Bungendore Floodplain Risk Management Plan Implementation

• Project typeCapital works
• Project value$1.2 million
• Project scheduleImplementation Measure 1 completed December 2020
• Contractor nameGuideline ACT

Implementation Measure One - completed

We engaged a contractor to carry out the Bungendore Flood Risk Management Plan Implementation Measure One works. This stage involved clearing of non-native vegetation and reshaping the area where Turallo and Halfway Creeks meet. The reshaping works will help with increased storage for flood water help improve flows. The work has included planting of over 30,000 native trees and shrubs to rehabilitate the creeks.

Flooding of Turallo and Halfway Creeks results in economic and social impacts to residents and business owners in Bungendore. In 2014 Council adopted a Floodplain Risk Management Plan for Bungendore which recommended a variety of flood mitigation measures be implemented. This led to the production of designs for various flood mitigation measures aimed at reducing the impacts of flooding in Bungendore. The Measure 1 flood mitigation works will enhance the capacity for floodwaters to escape more rapidly from the confluence of Turallo and Halfway Creeks during major flood events.

The project has received funding from the NSW Department of Planning, Industry and Environment (DPIE) under the 2019/20 Natural Disaster Resilience Program’s Floodplain Grants Scheme. Under the funding agreement Council provided 1/3 of the funding.

Project schedule - completed December 2020

• Vegetation clearing (weeds and non-native species)
• Excavation works to reshape the creek embankments
• Revegetation which will involve planting native trees and shrubs

Measure two and three

Measure two involves upgrading the existing Turallo Terrace levee, with funding to be applied for in future years. Measure 2 works have been estimated at $2 million. NSW Government is investigating upgrading the levee and if deemed eligible Council could get 100% funding. We are exploring grant funding opportunities and our required contributions in future Council budgets for Measures 2

Measure 3 works involves construction of an overflow channel on Turallo Creek. The estimated cost is $3 million for Measure 3. The Australian and NSW Governments recently announced grant funding for Measure 3. The overflow will be a relief floodway, allowing floodwaters to bypass the Tarago Road bridge crossing of Turallo Creek during flood events. The higher flows will be diverted across Tarago Road upstream of the bridge crossing and will re-enter the creek downstream of the confluence of Turallo and Halfway Creeks. This will direct flood waters away from properties in the Bungendore town centre. The channel will also provide flood storage during major events, decreasing the flood impact on nearby properties. Expected completion in late 2026.

Location

Confluence of Turallo and Halfway Creeks – near the intersection of Bungendore Road and Molonglo Street, Bungendore, Bungendore 2621  View Map

-35.251953, 149.437211

Confluence of Turallo and Halfway Creeks – near the intersection of Bungendore Road and Molonglo Street, Bungendore , Bungendore 2621

Confluence of Turallo and Halfway Creeks – near the intersection of Bungendore Road and Molonglo Street, Bungendore , Bungendore 2621

Bungendore Floodplain Risk Management Plan Implementation