Stormwater Engineering Design & Solutions
Pipe networks, Detention storage, Water Quality, MUSIC modelling, HECRAS flood analysis
Stormwater Design
At Dennis Partners, we provide well-documented stormwater management solutions for commercial and civil projects, focusing on both stormwater quantity and quality. We proudly serve the Port Macquarie, Kempsey, Taree, Forster, Nambucca Heads, and Coffs Harbour regions.
If your Development Application (DA) requires a stormwater management plan, our team is here to help. We deliver professional plans that comply with Council conditions, including detention storage, pre- and post-development flow analysis, discharge to neighbouring properties, and water quality treatment and targets.
Contact us today to learn how we can support your project with tailored, council-compliant stormwater solutions.
Our team can provide a no-obligation quote for any residential, house or addition that requires structural engineering, including:
Stormwater Engineering FAQ's
What does stormwater water quantity, e.g., detention design, mean?
Stormwater Water Quantity Design
Objective:
Focuses on managing the flow and volume of stormwater to prevent flooding, mitigate impacts on downstream infrastructure, and ensure controlled discharge from the site during and after development.
Methodology:
Pipes and Pits: Designs typically involve the layout of a standard stormwater drainage system, including pipes, pits, and culverts to effectively collect, convey, and discharge runoff.
Detention Storage: Aims to manage peak runoff rates by incorporating detention basins or tanks that temporarily store excess water, releasing it at a controlled rate to match pre-development flow conditions.
Compliance: Ensures the system meets pre- and post-development runoff flow targets set by councils.
Software:
- DRAINS Software**: Used to model stormwater pipe and pit networks, analyze hydraulic behavior, and determine detention requirements to control peak flow rates during storm events.
What does stormwater quality mean?
Objective:
It focuses on improving the quality of stormwater runoff by reducing pollutants such as sediments, nutrients, and oils before discharging into the natural environment. Thus, it protects ecosystems and meets council-mandated water quality targets.
Methodology:
Treatment Systems: Includes designing systems such as bioretention basins, wetlands, gross pollutant traps, and vegetated swales to filter and treat runoff.
Pollutant Load Reduction: Targets specific reductions in contaminants like Total Suspended Solids (TSS), Total Phosphorus (TP), and Total Nitrogen (TN).
Compliance: Ensures the post-development stormwater quality meets pre-development conditions or council-set targets for environmental protection.
Software:
MUSIC Software: Used to simulate stormwater treatment systems and assess their effectiveness in achieving water quality objectives. The software evaluates pollutant removal processes and ensures compliance with water quality treatment targets.
About Us
Established in 1974 Dennis Partners have been providing engineering services throughout Australia and Papua New Guinea.
Dennis Partners’ engineering firm specializes in the provision of Civil and Structural engineering services in major regional centers such as Newcastle, Taree, Port Macquarie, Kempsey and Coffs Harbour.