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Waterway Health and Yarra Flows
Presentation to the Port Phillip Bay Sand Flathead Focus Group Meeting
May 2018
Agenda
- Who is Melbourne Water
- Healthy waterways
- Yarra River
- Flow considerations
- Outcomes
Waterway Health and Yarra Flows Presentation to the Port Phillip Bay - - PowerPoint PPT Presentation
Waterway Health and Yarra Flows Presentation to the Port Phillip Bay - - PowerPoint PPT Presentation
Waterway Health and Yarra Flows Presentation to the Port Phillip Bay Sand Flathead Focus Group Meeting May 2018 Agenda Who is Melbourne Water Healthy waterways Yarra River Flow considerations Outcomes Who is Melbourne Water
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Who is Melbourne Water
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Who is Melbourne Water
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Melbourne Water’s Operating Area
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Healthy Waterway Strategy
Developed goals though a co-design process for the region’s five main catchments – Werribee, Maribyrnong, Yarra, Dandenong and Westernport. Values Environmental conditions
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Delivering the Strategy
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Revegetation programs Rural land programs- fencing and land management Policies and Planning
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Delivering the Strategy
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Litter and pollution reduction programs Protect headwater streams from urban development Alternative Water
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Delivering the Strategy
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Water for the Environment Constructed Wetlands and Stormwater harvesting Education, Capacity building and citizen science activities
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Healthy Waterways Strategy
The draft Strategy is intended that stakeholders and the community are involved in waterway management or activities that may affect waterway condition. The draft Healthy Waterways Strategy considers the needs of Port Phillip Bay and Western Port. This draft Strategy includes water quality targets to protect the health of the bays. Eight major streams enter the bay. Yarra is the largest freshwater inflow.
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The Yarra River
Yarra River and its major tributaries flow through forested, mountainous areas reserved for water supply purposes. The catchment includes major water storages and numerous farm dams, and waterway diversions for agriculture. Flows in the Yarra River and many
- f its tributaries have been
changed significantly. This means it is necessary to actively manage how water flows through them. These flows are called ‘water for the environment”.
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Environmental Flow considerations
Duration, frequency volume, timing, rise and fall. Ecological objectives and possible adverse impacts. Wet, average or dry years- antecedent and future. Water Quality Specific river reaches Available water in the entitlement
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Yarra Flow Volumes
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Yarra River Outcomes
Evolving role of environmental flows Natural events are the main flow events Since managing the releases from 2011 we have seen:
- Improved water quality during releases
- Enhanced ecology
Waterways focus
Understanding characteristics of events key to health
- Science- location, triggers, migration
- Frequency, and flow rates
- Rate of rise, and duration
- Pre event conditions
- Drought influences
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Future opportunities
- Natural ecosystems are complex.
- Continuous learning and improved understanding of species,
impacts from current and future challenges, community expectations.
- Engaged Fishing community.
To have a healthy waterways and bays we all have a role to play.
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Thank you
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