The 2024-25 Rochester Flood Study is being undertaken by council with technical guidance from North Central Catchment Management Authority, the Department of Energy, Environment and Climate Action, Victoria SES, Goulburn-Murray Water and Coliban Water representatives.
In 2024, more than 100 individuals and small groups provided flood information and photographs, offering valuable data to refine flood models.
Late last year, surveyors examined flood marks and floor levels across the Campaspe River floodplain and Rochester, incorporating additional flood marks identified by locals.
The floodplain model calibration is currently under way, using data from the 2011, 2022, and January 2024 flood events.
Once finalised and approved, the model will map flooding behaviour for various ‘design’ flood events, ranging from a 20 per cent to less than 0.1 per cent chance of occurrence in any given year.
Recent survey information has enhanced the calibration process, with a public review of draft calibration mapping to follow adjustments based on Community Reference Committee input.
Additional field surveys may be required to more accurately identify floodplain features. Community consultation is expected to begin in April or May this year.
“Officers are also in regular contact with the Rochester Community Reference Group and will be seeking their feedback in relation to the Rochester Flood Study, which is also making significant progress,” Campaspe Shire Mayor Daniel Mackrell said.
Cr Mackrell said council appreciated the community’s patience and involvement as it worked towards a comprehensive and reliable flood study for our region.
“Together, we are making strides towards a safer and more resilient future for our municipality and beyond,” he said.
For more information about the study, head to campaspe.vic.gov.au/Plan-build/Works-projects/Updated-2024-25-Rochester-Flood-Study
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