North Wagga Flood Mitigation Options Consultation
Woolcott Research and Engagement and Wagga Wagga City Council are conducting the next stage of community consultation for the study currently underway on Flood Mitigation Options for North Wagga. This stage of the consultation consists of an online survey and a telephone survey. The telephone survey will be undertaken by Woolcott calling residents across our Local Government Area to gather their feedback. The written survey is linked to this page.Currently there is a flood levee that provides protection for the village of North Wagga for an estimated 12% Annual Exceedance Probability (AEP) flood event. 12% AEP means that there is a 12% chance (or 1 in 8 chance) of a flood of such a level or higher occurring in any one year. However, many in the North Wagga community are calling for a greater level of protection.
Council is considering three options to provide more protection for the North Wagga and floodplain community to mitigate flood risk.
For more information about the history of flooding in Wagga, flood management, flood mitigation works and the Floodplain Risk Management Advisory Committee, see https://wagga.nsw.gov.au/floods
To learn more about Wagga Wagga City Council's flood mitigation works: https://haveyoursay.wagga.nsw.gov.au/floodfutures
SURVEY: FLOOD MITIGATION OPTIONS: CLOSED
The survey presents the following three options for consideration.
1. Voluntary Purchase and Voluntary House Raising for eligible properties on the floodplain (i.e. including eligible houses in and around North Wagga, Oura, and Gumly Gumly).
2. Upgrade of North Wagga Levee and access: a two-staged approach.
- Stage 1 would involve raising the levee to a 5% AEP level (or 1 in 20 chance of a flood event in any year) to provide North Wagga with a greater level of protection. (The levee at North Wagga is currently a 12% AEP levee that provides protection against a 1 in 8 chance of a flood event in any year).
- Stage 2 would involve the ‘surrounding works’ - raising a portion of Hampden Ave to provide a safe evacuation route for North Wagga residents and raising a section of Mill St to provide an evacuation route for residents within the East St Levee. This stage would also involve the building of bridges and excavation works to offset the levee and embankment and enable equivalent water flow.
3. A combined option, which would include three projects:
- Project 1:
- Upgrading the existing North Wagga Levees (stage 1 of previous option) and;
- Offering Voluntary House Raising and Purchase to those outside the levee boundary (including eligible houses in and around North Wagga, Oura, Gumly Gumly). The purchase and raising would target houses where the risk reduction is greater than the cost of the voluntary house raising or purchase.
- Project 2:
- The ‘surrounding works’ as mentioned in Option 2, Stage 2 – raising access roads, installing bridges and performing excavation between Wagga and North Wagga along Hampden Ave.
- Project 3:
- Offering Voluntary House Raising and House Purchase to residents inside the North Wagga Levee system, where the risk reduction is greater than the cost of the voluntary house raising or purchase.
The online survey has closed.