geotech report · 132003.220660.5

                                                         Site




Plate 6: Extract of Noosa Council’s Landslide Hazard Overlay Map with Noosa Council’s contours overlain

As noted in Section 4.3.1, there were no obvious signs of instability observed however we note the following:
•     The over-steep fill batter slope to the north-west of the site below Bayview Road although no obvious
      signs of instability were noted during our site inspection.
•     The steeper slopes within and neighbouring the site did not show any obvious signs of deep-seated
      instability such as tension cracks, bulging slope faces etc. However, over the steep sided some trees with
      curved bases were noted which suggest possible slow moving creep of the soils.
•     The timber log retaining walls were in variable condition with rotting sections and localised voids at their
      bases suggesting erosion of the soils over time presumably due to uncontrolled run-off.



5.2     Risk Assessment

5.2.1 Potential Geotechnical Hazards
Based on our site observations, assessment of existing conditions as noted above, and the form of the
proposed development, we consider the potential geotechnical hazards for the site may be summarised as
follows:
1. Deep seated instability of the slopes.
2. Slow moving near surface creep of the hillside.
3. Instability of existing retaining walls.
4. Instability of existing fill batter slopes.

32032URrpt                                           9