Water Quality and Flood Storage Solutions for Bacchus Marsh Development

Water Quality and Flood Storage Solutions for Bacchus Marsh Development

Water Technology has recently undertaken another combined water quality and flood storage functional design, this time for a residential development in Bacchus Marsh. The system uses a sediment pond and bioretention basin to treat the water quality in low flows.  Once a flood event occurs the area fills with water and is sufficiently detained to meet the water quality and storage requirements for Stages 1, 2 and 3 of the development. The unique feature of this rain garden is that the bioretention has a submerged zone which provides a consistent water source for the bioretention plants.  This was an important design consideration for Council as Bacchus Marsh can be subject to long periods without adequate rain.  The system also has a double fail safe system to protect properties downstream.

This is an example of the kind of innovative solutions Water Technology is providing to its clients to achieve outcomes which complement the final product.  By providing unique value and reducing the footprint these rain gardens can add ‘Natural Capital’ which can be factored in to the triple bottom line giving your project an edge.

This system is currently under construction with the Water Technology project manager providing construction adviceto ensure the design intent is carried through the process.essence_sketchup

About The Author

Warwick Bishop
Warwick is a Director of Water Technology and has over 20 years of experience in surface water management. He has led a wide variety of projects covering areas such as flood risk management, water quality, sediment transport, coastal hazard, WSUD and environmental flows. Warwick has an Honours Degree in Civil Engineering from the University of Melbourne and a Masters of Engineering Science Degree from Monash University, investigating the detailed hydraulics of stormwater treatment wetlands. Warwick has experience throughout Australia in both rural and urban contexts. Since 2011 he has provided specialist input to the Flood Intelligence Unit of SES during both catchment and coastal flood emergencies. He is actively involved in Engineers Australia and is the current chair of the Victorian Water Engineering Branch Committee. Warwick has also contributed to the revision of Australian Rainfall and Runoff, with a particular focus on the application of flood models in urban areas.

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