Garnet Street RFI_20150513_ITC (Part 1)

Risk Register - 2700mm RCP
                                                                                                                               Existing Controls of
                                                                                                                                                        Effectiveness of                                                                     Is the Risk
Identified Risk/Hazard                                                             Controls in Place                                Identified                                 Likelihood of Event      Consequence       Risk Rating                            Outcome
                                                                                                                                                        Existing Controls                                                                   Significant?
                                                                                                                                   Risk/Hazard


                                                                                   Fencing and Road barrier proposed, large
All culverts and stormwater inlets with a minimum inlet dimension greater than                                                                                                                                                                              Further assessment
                                                                                   pipes (DN2700), located on watercourse,             Yes                       Good                   2                    3               High                No
375mm, and an expected pipe-full flow travel time greater than 10 seconds.                                                                                                                                                                                       required
                                                                                   Limited Travel Time (<10s)


All culverts and stormwater inlets with a minimum inlet dimension greater than                                                                                                   See Below for          See Below for
                                                                                   Not applicable                                Please Select…          Please Select…                                                      #N/A               #N/A                #N/A
375mm and a conduit containing a potential impact structure.                                                                                                                      Categories…            Categories…

All culverts and stormwater inlets with a minimum inlet dimnesion greater than
                                                                                                                                                                                 See Below for          See Below for
375mm that discharge to waters that are either inaccessible to a potential rescuer, Not applicable                               Please Select…          Please Select…                                                      #N/A               #N/A                #N/A
                                                                                                                                                                                  Categories…            Categories…
or have no suitable egress.

All culverts or stormwater inlets where the assessed safety risk is considered                                                                                                   See Below for          See Below for
                                                                                   Not applicable                                Please Select…          Please Select…                                                      #N/A               #N/A                #N/A
unacceptable.                                                                                                                                                                     Categories…            Categories…

                                                                                                                                                                                 See Below for          See Below for
                                                                                   Not applicable                                Please Select…          Please Select…                                                      #N/A               #N/A                #N/A
                                                                                                                                                                                  Categories…            Categories…



                                                                                                                              Likelihood Table                                                                          Consequence Table
                                                                                                                                      Level                  Descriptor            Description                               Level           Descriptor         Description
                                                                                                                                                                            The event will occur on
                                                                                                                                        1             Almost Certain                                                          5         Major              Fatal injuries
Travel Time Calculation:                                                                                                                                                    an annual basis
Distance = 14.64m, pipe velocity = 1.38m/s, Travel time 10.6s. (>10s)
                                                                                                                                                                            The event has occurred
                                                                                                                                                                                                                                                           Permanent injury or
                                                                                                                                        2             Likely                several times in recorded                         4         Significant
                                                                                                                                                                                                                                                           psychological trauma
                                                                                                                                                                            history


                                                                                                                                                                            The event is likely to                                                         Broken bone or open
                                                                                                                                        3             Possible                                                                3         Moderate
                                                                                                                                                                            occur once in 50 years                                                         flesh wound

                                                                                                                                                                            The event has occurred
                                                                                                                                        4             Unlikely                                                                2         Minor              Cuts and bruises
                                                                                                                                                                            once before

                                                                                                                                                                            The event has not
                                                                                                                                                                                                                                                           Wet clothes or mild
                                                                                                                                        5             Rare                  occurred locally, but has                         1         Very Minor
                                                                                                                                                                                                                                                           scare or mild trauma
                                                                                                                                                                            occurred elsewhere


                                                                                                                                                      Consequence
                                                                                                                                   Likelihood                 1                       2                     3                  4                 5
                                                                                                                                        1                  Medium                    High                  High            Very High         Very High
                                                                                                                                        2                  Medium                   Medium                 High              High            Very High
                                                                                                                                        3                    Low                    Medium                 High              High              High
                                                                                                                                        4                    Low                     Low                  Medium           Medium              High
                                                                                                                                        5                    Low                     Low                  Medium           Medium              High