Appendix B - Driveway Slope & Stability Assessment (Tectonic)

Contour Consulting Engineers                                                                            23038-001-Rev0
                                                                                                          6 March 2023




                                                                                 Indicative Proposed Driveway Alignment
                            Subject Site




Text Figure 1: Aerial image of site and surrounds from 2022 (courtesy of Nearmap imagery), with inset

Preliminary drawings prepared by Contour Consulting Engineers (Ref. Plan No. 3225-SK01 & SKO2,
Revision P1 dated 1 August 2022) indicate that the proposed driveway will be located in the north-western
part of the site between an existing residence and shed. Provided sections indicate that the driveway will
be created mostly by excavating up to about 1 m deep into the slope, with filling <0.5 m high required for
the crossover, and edge batters to be formed at about 1V:4H. Text Figure 2 below shows the proposed
driveway layout and some cross-sectional views.




Text Figure 2: Proposed layout (LHS) and some cross-sectional views (RHS), courtesy of Contour Consulting Engineers

1.2    Method and Scope of Investigation
As part of our slope stability assessment, a desk-top study was carried out comprising a review of
published geological maps and slope stability studies.

A walk-over survey was conducted to make an appraisal of the general condition of the site in regard to
topography, drainage, vegetation cover, geology, erosion and condition of existing structures. The walk-
over survey was carried out by an experienced geotechnical engineer from Tectonic on 15 February
2023.

The results of the desk-top study and walk-over survey are included in Section 2 below.

1.3    Qualifications of Responsible Engineer
This report has been reviewed by Mr Ashley Davey, an RPEQ with more than 27 years’ experience in
geotechnical engineering, including a number of slope stability projects.




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