Flooding and Stormwater Management

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We are undertaking various flood and stormwater management initiatives, aimed at building a more resilient and liveable Manningham and to facilitate robust planning for the future.

This page provides information relating to the Integrated Water Management Strategy and Manningham Flood Mapping Project.

Integrated Water Management Strategy

The Manningham Flood Mapping Project will inform the development of Manningham Council’s Integrated Water Management Strategy.

This strategy will review flooding and stormwater management risks and respond to emerging challenges, including:

  • population growth
  • development pressure;
  • climate change and associated increasing flood and drought risk.

Integrated Water Management is a collaborative approach to the way we plan for and manage all elements of the water cycle. It considers opportunities to treat stormwater as a resource, rather than a waste for disposal.

The Integrated Water Management Strategy will identify opportunities to reduce reliance on potable water, consider alternative water sources and contribute to planning for a resilient and liveable Manningham.

Integrated Water Management: Why, What, How?

An animated video by DELWP and Clearwater to demonstrate how Integrated Water Management can help all Victorians.



Manningham Flood Mapping Project

Under Regulation 148 of the Building Regulations 2018, Council is now required to prepare mapping for areas under its control that are liable to flooding.

Planned for completion in 2025, the Manningham Flood Mapping Project is being delivered by Melbourne Water and Manningham Council.

It will provide maps indicating flood extents for the regional and local drainage networks in Manningham, for a range of probable storm events.

Flood mapping involves computer modelling, which simulates how stormwater runoff travels through catchments.

Current and reliable flood mapping information is essential to understand and manage flood risk. It is used to:

  • assess the frequency, severity and location of flood risks within catchments
  • better plan and prioritise mitigation activities
  • plan for future development
  • build community awareness; and
  • inform emergency management planning.

The flood mapping process will also be informed by the latest available data and guidance recommended under the 2019 version of Australian Rainfall and Runoff.

Click here for information relating to Corrective Planning Scheme Amendment C137mann, Hillcroft Drive, Templestowe.

Questions?

Please leave your question below using our Q&A tool, or contact Council on 9840 9333, or at manningham@manningham.vic.gov.au.

We are undertaking various flood and stormwater management initiatives, aimed at building a more resilient and liveable Manningham and to facilitate robust planning for the future.

This page provides information relating to the Integrated Water Management Strategy and Manningham Flood Mapping Project.

Integrated Water Management Strategy

The Manningham Flood Mapping Project will inform the development of Manningham Council’s Integrated Water Management Strategy.

This strategy will review flooding and stormwater management risks and respond to emerging challenges, including:

  • population growth
  • development pressure;
  • climate change and associated increasing flood and drought risk.

Integrated Water Management is a collaborative approach to the way we plan for and manage all elements of the water cycle. It considers opportunities to treat stormwater as a resource, rather than a waste for disposal.

The Integrated Water Management Strategy will identify opportunities to reduce reliance on potable water, consider alternative water sources and contribute to planning for a resilient and liveable Manningham.

Integrated Water Management: Why, What, How?

An animated video by DELWP and Clearwater to demonstrate how Integrated Water Management can help all Victorians.



Manningham Flood Mapping Project

Under Regulation 148 of the Building Regulations 2018, Council is now required to prepare mapping for areas under its control that are liable to flooding.

Planned for completion in 2025, the Manningham Flood Mapping Project is being delivered by Melbourne Water and Manningham Council.

It will provide maps indicating flood extents for the regional and local drainage networks in Manningham, for a range of probable storm events.

Flood mapping involves computer modelling, which simulates how stormwater runoff travels through catchments.

Current and reliable flood mapping information is essential to understand and manage flood risk. It is used to:

  • assess the frequency, severity and location of flood risks within catchments
  • better plan and prioritise mitigation activities
  • plan for future development
  • build community awareness; and
  • inform emergency management planning.

The flood mapping process will also be informed by the latest available data and guidance recommended under the 2019 version of Australian Rainfall and Runoff.

