Slope Stability Report (4) · EXE22/0020

Specialists in transport geotechnics


                                                TABLE OF CONTENTS

1     INTRODUCTION ................................................................................................................... 1
    1.1     Details of Development .................................................................................................. 1
    1.2     Site Location and Description ......................................................................................... 1
    1.3     Qualifications of company and competent person(s) to prepare report. .......................... 2
2     METHODOLOGY .................................................................................................................. 3
    2.1     General .......................................................................................................................... 3
    2.2     Landslide Risk Assessment ............................................................................................ 3
      2.2.1       Implications of Risk Assessment ............................................................................. 4
      2.2.2       Surface Characteristics of Landslides and Hazard Identification.............................. 6
3     EXISTING SITE CONDITIONS ............................................................................................. 8
    3.1     Desktop Study ................................................................................................................ 8
      3.1.1       Detailed Surface Geology........................................................................................ 8
      3.1.2       Noosa Shire Council Landslide Hazard Overlay Map .............................................. 9
      3.1.3       Aerial Imagery ......................................................................................................... 9
      3.1.4       Site History .............................................................................................................. 9
    3.2     Site Inspection/Investigation ......................................................................................... 10
      3.2.1       Groundwater ......................................................................................................... 11
      3.2.2       Surface Drainage .................................................................................................. 11
      3.2.3       Vegetation ............................................................................................................. 11
      3.2.4       Buildings, other structures ..................................................................................... 12
      3.2.5       Site Classification .................................................................................................. 12
4     SLOPE RISK ASSESSMENT .............................................................................................. 12
    4.1     Introduction .................................................................................................................. 12
    4.2     Effects of Development on Land Stability ..................................................................... 13
      4.2.1       Existing Conditions ................................................................................................ 13
      4.2.2       Effects ................................................................................................................... 13
5     PROPOSED DEVELOPMENT IMPACT ASSESSMENT ..................................................... 13
    5.1     Site layout .................................................................................................................... 13
    5.2     Proposed development components ............................................................................ 13




9 August 2022                                   CGC-SR-2022-012-R01-Rev01                                                             Page i