Residential Stormwater Drainage Design
Budget: $30 – $250 USD
I need comprehensive hydraulic calculations to size and document a residential stormwater drainage system. The scope centres on stormwater drainage design, so every computation should address rainfall capture, conveyance, detention / retention and safe discharge within a typical single-lot subdivision. Please base the work on current local design standards (specify which you use), show all assumptions, and provide clear step-by-step calculations—manual or software-assisted (SWMM, HEC-HMS, Civil 3D, or similar).
Deliverables should arrive as one package that includes:
• A concise design brief summarising rainfall data, runoff coefficients, design storms and regulatory criteria.
• Full hydraulic calculations (peak flows, pipe sizes, slopes, inlet capacities, storage volumes).
• A schematic or plan view (PDF and editable format) outlining proposed pipes, gutters, pits / inlets and any detention tank or soakaway.
• A brief note on maintenance and compliance checks.
Provide outputs that a local authority can readily review and stamp, and label all units and equations for easy back-checking.
Deliverables should arrive as one package that includes:
• A concise design brief summarising rainfall data, runoff coefficients, design storms and regulatory criteria.
• Full hydraulic calculations (peak flows, pipe sizes, slopes, inlet capacities, storage volumes).
• A schematic or plan view (PDF and editable format) outlining proposed pipes, gutters, pits / inlets and any detention tank or soakaway.
• A brief note on maintenance and compliance checks.
Provide outputs that a local authority can readily review and stamp, and label all units and equations for easy back-checking.