Barwon Regional Partnership Councils (BRPCs) face some unique and some common challenges. The selected case studies ranged from those that could be applied regionally, to some viewed as site specific and unique. These case studies ranged from landslides and coastal erosion through to heatwaves and bushfires. The case studies needed to reflect the differing challenges and provide a pathway for understanding and mitigating their impacts.
For example, the Colac Otway Shire needed to understand the risk of landslides, if and what roads could be susceptible to landslides in the event of heavy rainfall, and where greater maintenance efforts should be focused. Spatial Vision’s team, with the support of A.S Miner Geotechnical, drew upon monthly rainfall projections to arrive at 6 different landslide risk hazards based on scenarios of rainfall being the same, drier or wetter. The increased risk of landslides after a wildfire is of particular concern.
In the case of coastal townships, the Great Ocean Road can often be the only point of access to and from these communities. Extreme weather events causing road closures present a myriad of issues as towns face isolation and lack of access to essential services.