduce noise travel in the marine environment. This is achieved by creating a bubble ‘curtain’, which creates a wall of small air bubbles from the river bed to the waters surface, vastly restricting noise travel protecting sensitive marine animals such as migrating salmon.

This is a new approach to an age old problem, how to avoid distress to marine animals during impact piling works. Current practice is to stop piling works at certain states of tides, be that 3 hours after low tide and/or 4 hours after high tide, which greatly delays inevitably increasing costs.

Such an approach has not been used in any meaningful way to protect sensitive receptors and certainly not to discharge MMO licence conditions as is this case for this contract. If this condition is fully discharged, we believe it will be the first time it has been fully addressed using such an approach.

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About this entry

Published 2 July 2023
Views 2492

Categories
Defined plan to protect and enhance the natural environment, Identification of flora, fauna and natural resources, Protect the local environment, Removal of invasive species,

Size of site
Medium,

Level of Best Practice
Best practice,

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Jack Endean
Best Practice Hub Coordinator

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