USC FloodStudyUpdate Report - Flipbook - Page 6
REVIEW OF UPPER SOUTH CREEK FLOOD STUDY IN THE CONTEXT
OF ONGOING DEVELOPMENT
TABLE OF CONTENTS
PAGE
FOREWORD ............................................................................................................................... i
ACKNOWLEDGEMENTS ............................................................................................................ i
1.
INTRODUCTION ........................................................................................................ 1
1.1.
Scope and Objectives .................................................................................2
1.2.
Report Outline ............................................................................................ 2
2.
BACKGROUND ......................................................................................................... 4
2.1.
Study Area.................................................................................................. 4
2.2.
Historical Flooding ...................................................................................... 5
2.3.
Precinct Development................................................................................. 6
3.
AVAILABLE DATA ....................................................................................................7
3.1.
Previous Studies.........................................................................................7
3.1.1. Upper South Creek Flood Study (WMAwater, 2012) ...................................7
3.1.2. Upper South Creek Floodplain Risk Management Study and Plan (Cardno,
2017) ....................................................................................................... 7
3.1.3. Other Studies.............................................................................................. 8
3.2.
Aerial Survey ..............................................................................................9
3.3.
Precinct Terrain ........................................................................................ 13
3.4.
Dam Survey .............................................................................................. 13
3.4.1. Pondicherry Dam ...................................................................................... 14
3.4.2. Lowes Creek Dam .................................................................................... 14
3.5.
Buildings ................................................................................................... 14
3.6.
Linear Infrastructure.................................................................................. 14
3.6.1. South West Rail Link ................................................................................ 15
3.6.2. Camden Valley Way ................................................................................. 15
3.6.3. The Northern Road ................................................................................... 15
3.6.4. Bringelly Road .......................................................................................... 15
3.7.
Stormwater Infrastructure ......................................................................... 15
3.7.1. Pit and Pipe Network ................................................................................ 15
3.7.2. Culverts and Bridges ................................................................................ 16
3.7.3. Detention Basins ...................................................................................... 18
3.8.
Gauge Data .............................................................................................. 18
3.8.1. Daily Rainfall............................................................................................. 19
3.8.2. Sub-Daily Rainfall ..................................................................................... 20
3.8.3. Streamflow ............................................................................................... 21
3.9.
Floor Level Database................................................................................ 22
3.10.
Flood Marks .............................................................................................. 22
3.11.
Site Visit ................................................................................................... 23
4.
COMMUNITY CONSULTATION............................................................................... 24
4.1.
Public Exhibition ....................................................................................... 24