Att 2 - BAL Report

                                                                                                                                                             ABN 82 617 701 210
                                                                                                                                              [email protected]
                                                                                                                                               www.bushfireassessmentqld.com.au
                                                                                                                                                            Phone: 0418 799 818


REPORT SUMMARY

A site-specific Bushfire Attack Level (BAL) assessment has been conducted for a proposed new secondary
dwelling to be located at Lot 304 SP118015, 122 Musa Vale Road, Cooroy, in the state of Queensland. This
assessment was conducted with reference to the relevant local council and state planning legislative
instruments. The BAL assessment was conducted in accordance with Method 2 of Australian Standard 3959-
2018 Construction of buildings in bushfire prone areas, and with reference to Bushfire Resilient Communities
– Technical Reference Guide for the State Planning Policy State Interest ‘Natural Hazards, Risk and
Resilience – Bushfire’. This standard and guide are used to assess the potential bushfire threat and calculate
the Bushfire Attack Level (BAL) for a subject site in Queensland. Assuming the separation distances identified
within are adhered to, the BAL rating for the proposed new secondary dwelling has been calculated to be
BAL-12.5.




TABLE OF CONTENTS

TABLE OF CONTENTS .................................................................................................................................................................. 4
1.      INTRODUCTION ................................................................................................................................................................. 5

     1.1.       PROPOSED DEVELOPMENT ............................................................................................................................................... 5
     1.2.       SUBJECT SITE ................................................................................................................................................................ 5
     1.3.       LEGISLATIVE CONTEXT ...................................................................................................................................................... 6
     1.4.       OTHER SITE CONSTRAINTS ................................................................................................................................................ 8

2.      BUSHFIRE ATTACK LEVEL ASSESSMENT METHODOLOGY ................................................................................................... 8
     2.1.       BUSHFIRE ATTACK LEVEL ASSESSMENT METHODOLOGY ............................................................................................................. 8
     2.2.       DESKTOP ASSESSMENT .................................................................................................................................................... 8
     2.3.       FIELD VERIFICATION ........................................................................................................................................................ 9
3.      BUSHFIRE ATTACK LEVEL ASSESSMENT RESULTS ............................................................................................................... 9
     3.1.       ASSESSMENT OF FIRE FOREST FIRE DANGER INDEX (FFDI) ........................................................................................................ 9
     3.2.       ASSESSMENT OF SLOPE .................................................................................................................................................... 9
     3.3.       ASSESSMENT OF VEGETATION .......................................................................................................................................... 11
     3.4.       VEGETATION HAZARD CLASS AND FUEL LOAD/S ................................................................................................................... 12
     3.5.       BAL CALCULATION ....................................................................................................................................................... 16
4.      CONSTRUCTION REQUIREMENTS / CONCLUSIONS........................................................................................................... 17
     4.1.       BAL RATING ............................................................................................................................................................... 17
     4.2.       MAINTENANCE OF SEPARATION DISTANCES ......................................................................................................................... 17
     4.3.       EMERGENCY EVACUATION PLANNING ................................................................................................................................ 18
5.      REFERENCED DOCUMENTS AND SOURCES ....................................................................................................................... 19

6.      APPENDIX A – SITE PLAN/S .............................................................................................................................................. 20
7.      APPENDIX B – BAL CALCULATIONS................................................................................................................................... 23




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