Reference Document - MCU24/0143 (As Published)

        4 June 2025                                                                          Ref.: 24378-001-Rev1


        RG Strategic
        Attention: Russell Green
        [email protected]


        RE: SLOPE STABILITY ASSESSMENT – EXISTING CABINS
            637 BLACK MOUNTAIN ROAD, BLACK MOUNTAIN

        Dear Russell,


        1.          INTRODUCTION
        Tectonic has undertaken a geotechnical assessment for the existing short-term cabins at 637 Black
        Mountain Road, Black Mountain. This report includes a slope stability assessment, together with
        geotechnical advice for the buildings. In summary, following a recent reassessment of the site on
        27 May 2025, subject to implementation of the recommendations made herein, there would be a Low
        Risk of slope instability affecting the existing cabins in accordance with the Australian Geomechanics
        Society Guidelines for Landslide Risk Management, dated March 2007 (AGS 2007).

        1.1         Details of Site and Proposed Development
        The site is described as Lot 2 on RP167390, covers an area of about 28.7 ha and has frontage to Black
        Mountain Road along the northern boundary. At the time of the site visits a residence and shed were
        situated centrally along the western boundary, with the existing cabins positioned about 150 m to the
        north. Rural residential properties with scattered houses and outbuildings surrounded the site in all
        directions. A 2024 aerial image of the site and surrounds is shown in Text Figure 1. A detailed
        description of the site is given in Section 2.

                                       Subject Site




                                                                                             Existing cabins




                             Residence & shed




                   Text Figure 1: 2024 aerial image of site and surrounds, with inset (courtesy of Nearmap)



        Tectonic Geotechnical Pty Ltd
        A.B.N. 83 165 727 828
        PO Box 899, Buderim, QLD 4556                 E [email protected]
        P (07) 5478 9016
                                                      W tectonicgeo.com.au                                     1 of 12
Document Set ID: 24125427
                  24010296
Version: 1, Version Date: 17/09/2025
                          07/08/2025