Reference document Geotech Investigation · MCU22/0087.01

                                                         PROPOSED UNIT DEVELOPMENT
                                                         37 BOTTLEBRUSH AVENUE, NOOSA HEADS

            TABLES
            Table 1: Summary of Subsurface Profiles ........................................................................................................................... 6

            Table 2: Stability Risk Levels .............................................................................................................................................. 7

            Table 3: Details of Qualitative Risk Assessment for Property (AGS 2007) ......................................................................... 8

            Table 4: Retaining Structure Design Parameters .............................................................................................................. 14



            TEXT FIGURES
            Text Figure 1: Cross-sectional view (RHS) and basement layout plan (LHS), courtesy PCA Architects ............................. 1

            Text Figure 2: 2021 aerial image of the site and immediate surrounds (courtesy QImagery) ............................................. 3

            Text Figure 3: Panoramic view of the existing unit block ..................................................................................................... 3

            Text Figure 4: Brick retaining wall south of driveway (LHS) and southern terraced outdoor area (RHS) ............................ 4

            Text Figure 5: Western frontage of the allotment (LHS) and distressed wooden retaining wall located downslope
                      of the unit building (RHS) ................................................................................................................................... 4

            Text Figure 6: Plan showing ground surface contours (courtesy Noosa Council ‘Intramaps’) ............................................. 5

            Text Figure 7: Extract of Gympie Special 1:100,000 Geology Map ..................................................................................... 5

            Text Figure 8: Extract from NSC landslide hazard overlay mapping ................................................................................... 7

            Text Figure 9: Slope/W output for long term conditions...................................................................................................... 9

            Text Figure 10: Footing depth required to prevent undermining....................................................................................... 13



            FIGURES
            Figure 1: Site Plan



            APPENDICES
            APPENDIX A
            Borehole Reports & Explanatory Notes

            APPENDIX B
            AGS Guidelines - Qualitative Terminology for Use in Assessing Risk to Property
            Some Guidelines for Hillside Construction

            APPENDIX C
            Limitations




             13 May 2022
             Report No. 22151-001-Rev0                                                            iv
Document Set ID: 22198682
Version: 1, Version Date: 05/12/2022