Page 2 - Newham SuDS DESIGN & EVALUATION GUIDE

Preface Contents

1.0 Introduction

Why this guide is needed What the guide provides 2.0 Understanding Rainfall 4

Our understanding of the negative impacts This guide links the design of SuDS with the 3.0 The Impact of Development 9
of conventional drainage are now well evaluation requirements of planning in a 4.0 The Role of SuDS 13
understood. sequence that mirrors the SuDS design

process. 5.0 The SuDS Design & Evaluation Process 17
Pipe drainage collects and conveys water
away from where it rains, as quickly as This guide promotes the idea of integrating 6.0 Local SuDS requirements 21
possible, contributing to increased risk of SuDS into the fabric of development using
flooding, likelihood of contaminated water the available landscape spaces as well as the 7.0 Stage 1: Concept Design 25
and the loss of our relationship with water construction profile of buildings. This 8.0 Stage 2: Outline Design 57
and the benefits it can bring to us all. approach provides more interesting
surroundings, cost benefits, and simplified 9.0 Stage 3: Detailed Design 67
Sustainable Drainage, or SuDS, is a way of future maintenance.
managing rainfall that mimics the drainage 9.1 Objectives of Detailed Design 68
processes found in nature and addresses the This guide begins by giving a background
issues with conventional drainage. context for SuDS design. Next, the three 9.2 What Detailed Design Should Demonstrate 68
accepted design stages are described: 9.3 Typical Detailed Design Package 69
Who this guide is intended for
2 Concept Design, Outline Design and Detail

In 2010 the Flood and Water Management Design. Subsequent chapters offer 9.4 Critical Levels 76
Act proposed that SuDS should be used on supporting information. 9.5 Designing for Hydraulic Requirements 77
most development and this was confirmed in It is intended that this guide will facilitate
a ministerial statement on 23 March 2015 9.6 Controlling Flows 93
consultation, in order to achieve the best
introducing the ‘non statutory technical possible SuDS designs. 9.7 Water Quality 102
standards’ for SuDS.
9.8 Amenity 107
The responsibility for ensuring that SuDS are
designed and implemented to a satisfactory 9.9 Biodiversity 111 3
standard lies with the Local Planning
Authority (LPA). 9.10 Planting Design for SuDS 113

SuDS Designers will need to meet these 9.11 SuDS Components 123
required standards when submitting 9.12 Management of the SuDS Landscape

proposals to the LPA. 139

Acronyms used in this document inside back cover

London Borough of Newham SuDS D & E Guide © 2018 McCloy Consulting & Robert Bray Associates