Landslide Hazard Report_compressed

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 ............................................................................................. 7
    3.1     Desktop Study ................................................................................................................ 7
      3.1.1       Detailed Surface Geology........................................................................................ 7
      3.1.2       Noosa Shire Council Landslide Hazard Overlay Map .............................................. 8
      3.1.3       Aerial Imagery ......................................................................................................... 9
      3.1.4       Site History .............................................................................................................. 9
    3.2     Site Inspection/Investigation ........................................................................................... 9
      3.2.1       Groundwater ......................................................................................................... 11
      3.2.2       Surface Drainage .................................................................................................. 11
      3.2.3       Vegetation ............................................................................................................. 11
      3.2.4       Buildings, other structures ..................................................................................... 11
      3.2.5       Site Classification .................................................................................................. 11
4     SLOPE RISK ASSESSMENT .............................................................................................. 11
    4.1     Introduction .................................................................................................................. 11
    4.2     Effects of Development on Land Stability ..................................................................... 12
      4.2.1       Existing Conditions ................................................................................................ 12
      4.2.2       Effects ................................................................................................................... 12
5     PROPOSED DEVELOPMENT IMPACT ASSESSMENT ..................................................... 13
    5.1     Site layout .................................................................................................................... 13
    5.2     Proposed development components ............................................................................ 13




10 May 2022                                     CGC-SR-2022-011-R01-Rev01                                                             Page i