SuDS – Engineering Aspects: Introduction

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The course is based on “The SuDS Manual” published by CIRIA. SuDS are gradually attaining acceptance as the preferred method for draining surface water from new developments. For SuDS to operate correctly they require careful attention to the engineering aspects and an understanding of what problems can arise. The course is aimed at the engineering aspects of SuDS design rather than the amenity and water quality aspects.

Delegates should finish the course understanding:

  • why SuDS are necessary
  • the types of SuDS available and their uses
  • what we mean by “the management train”
  • determining green field run-off (IH124)
  • simulating a rainfall event
  • determination of infiltration rates
  • how these rates are used in the design and sizing of infiltration devices
  • how to calculate open channel flow capacities
  • methods for controlling surface water
  • adoption, maintenance and safety considerations


The course will enable delegates to develop a deeper appreciation and understanding of sustainable drainage systems:

  • Why SuDS is important on all new developments
  • What is required of site investiagtions to BRE365
  • What is involved in estimating green field run-off
  • Open channel flow with reference to swales
  • Adoption and maintenance issues
  • How to intergrate SuDS into urban layouts and the need for early engineer involvement


The course will comprise of sections on:

  • Why SuDS?
  • The types and uses of SuDS
  • The Management Train
  • IH124
  • BRE365
  • Manning’s channel flow
  • Adoption and maintenance
  • Safety considerations


  • Assessment of needs and capabilities of delegates
  • Presentation by tutor with illustrations and photographs
  • Group and individual exercises
  • Summary


  • understanding the basics of SuDS design
  • what to expect from site investigations
  • how to estimate green field run-off rates
  • how to size infiltration devices
  • how to size swales and other open channels
  • who will mainatin SuDS


An introductory course for Engineers, Technicians and others who need to understand the engineering aspects of SuDS design from both a design and a regulation standpoint.


  • Delegates to come equipped with a scientific calculator, pencil and scale rule
  • The course requires some mathematical ability

Categorised in: Roadworks / Utilities / Excavation