Edinburgh Gardens, Fitzroy Victoria – Raingarden with Stormwater Harvesting
Installation date: October 2011
GENERAL PROJECT INFORMATION
- Edinburgh Gardens is a 24-hectare park located in North Fitzroy, Melbourne, Victoria.
- A Raingarden project was initiated to provide a sustainable source of treated stormwater for the parks mature trees and sporting fields, whilst adding character to the existing landscape of the park.
- The City of Yarra selected GHD to design the raingarden and StormTech system.
DESIGN CONSIDERATIONS
- The raingarden was designed to remove 16,000 kg of total suspended solids (TSS) each year. A further 160 kg of nutrients, phosphorus and nitrogen to be removed through vegetation growth thereby avoiding release of these pollutants into Melbourne’s waterways.
- 200kL of filtered water to be collected in StormTech underground water storage and used to irrigate existing trees. The raingarden is designed to reduce potable water by 4Ml per annum.
- Source stormwater from the North Fitzroy Main Drain to be diverted to the newly designed terraced raingarden.
- Filtered water to be harvested for irrigation of trees within the park and local precinct.
- Main components of the project:
- Diversion pipe with gross pollutant trap
- Surcharge pit into 700 sq.m raingarden with StormTech rainwater catchment chambers providing storage structure
- Terraced raingarden comprising StormTech chambers, appropriate planting and filter media to treat the stormwater
- Overflow pit with underground pipe connected to 200 kL underground storage facility using StormTech chambers.
