Gloucester and Avon Rivers flood management studies and plans
Most flood studies, risk management studies and plans are available for download using the links below. Copies may also be purchased by contacting us on (02) 7955 7777. In circumstances where more detailed flood study interpretation is required it may be necessary to consult a registered surveyor and/or suitably qualified engineer.
Manning Valley flood studies and plans
In November 2016 an updated flood study for the Manning River catchment was adopted. It aims to assist us to better understand, plan and manage the risk of flooding in our region.
The Manning River catchment has a history of major flooding, including the significant events of 1978, 1990 and 2021 and the smaller events in 2011 and 2012.
In order to appropriately plan for future flood events and reduce the potential impacts of flooding on our community, an updated Manning River Flood Study was conducted during 2015 by specialists BMT WBM, with the valuable input of locals who shared their experiences of flooding in the area.
We then completed a Floodplain Risk Management Study and Plan for the Manning River in 2020. This document considers several flood mitigation options including road raising for key regional transport routes and a levee for the Taree CBD.
Flood studies have also been completed for both Wingham (2011) and Lansdowne (2015). The reports can be viewed by clicking the links below.
Great Lakes flood management studies and plans
Most flood studies, risk management studies and plans are available for download using the links below. In circumstances where more detailed flood study interpretation is required it may be necessary to consult a registered surveyor and/or suitably qualified engineer.
Wallis Lake
Port Stephens and Lower Myall
Wallamba River and Nabiac
Bulahdelah and Upper Myall
Smiths Lake
Karuah River
Floodplain management
MidCoast Council, along with NSW Office of Environment and Heritage conducts flood studies for all lakes and rivers in the region.
There are 4 stages in floodplain management:
1) Flood Study - Determines the actual flood behaviour and the extent of the flood problem.
2) Floodplain Risk Management Study - Evaluates various management options for the floodplain, considering existing and proposed developments.
3) Floodplain Risk Management Plan - Confirms the management measures and costs before acceptance by Council.
4) Plan Implementation - Involves project planning to put the floodplain management solutions in place, whilst making sure they are compatible with existing Local Environmental Plans.
For information regarding our Floodplain Management Advisory Committee click here.
Climate change
It's predicted that global warming will potentially worsen the severity of flooding and coastal erosion though a combination of rising sea levels and more severe storms. Peak flood flows and depths will increase.
In the Great Lakes region, we have adopted as policy the Sea Level Rise Benchmarks (NSW Government, 2009) of 0.50m by 2060 and 0.90m by 2100. These estimates may change with further scientific advice. A review of Council sea level benchmarks is expected. This will lead to a revision of Council's floodplain mapping and management.