Sustainable drainage systems (SuDS) are a natural approach to managing drainage in and around properties and other developments.

SuDS work by slowing and holding back the water that runs off from a site, allowing natural processes to break down pollutants.

Types of SUDS

• Source control measures deal with run-off at, or close to, the surface where rainfall lands.

• Site control measures manage the surface water run-off from larger areas, such as part of a housing estate, major roads or business parks.

• The run-off from larger areas can be channelled to a site control measure using swales (shallow drainage channels) or filter drains.

• Regional control measures downstream of source and site controls deal with the gathered run-off from a large area. These systems use the same principles as smaller scale SuDS, but can cope with larger volumes of water.

• Rainwater that passes through small SuDS can feed into larger SuDS which deal with the gathered run-off from a wide area. It is best to connect the flows between SuDS components with swales, filter drains or ditches and avoid the use of pipes.

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Tubridy Engineering will provide the expertise and design know how to develop customised solutions to solve your projects drainage needs.