Click here for information relating to Corrective Planning Scheme Amendment C137mann, Hillcroft Drive, Templestowe.

Questions?

Please leave your question below using our Q&A tool, or contact Council on 9840 9333, or at manningham@manningham.vic.gov.au.

  • It’s National Water Week – what’s happening in Manningham?

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    Water is a valuable resource and plays a vital role in connecting us all. It is fundamental to the health and wellbeing of our community, as well as the resilience and liveability of Manningham.

    National Water Week (16-22 October) celebrates water innovation and achievements supporting Australia's sustainable future.

    We are undertaking various flood and stormwater management initiatives, aimed at building a more resilient and liveable Manningham and to facilitate robust planning for the future.

    This includes developing a draft Integrated Water Management Strategy, which will identify opportunities to adapt to a more water constrained future. We’re also undertaking flood mapping for Manningham in partnership with Melbourne Water to better understand flood risk.

    Water management is a shared responsibility. To achieve greater environmental, social, cultural and economic benefits, we’re working closely with:

    • Yarra Valley Water
    • Melbourne Water
    • government departments and agencies
    • Manningham’s Flooding and Stormwater Management Community Reference Panel, and;
    • the broader community.

    Manningham Council is also a member of the Yarra Catchment Integrated Water Management Forum. The Forum provides a collaborative platform across the water industry to oversee, support and, where necessary, facilitate water’s contribution to resilience and liveability.

    We can all contribute to a sustainable water future.

    We encourage you to take a look Yarra Valley Water’s Target 155 voluntary water efficiency program. Target 155 encourages metropolitan Melbourne households to use water efficiently, aiming to limit water use to 155 litres per person per day.

    We also welcome Yarra Valley Water’s plans to address discharge from ageing septic systems, which contribute to pollution in Mullum Mullum Creek. This will improve water quality in Mullum Mullum Creek and downstream in the Yarra River. A piped sewerage system is proposed to be constructed in a key area of Park Orchards by 2030. For more information, visit yvw.com.au/ParkOrchards.

  • Building our resilience through water management

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    Water is fundamental to the health and wellbeing of our community and the liveability of Manningham.

    Southern Australia is forecast to receive less annual rainfall on average in coming years. This will reduce water availability from water supply catchments. Water demand is also expected to increase as our City grows.

    Yet, our changing climate is also expected to bring greater intensity rainfall events, increasing our flood risk and periods of low rainfall with increased drought risk.

    We’re working on various flood and stormwater management initiatives to build a more resilient and liveable Manningham.

    Part of this work includes developing a draft Integrated Water Management Strategy. It will respond to emerging water challenges and identify opportunities to adapt to a more water constrained future.

    Earlier this year, we invited the community to take part in Manningham’s Water Future survey. Thank you to those of you who shared how you use and conserve water and why it’s important to you.

    Your responses paint a picture of a community that strongly values the Birrarung (the Yarra River) and our creeks, our environment and wildlife.

    The top three reasons why the Birrarung (Yarra River) and Manningham creeks and lakes are important to survey respondents were:

    1. They provide wildlife habitat and support biodiversity.
    2. Promote connections with nature to support mental health and wellbeing..
    3. Assist with cooling during hot weather and improve neighbourhood liveability.


    You also told us some of the ways you’re already taking action to build our resilience and conserve water.

    • 98% of respondents use front load washing machines, use dual flush toilets or only run washing machines with full loads.
    • 41% of respondents use rainwater collected from private roofs for watering gardens, toilet flushing, carwashing and other uses.
    • More than 85% of respondents also support the use of alternative water sources for garden watering, toilet flushing and laundry purposes.


    These opportunities will be a key focus of the draft Integrated Water Management Strategy, which will be available for public exhibition in mid-2024.

    More information:

  • Integrated water management consultant appointed

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    E2 Design Pty Ltd, trading as E2Designlab, has been appointed to assist us in developing Manningham’s Integrated Water Management Strategy.

    An increasing population and changing climate are putting growing pressure on our water supplies.

