Downfall Creek restoration project at 7th Brigade Park - Chermside
Brisbane City Council is protecting waterways and greenspace so you can enjoy the lifestyle our great city has to offer, with important works to improve the health of Downfall Creek in 7th Brigade Park, Chermside.
|Address||375 Hamilton Road, Chermside|
Restoring a section of Downfall Creek in 7th Brigade Park to improve waterway health, enhance the stability of the creek and reduce erosion and sediment loss.
Works occurring from late March 2021
About the project
Council is committed to achieving its vision of the Brisbane River, Moreton Bay and waterways being clean, healthy and resilient ecosystems. Council undertakes work in waterways, works with local and regional partners, and invests in regional outcomes to achieve this vision. Managing in-stream erosion and sediment movement is a key factor for maintaining the health and functionality of local waterways and improving the downstream environments of Moreton Bay and the Brisbane River.
A city-wide study into sediment loss and waterway erosion identified a stretch of Downfall Creek in 7th Brigade Park as a priority area for rehabilitation and enhancement works to reduce further bank erosion and sediment pollution and improve overall waterway function. This site is affected by powerful flows from rainfall events which is leading to increased erosion of the banks and waterway channel, causing increased instability of the creek. This contributes to the generation of sediment downstream and into Moreton Bay and impacts on aquatic habitat and water quality.
Brisbane City Council, the Port of Brisbane and the Council of Mayors’ (SEQ) Resilient Rivers Initiative are partnering together to co-fund the rehabilitation and enhancement works.
The objective of this project is to improve waterway health outcomes, including to reduce erosion and improve the condition and stability of the identified reaches of Downfall Creek within 7th Brigade Park.
The works aim to provide many benefits including:
- stabilising the creek landscape to reduce sediment loss and erosion, avoiding up to 7.5 shipping containers worth of sediment movement downstream annually
- planting native creek vegetation including over 2500 new trees to increase and connect habitat for land and aquatic wildlife
- improving instream habitat and water quality within the creek
- improving ‘natural’ visual amenity.
Understanding and addressing all the factors that contribute to erosion and sediment pollution is integral to restoring the health of Downfall Creek within 7th Brigade Park.
- Downfall Creek Restoration Project newsletter (PDF – 2.3Mb)
- Downfall Creek Restoration Project newsletter (Word – 899kb).
The project will use the following methods to restore the waterway and better protect it into the future.
Natural Habitat Planting
Planting appropriate vegetation along the banks of waterways and in areas where rainfall runoff flows overland to the waterway helps stabilise the soil and can greatly reduce erosion, topsoil runoff and sediment pollution entering our waterways. Vegetation planting along waterways also has additional benefits of increasing shade, improving water quality, creating and protecting natural wildlife habitat and improving amenity. The project is targeting planting 100% native vegetation. Plants have been selected based on their effectiveness in erosion and sediment control and improving overall waterway health. Invasive weed removal allows important native vegetation and wildlife habitat to flourish without needing to compete for space, nutrients and sunlight.
Hard landscaping / creek bank and in stream works
Sediment deposits within the waterway will be removed in selected areas. The banks of the waterway channel will also be altered in selected areas to help improve stability and address erosion. Installing specialised structures within the creek will also improve movement for aquatic species. Rock embankment works and slope improvements will stabilise erosion and reduce sediment runoff in areas of high water velocity on the banks and within the creek.
Council has partnered with Port of Brisbane and Council of Mayors’ (SEQ) Resilient Rivers Initiative to co-fund the Downfall Creek restoration project in 7th Brigade Park.
The Port of Brisbane are investing in this waterway management project aimed at mitigating erosion and reducing sediment loads to Moreton Bay as part of their off-site stormwater treatment program.
The Council of Mayors’ (SEQ) Resilient Rivers Initiative is also investing into the project. The Resilient Rivers initiative is a collaborative effort between local and state government, water utilities and key non-government organisations to improve the health and resilience of South East Queensland's catchments, rivers and Moreton Bay.
The restoration works will be completed in stages, according to their effectiveness in reducing erosion and stabilising the creek area. Some sections of vegetation planting are planned for delivery in future financial years subject to available budget.
Restoration works are occurring from late March 2021, with the priority works anticipated to be completed by the end of 2021, weather and construction conditions permitting. Works will take place from Monday to Friday between 7am and 5pm with weekend works if required.
Attend a community planting day or join a creek catchment group
As part of the project, residents are invited to join Council at community planting days in 7th Brigade Park. View the event dates, register to attend, or find out more on Council's Your Say website.
If you would like to join an ongoing group to do hands-on volunteering to help restore creek catchments across Brisbane:
- visit the Creek Catchments program page
- email Creek Catchment Officers
- phone Council on 07 3403 8888 to learn more.
Works will adhere to rigorous environmental controls with appropriate permits in place to reduce the impact of works to existing habitat and wildlife in the area. Where necessary, temporary fencing and signage will be in place to direct park users. Residents in close proximity to the park may experience some construction noise and increased dust during works.
The restoration works will require some tree removals including small natives and weed trees. As part of this project, Council will plant native creek vegetation throughout the project area, including more than 2500 new trees to increase and connect habitat for land and aquatic wildlife.
Every effort will be made to minimise environmental impacts and a fauna spotter-catcher will be on-site during the removal of vegetation. An Environmental Management Plan will be prepared and adhered to during construction to manage all potential environmental impacts and risks from construction activities. All work will be conducted with Environmental and Natural Assets Local Law permits obtained as part of this project.
For more information about this project, you can:
- phone Council on 3403 8888
- email the project team.