SUPERSEDED Compiled Reference Document - MCU24 0153 & OPW24 0202 (As Published)

                                                                                                Cracking in beam




                Text Figure 4: Concrete block retaining wall (LHS) and beam cracking (RHS) at north of site




                                                                  Cracking in retaining wall


                                             2.1 m




              Text Figure 5: Concrete block wall supporting internal basement undercroft (LHS) and cracking
                                observed in retaining wall (RHS) along southern boundary




        4.2             Topography
        As illustrated in Text Figure 6 overleaf, the site is located on the easterly facing flank of an ancient sand
        dune which crests about 120 m to the north-west. 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 the alleyway bordering the southern site boundary from
        Elanda Street to Henderson Street. Much of the eastern part of the site appeared to be uninterrupted by
        historic landscaping. The inferred natural slopes in the area measured at the time of our assessment
        ranged from about 3° to the west, up to about 15° to the east. Based on our observations it appeared
        that cut and fill earthworks had been undertaken across the site, resulting in a generally flat building
        platform and a terraced lawn and garden areas supported by various retaining walls, as discussed in
        above in Section 4.1.



        Proposed Unit Development
        30 September 2024 | 24265-001-Rev0                                                                              4
Document Set ID: 23376055
Version: 1, Version Date: 28/11/2024