Reference Document - Slope Stability Risk Assessment

                                                                                                            ABN: 26 602 913 673
                                                                                                E: [email protected]
                                                                                                               P: (07) 5568 0180
                                                                                                  A: 5/10-12 Claude Boyd Parade,
                                                                                                           Bells Creek, QLD, 4551
                                                                                                         protestengineering.com

Table 3 – Landslide Susceptibility Analysis, using Macgregor & Taylor Method 2001 AG-Journal.



 Criteria                                 Description                   Level                                  Factor
 Natural Surface Slope                    Between 5 and 15              Low                                         0.5
                                          degrees
 Slope Shape                              Planar                        Moderate                                      0.9

 Site Geology                             Sedimentary                   Moderate                                       1

 Soils                                    Residual soil >3m deep        High                                          1.5

 Evidence of Groundwater                  Minor moistness               Moderate                                      0.9

 Concentration of Surface Water           Upper slope                   Moderate                                      0.9

 Evidence of Instability                  No sign of instability        Low                                           0.5

 Relative Susceptibility
                                                                                                                     0.27
                                     Relative Susceptibility        0.27

                                     Hazard Rating                  Low

                                     Hazard Risk Acceptance         Low




 Protest Engineering                                                                                           Reviewed By:




 Sean Kelly                                                                                James Tayler RPEQ#1407
 Geotechnical Engineer                                                      Checking Engineer for Protest Engineering




         Attachments:        1:        Hillside Construction
                             2:        Effluent and Surface Water Disposal

Attachment 1 – Hillside Construction (As per AGS):




PTP/03499 – 328 Upper Pinbarren Road, Upper Pinbarren (Mango Tree Cabin)                                           13 July 2019