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Sustainable drainage

Sustainable Drainage Systems (SuDs) seek to manage rainfall in a way similar to natural processes and refer to a sequence of water management practices and facilities designed to drain surface water in a manner which is more sustainable than traditional pipe networks.

Urbanisation, an ageing sewer network and an increased frequency of intense rainfall events has contributed to an increased risk of surface water flooding.

SuDs seek to mitigate the consequences of these impacts by:

  • Managing surface water runoff in a more sustainable manner
  • Reducing the risk of flooding
  • Protecting and enhancing water quality
  • Providing habitat for wildlife
  • Providing amenity benefits
  • Encouraging groundwater recharge. 

    SUDS

 

Further information regarding SuDs can be found on the Susdrain website.

SuDs Approval Body

Among the new responsibilities assumed by the council under the Flood and Water Management Act 2010 is the establishment of an Approval Body to approve, inspect, adopt and maintain Sustainable Drainage Systems (SuDs) for new and re-developments exceeding one property, where they meet Government thresholds and are built in accordance with National Standards.

Enactment of Schedule 3 of the Flood and Water Management Act 2010 to enable adoption of SuDs has not yet commenced. In December 2014, the Government announced an alternative approach  to delivering SuDs by strengthening existing planning policy instead. Medway Council in it's remit as Lead Local Flood Authority are now a statutory consultee for major developments which have surface water implications. This new responsibility will require LLFA's to provide comments in relation to surface water drainage within 21 days.

Please refer to the Department for Food and Rural Affairs (Defra) website for the latest consultation material and latest developments in the legislation.

Medway Council, in partnership with other Local Authorities within the South East and Aecom consultancy have produced a guidance document for master planning sustainable drainage into developments.  We encourage the approaches outlined in the guidance and urge developers to consider the opportunities and constraints associated with the provision of sustainable drainage as early in the planning process as possible.

SE7 suds masterplanning FINAL low res[1].pdf (10.3MB)