Evidence

This section provides evidence on the performance of SuDS components or schemes. If you have robust evidence of SuDS performance, particularly if they follow good practice principles, or even if they provide some valid lessons that should be shared please contact Paul.

 

General performance

 

Analysis of evidence including costs and benefits of SuDS construction and guidance

Welsh Government, 2017

This report provides an overview of evidence collated through analysis of case studies and interviews.
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Comparative costing of surface water drainage

Defra/WSP, 2013

This report on comparative costs of SuDS and traditional drainage provides information on the costs associated with the construction and operation of drainage systems for three typical residential developments based on the Building Regulations, Sewers for Adoption and the proposed SuDS Standards.

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Costs and benefits of Sustainable Drainage Systems

Committee on Climate Change, 2012

Some research undertaken to investigate the cost effectiveness of SuDS.

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Lamb Drove Sustainable Drainage Systems (SuDS) Monitoring Project

Defra, 2011

The Lamb Drove Sustainable Drainage Systems (SuDS) Showcase demonstrates sustainable water management techniques in a residential development. The main aim of the Showcase project was to reduce the impact of developments on flood risk and reduce the vulnerability of new developments to flooding.

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Overview of SuDS performance

CIRIA, 2009 Draft

This report collates information on the main areas of interest with regards to the delivery of sustainable drainage. This is primarily based on the information and guidance that is currently in the public domain (as of October 2009).

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Post project monitoring of BMPs/SuDS to determine performance and whole life costs 

UKWIR, 2005

This report documents the performance and whole life costs of stormwater practices in the U.S. (Best Management Practices) and UK (Sustainable Urban Drainage Systems) aimed at reducing the impact of urbanisation. 

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A literature review of published material on the performance of various SUDS components

Pratt, 2004 

This review draws attention to those publications which have appeared in conference proceedings and journals which most frequently contain outputs of relevance to sustainable drainage in the UK and overseas.

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SuDS in Scotland – The Monitoring Programme

SNIFFER 2004

The report provides information on the (beneficial) performance of SuDS schemes and components (in terms of water quality, hydrology and amenity) and the factors that affect performance.

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An assessment of the social impacts of SUDS in the UK  

HR Wallingford, 2003 

This report assesses the perception and level of understanding of people living close to seven different SUDS ponds in the UK.

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Comparative costings

 

Comparative costings for surface water sewers & SuDS - Housing, Caledonian Road, Islington  

Defra, 2010 

This report provides a summary of the design and cost implications of incorporating a Sustainable Drainage System (SuDS) in comparison to a conventional drainage system for a dense urban site in Islington, London.

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Comparative costings for surface water sewers & SuDS - Mixed housing development, Hadley, Shropshire  

Defra, 2010 

This report details that a high-density development is amenable to a SuDS drainage solution which is compliant with the proposed Standards and which can provide added value to the development. It also indicates that SuDS in this type of development can offer a cheaper drainage solution than traditional sewers.

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Comparative costings for surface water sewers & SuDS - Railfreight Terminal, Telford, Shropshire  

Defra, 2011 

This report details SuDS working well in a site with a highly demanding industrial use. It was concluded that’s SuDS ought to be readily adaptable to other new industrial and office developments.

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Comparative costings for conventional drainage and SuDS. - Red Hill C.of E. Primary School, Worcester  

Defra, 2011 

This report provides a summary of the design and cost implications of incorporating a Sustainable Drainage System (SuDS) in comparison to a conventional drainage system for a new build school in Worcester.

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Comparative costings for conventional drainage and SuDS - Mixed housing development, Daniels Cross, Shropshire

Defra, 2011 

This report provides a summary of the design and cost implications of incorporating a Sustainable Drainage System (SuDS) in comparison to a conventional drainage system for a new build school in Worcester.

Click here for more information


Evidence on uptake and delivery


A place for SuDS?

CIWEM, WWT, 2017

This report presents evidence from a survey of practitioners on SuDS delivery.

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Evidence from overseas


Sustainable drainage systems: a mission to the USA

DTI, 2006

Report represents a fact finding mission organised by British Water to explore the drivers and approaches to delivering sustainable drainage in the USA.

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An insight into the USA approach - SuDS in Portland and Seattle

MWH, 2012

Report highlights the key learning points from a trip to Portland and Seattle from a group of UK water industry practitioners and describes some of the key factors in the successful application of SuDS.

Click here for more information

 

Comparing the arrangements for the management of surface water in England and Wales to arrangements in other countries

MWH (for Ofwat), 2011

The report compares the approaches to managing surface water in England and Wales to Sweden, the USA, the Netherlands, Australia, New Zealand and Scotland by looking at governance, funding and regulations as well as exploring influential drivers.

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