Reference document Geotech Investigation · MCU22/0087.01

                                               PROPOSED UNIT DEVELOPMENT
                                               37 BOTTLEBRUSH AVENUE, NOOSA HEADS




                                       2.2 m
                                                                                  0.5 m

                                                                                                   BH2




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




                                                                     Bottlebrush Avenue




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



            4.2         Topography
            As illustrated in Text Figure 6 overleaf, the site is located on the south-westerly facing flank of an ancient
            sand dune which crests about 230 m to the east/north-east. During the site walk-over, topographic features
            specific to the site were noted, and ground slopes were recorded using a hand-held clinometer.

            The natural surface profile had been interrupted by historic landscaping and residential construction; with
            inferred less altered ground slopes along Berrima Row. The inferred natural slopes in the area were
            measured at the time of our assessment between about 9° and 11°. Based on our observations it appeared
            that cut and fill earthworks had been undertaken across the site, resulting in a generally flat building platform
            supported by various retaining walls, as discussed in above in Section 4.1.

            Generally, no irregular surface features were noted which would indicate global slope instability.




             13 May 2022
             Report No. 22151-001-Rev0                              4
Document Set ID: 22198682
Version: 1, Version Date: 05/12/2022