geotech

                                             PROPOSED UNIT DEVELOPMENT
                                             9 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: Panoramic view of the Bottlebrush Avenue frontage, looking north ............................................................. 3

Text Figure 4: View of the north-western side of the residence (LHS) and dilapidated fence to rear (RHS) ....................... 3

Text Figure 5: Horizontal/vertical separation in concrete pavement and kerb (LHS) and view of neighbouring unit
          building to the west (RHS).................................................................................................................................. 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

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
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

APPENDIX C
Limitations




13 July 2021
Report No. 21169-001-Rev0                                                             iv