Page 25 - Bexley SuDS DESIGN & EVALUATION

5.5 SuDS design is evaluated at each subsequent design stage

All aspects of SuDS design should be The basic requirements of amenity and
evaluated at each design stage. biodiversity must be demonstrated at each Overview
design stage.
The management of flows and volumes and
the location of attenuation storage should be Health and safety must be considered at
indicated to an appropriate level at the each design stage, with confirmation that this
Concept, Outline and final Detail Design has been achieved through the ‘safety by
stages. design’ principle (see section 8.5).

Similarly, the design will demonstrate the use In the same way, effective, safe and cost-
of appropriate source control measures, effective maintenance of the SuDS scheme

conveyance and other SuDS components and will be ensured through careful design at
how these are arranged in a management every stage.
train with discreet sub-catchments.

Design Note:
As SuDS components don’t manage water most of the time, avoid colouring them blue on
plan. Blue is best used for denoting permanent water bodies, like ponds and wetlands. 20

The ‘swale maze’ at Redhill School is usable as a
play and education space when it’s not raining
and even in small rainfall events.

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