H - Revised Integrated Water Management Plan by Cardno (inc MUSIC file) (13.09.19)

1 Introduction
The Strataflow WSUD Design Guide is a technical guideline developed to assist designers and specifiers integrate
Citygreen’s structural modules into WSUD tree pit and raingarden projects. This document includes a suite of design
applications and standard drawings, as well as a discussion of design considerations that are critical to successful
implementation of WSUD tree pit projects.
This guideline should be read in conjunction with Citygreen’s Specifier Reference Manual, Stratacell and Stratavault and
Stratavault Standard Drawings and Specifications.



1.1 Document Outline
The design guide is organised into the following sections.


Introduction                            This section provides a brief background to WSUD principles and context with
                                        respect to street trees. It also describes the typical benefits and stormwater
                                        management issues involved in implementing street trees.

Integrating WSUD and Stratacell         This section explains the application of Stratacells as WSUD elements, providing
                                        a general description of the cells, benefits to WSUD and an overview of
                                        considerations with respect to tree pits.

Design Methodology                      The design method is described in step by step detail in this section. A design
                                        procedure followed by potential Strataflow configurations relevant to different
                                        project objectives is presented. Then a detailed look at vital technical information
                                        covering system sizing, hydraulics, and tree and soil specification.

Water Quality Modelling                 Provides a brief guide to setting up a MUSIC model and inputting appropriate
and Toolkit                             parameters to enable water quality assessment of the WSUD Stratacell.

Water Balance Toolkit                   An overview of the water balance and step by step procedure is provided in
                                        this section.

Appendices                              Contains Decision Tree, Engineering Drawings, Raingarden Material Specification
                                        and Water Balance Toolkit User Guide




  1.2 WSUD principles
  Water Sensitive Urban Design (WSUD) is a design approach that considers and attempts to mitigate the impacts of
  urban stormwater runoff in a manner which is sympathetic to the receiving environments where water flows. In this
  sense, key WSUD outcomes are to improve water quality and to detain and retain flows so that the water reaching a
  watercourse downstream is treated and has been attenuated such that the receiving water ecosystems will not suffer.

  Other outcomes that WSUD embraces include                        • Protection of groundwater,
    • Utilisation of stormwater as resource,                       • Improved air quality
    • Reduction in potable water use,                              • Improved urban amenity,
    • Healthy and resilient green spaces,                          • Improved micro-climate and shading

  These outcomes will be achieved through implementation of WSUD. This document will assist designers to utilise
  Strataflow in the design solution.




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