City of Onkaparinga will upgrade the detention basin at William Eatts Reserve, Sellicks Beach to improve stormwater management in the reserve. 

The council says the detention basin’s spillway plays a key role in regulating water levels and protecting community assets, including the Sellicks Beach Community Centre, playcentre and surrounding open space. 

This project is not connected to any potential future growth or development in Sellicks Beach; it has been initiated to address current stormwater flows and improve the performance of existing infrastructure, particularly during heavy rainfall events.

The works will enlarge the existing detention basin to increase capacity during heavy rainfall and will involve removing and later replanting some recently planted trees .

The council says all facilities within William Eatts Reserve including the community centre, tennis courts, playcentre and community garden are expected to remain open and accessible during the works. 

While there may be temporary relocation of parking and some construction noise or dust during work hours, reserve activities are anticipated to continue as normal.