Meredith Street Stormwater Management

Stormwater management is an essential part of civil design. It ensures water runoff from developed areas is properly controlled and treated before entering the local drainage network. For this project, ARP was responsible for analysing post-development runoff, determining suitable treatment systems, and integrating the design with the council’s existing stormwater network.

Calculations for runoff were completed using local rainfall data, surface permeability, and site slope. The City of Port Phillip requires designs to achieve compliance through the STORM Rating Tool, which models rainfall and surface drainage performance. ARP used this system to test various configurations and confirm that rainwater tanks, raingardens, and permeable paving would meet the required performance targets.

Once the appropriate control measures were identified, ARP designed a new drainage network for the property. Detailed engineering drawings were prepared showing pipe sizes, pit locations, and connection points to the existing council infrastructure. Construction details were also included for sub-driveway rain tanks, porous pavers, and other on-site treatment features to assist contractors during installation.

The project also required the design of a compliant driveway layout and long section. ARP analysed the existing ground levels to balance cut and fill, helping reduce earthwork costs while maintaining a smooth, accessible gradient in line with council standards.

The final design achieved full compliance with the City of Port Phillip’s stormwater and WSUD guidelines. ARP delivered a practical and detailed engineering solution that manages runoff effectively, supports sustainable water management, and provides long-term performance for the site.