    This strategy will review flooding and stormwater management risks and respond to emerging challenges, including:

    • population growth
    • the forecast for reducing annual average rainfall moving forward;
    • increasing flood and drought risk.


    It will identify opportunities to reduce reliance on potable water, harness alternative water sources and contribute to planning for a resilient and liveable Manningham.

    E2Designlab will assist with data gathering to:

    • inform integrated water management targets for Manningham
    • undertake investigations into potential integrated water management capital works improvements
    • provide technical advice, identify and assess opportunities to inform the development of an action plan.


    At its June meeting, Council endorsed a revised version of the Integrated Water Management Strategy Implementation Plan, including the following changes:

    • referral of some actions to now be addressed though the development of the proposed Stormwater Management Strategy.
    • updated reflection of State Government planning to advance Integrated Water Management in Victoria and the Yarra catchment including the recently received transition report.
    • updates to the project communications approach and program.


    We are also working alongside the Flooding and Stormwater Management Community Reference Panel (CRP) in the development of the strategy. The CRP has recently contributed to identifying and prioritising drivers for integrated water management for Manningham.

    Once finalised, the drivers will guide the CRP and Council in developing a draft vision for integrated water management in Manningham.

    The draft Integrated Water Management Strategy will be publicly exhibited in mid-2024, before final adoption early in 2025.

  • Flooding and Stormwater Management Community Reference Panel Meeting 4

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    The fourth meeting of the Flooding and Stormwater Management Community Reference Panel (CRP) was held on 31 May 2023.

    The CRP is helping to guide the development of the Manningham Flood Mapping Project and Integrated Water Management Strategy.

    Summary of Flooding and Stormwater Management CRP Meeting 4 minutes:

    • The focus of the meeting was on responding to questions previously raised by community members.
    • Key differences between the previous and current flood mapping projects were presented, as well as a briefing on land use planning.
    • Officers advised that it is proposed to develop a Flood (Stormwater) Management Strategy in parallel with the flood mapping and development of the Integrated Water Management Strategy. This strategy is proposed to be reviewed once the newly mapped flood extents have been developed.
    • The CRP was also advised that:
      1. Afflux consulting was appointed to progress the local catchment flood mapping.
      2. Council would consider the updated Integrated Water Management Strategy Implementation Plan at its June meeting.

    All meeting minutes will be available on the Your Say Manningham Flooding and Stormwater Management page.

    More information

  • Flooding and Stormwater Management Community Reference Panel Meeting 3

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    The third meeting of the Flooding and Stormwater Management Community Reference Panel (CRP) was held on 29 March 2023.

    Together with the CRP, we’re working to better understand and address increasing challenges to water management, including climate change, development pressure and population growth.

    The CRP is helping to guide the development of the Manningham Flood Mapping Project and Integrated Water Management Strategy.

    Summary of Flooding and Stormwater Management CRP Meeting 3 minutes:

    • Luke Cunningham of Rain Consulting Pty Ltd delivered a presentation on ‘Flood Modelling Methodology and Mapping’, followed by a Q&A session.
    • Feedback was sought from the Panel on the best ways for Council to communicate and engage with our diverse community on these complex issues.
    • A range of questions were raised relating to:
      • how the current project differs from the previous flood mapping project
      • how the flood mapping will consider climate change impacts
      • questions around a potential Planning Scheme Amendment; and,
      • other matters.
    • These questions will be addressed at the May 2023 Community Reference Panel meeting.

    All meeting minutes will be available on the Your Say Manningham Flooding and Stormwater Management page.

    More information

  • Flood mapping consultant appointed

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    Afflux Consulting Pty Ltd has been awarded the Manningham Flood Mapping contract. The project scope includes the modelling and mapping of flood extents, flow depths and velocities for Council extents for a range of scenarios.

    The Manningham Flood Mapping Project is being delivered by Manningham Council and Melbourne Water. This project will provide maps indicating flood extents for the regional and local drainage networks in Manningham. The flood mapping process will also be informed by the latest available data and guidance recommended under the 2019 version of Australian Rainfall and Runoff.

