Stormwater and sediment control design are essential components of urban and environmental engineering, aimed at managing water flow, mitigating flood risks, avoid environment pollution and ensuring sustainable drainage systems. stormwater design focuses on developing efficient drainage systems, including pipes, channels, detention basins, and green infrastructure, to control runoff, reduce erosion, and prevent property inundation and sediment pollution.

Stormwater Drainage Design

• Site-Specific Solutions: Customized designs for subdivisions, commercial sites, and private developments.
• Hydraulic Modelling: Analysis of pipe networks, channels, and detention basins using DRAINS, MUSIC, or 12D Model.
• Compliance with Council Standards: Meeting local flood control, water quality, and flow-rate requirements.
• Sustainable Drainage (WSUD): Integration of rain gardens, permeable pavements, and bio-retention systems.

Erosion & Sediment Control (ESC) Plans

Silt Fences, Sediment Basins & Stabilization: Meeting the council sediment control and stormwater management guidelines, preventing soil runoff and waterway pollution during construction.

Compliance with State & Local EPA Guidelines: Ensuring adherence to best practices for sediment control.

Construction Phase Support: Inspections and adjustments for ongoing compliance.

Why Choose Us?

✔ Council-Approved Designs – Smooth approvals for DA, CC, and CDC submissions.
✔ Cost-Efficient Solutions – Balancing performance, sustainability, and budget.
✔ End-to-End Support – From concept to construction.

Need a stormwater or sediment control plan? Contact us for a tailored solution! 🌧️

Example Scenarios:

• Residential Subdivision: Designed detention basins + swales to manage overland flow.
• Commercial Development: Implemented WSUD features for water-sensitive urban design.
• Construction Site ESC: Installed temporary sediment traps to prevent creek contamination.

Let’s engineer a smarter, compliant drainage system for your project! 🚀

Trunk drainage system for public domain & large land development/subdivision works

• Stormwater surface flow modelling and 1D/2D analysis using Drains, HEC-RAS or TUFLOW.
  
• Road aquaplaning analysis, culvert capacity analysis. 
• Engineering design of stormwater and drainage infrastructure including culverts, large pipe networks. 
• OSD system and sediment control, retention basins and storage. 
• Water Sensitive Urban Designs compliant with State EPA regulations and council policies.

Local drainage system for residential projects like townhouse, house, duplex, granny flat

• Flood Study / Flood Assessment Report for 'Flood Prone Zone' to determine the flood impact, hazard category and design levels over the land identified in Council DCP/Stormwater management Plans for your property CDC /DA approval.
• Storm flow analysis and drainage network modelling using software programs such as DRAINS/12D Model in concept or construction design stage.
• OSD system, pump system drainage, gravity drainage system, sediment and erosion control.
• Prepare plans, pipe & channel sections, calculations & reports for stormwater outlet approval eg. Section 68 approvals application in NSW.
• Design compliance certificate for stormwater drainage and sediment control design as per National Construction Code, AS/NZS 3500, State EPA regulation and local council policies.

Engineering Review

We offer peer or independent reviews, constructability reviews on projects designed by other engineers nationally.

Need a stormwater drainage system design? Contact us for a quotation or consultation! 🌧️