Geotech

                                             PROPOSED UNIT DEVELOPMENT
                                             27 BOTTLEBRUSH AVENUE, NOOSA HEADS

TABLES
Table 1: Summary of Subsurface Profiles ........................................................................................................................... 5

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

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

Table 4: Retaining Structure Design Parameters .............................................................................................................. 13



TEXT FIGURES
Text Figure 1: Layout plan (LHS) and cross-sectional view (RHS) of proposed development, courtesy of Zest ................. 1

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

Text Figure 3: View of the site looking east from Bottlebrush Avenue ................................................................................ 3

Text Figure 4: Panoramic view of the Bottlebrush Avenue street frontage, looking east..................................................... 3




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Text Figure 5: Dilapidation in existing blockwork walls surrounding the residence ............................................................. 3

Text Figure 6: Site plan showing ground surface contours (courtesy Noosa Council ‘Intramaps’) ...................................... 4

Text Figure 7: Extract of Gympie Special 1:100,000 Geology Map ..................................................................................... 4

Text Figure 8: Extract from NSC landslide hazard overlay mapping ................................................................................... 6
                                      AF
Text Figure 9: Slope/W output for long term conditions...................................................................................................... 9

Text Figure 10: Footing depth required to prevent undermining....................................................................................... 12



FIGURES
Figure 1: Site Plan



APPENDICES
           R
APPENDIX A
Borehole & DCP Reports & Explanatory Notes

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

APPENDIX C
Limitations




10 November 2021
Report No. 21286-001-Rev0                                                             iv