    Current and reliable flood mapping information is essential to understand and manage flood risk. It can be used to:

    • assess the frequency, severity and location of flood risks within catchments
    • better plan and prioritise mitigation activities
    • plan for future development
    • build community awareness; and
    • inform emergency management planning.

    Melbourne Water has appointed Jacobs consultants to undertake flood mapping for the regional flood extents.

    We are working alongside the Flooding and Stormwater Management Community Reference Panel (CRP) in the development of the flood mapping.

    Modelled flood extents will be publicly exhibited late in 2024.

  • Building our resilience through water management

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    We’re inviting the community to help prepare for Manningham’s future by sharing how you use and conserve water, and why it’s important to you via ‘Manningham's water future’ survey.

    Take the survey

    We rely on water for our personal health and household needs, as well as for creating and sustaining the ecosystems. It's integral to food production, energy, health and wellbeing, economic activity, social stability and human life.

    Southern Australia is forecast to receive less annual rainfall, reducing water availability from water supply catchments and increasing drought risk.

    Conversely, the changing rainfall patterns are also anticipated to bring greater intensity rainfall events, which will increase flood risk.

    Your responses will help us better understand community views, priorities, needs and expectations relating to Manningham’s water. We will also use this information to inform how we engage with and deliver information to you on water matters in the future.

    We’re undertaking various flood and stormwater management initiatives, aimed at building a more resilient and liveable Manningham. Part of this work includes developing a draft Integrated Water Management Strategy, which will be available for public exhibition in mid-2024. This strategy will respond to emerging water risks and challenges and identify opportunities to adapt to a more water constrained future

    The survey closes 5 June 2023. You will have the opportunity to enter the draw to win a $100 Westfield gift voucher.

  • Manningham’s water future survey, coming soon

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    Help us prepare for the City's future by telling us how you use and conserve water and why it’s important to you.

    Survey opens 24 April 2023.

  • Flooding and Stormwater Management Community Reference Panel Meeting 2

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    The Flooding and Stormwater Management Community Reference Panel (CRP) held its second meeting on 15 December 2022.

    Together with the CRP, we’re working to better understand and address increasing challenges to water management arising from climate change, development pressure and population growth.

    This meeting focused primarily on undertaking some preliminary work, which will help guide our approach in developing the Integrated Water Management Strategy.

    The CRP was tasked to identify and prioritise drivers for integrated water management for Manningham. This list will be further refined by the CRP at upcoming meetings, with consideration of other stakeholder feedback.

    Once finalised, the drivers will guide the CRP to develop a draft vision for integrated water management in Manningham.

    The CRP will help guide the development of the Manningham Flood Mapping Project and Integrated Water Management Strategy.

    All meeting minutes will be available on the Your Say Manningham Flooding and Stormwater Management page.

    Flooding and Stormwater Management Community Reference Panel Meeting 2 - 15 December 2023 - Minutes

    The next meeting will be held on Wednesday 29 March 2023.

  • Flooding and Stormwater Management Community Reference Panel Meeting 1

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    The newly appointed Flooding and Stormwater Management Community Reference Panel (CRP) held its first meeting on 9 November 2022.

    Together with the CRP, we’re working to better understand and address increasing challenges to water management, including climate change, development pressure and population growth.

    The CRP will help guide the development of the Manningham Flood Mapping Project and Integrated Water Management Strategy.

    Summary of Flooding and Stormwater Management CRP Meeting 1 minutes:

    • Cr Stephen Mayne formally welcomed CRP members.
    • The project team provided a project overview, covering the forecast impacts of climate change and population growth on water availability and flood risk.
    • CRP members discussed the project scope, which includes flood mapping and the preparation of an Integrated Water Management Strategy for the city.
    • CRP members agreed how they will work together, including role and responsibilities.
    • CRP members worked in small groups to discuss what project success would look like.


    All meeting minutes will be available on the Your Say Manningham Flooding and Stormwater Management page.

    More information

Page last updated: 19 Oct 2023, 08:32 PM