Geotech Report - techtonic · RAL22/0021

                            PROPOSED RESIDENTIAL DEVELOPMENT
                            39 PICTURE POINT CRESCENT, NOOSA HEADS

5.0      SLOPE STABILITY ASSESSMENT
5.1      Existing Conditions
The Noosa Planning Scheme 2020 includes a landslide hazard overlay map (Ref. extract in Text Figure 8)
which indicates that the site is within a Moderate Landslide Hazard Area. It is noted that the Noosa Drive
reserve and road corridor below the site to the north is not classified in the overlay mapping.




                                                              Lot boundary




Text Figure 8: Extract from NC landslide hazard overlay mapping

It should be noted that the NC landslide hazard map is a broad-scale indication of the potential landslide
susceptibility and is superseded by this site-specific assessment. The allotment did not exhibit any visible
surface features which would indicate global slope instability during our walkover: no landslide back
scarps, noteworthy groundwater seepage or areas of naturally ‘hummocky’ ground were observed.
Medium dense sands were encountered at all the investigation locations, at depths ranging from about
2.8 m to 3.6 m BGL (existing), with dense sands below.




10 February 2023
Report No. 22511-001-Rev0                             8