Flinders Street Tree Replacement and Passive Irrigation
Passive irrigation has been incorporated into the redesign of a streetscape to provide water for trees in a changing climate.
As part of the Urban Forest Strategy, Flinders Street was identified as an opportunity for streetscape redesign and replacement of trees. Between Exhibition and Russell Streets several London Plane trees were in poor health as a result of damage from vehicles and needed to be replaced. To minimise the potential for vehicle damage and allow trees to be planted closer together council took this opportunity to redesign the street. The footpath was widened so that new trees could be planted behind a renewed kerb and channel designed to allow collected stormwater to passively irrigate the trees. The new streetscape includes soaker pits that capture and drain water into an infiltration trench providing water for the trees.
What benefits has the passive irrigation provided?
- Healthy trees that cool the city with shade and evapotranspiration
- Reduced the need for drinking quality water required to support a healthy urban forest
- Reduced the volume of polluted stormwater entering the Yarra River
- Passively watering street trees in busy CBD streets & avenues