Storm Drainage
Rational method, inlet sizing, pipe capacity
Verified module: SI units, SBC-referenced, deterministic, with documented verification metadata.
Code references
Inputs
| Parameter | Unit |
|---|---|
| Catchment Area | ha |
| Runoff Coefficient C | - |
| Rainfall Intensity | mm/hr |
| Pipe Slope | m/m |
| Pipe Diameter | mm |
| Manning's n | - |
| Maximum velocity | m/s |
Runs in the Insha by Schnell workspace. Verified calculators return explicit pass / fail / warning results with a clause trail.
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Insha by Schnell is in beta. All calculator outputs require review by a licensed SCE-registered engineer before submission to MOMRA, Civil Defense, MODON, the Royal Commission, or site execution.
Frequently asked questions
- What does the Storm Drainage calculator do?
- Rational method, inlet sizing, pipe capacity. It references HEC-22.
- Which Saudi Building Code references does the Storm Drainage calculator use?
- The Storm Drainage calculator references HEC-22.
- What inputs does the Storm Drainage calculator need?
- The Storm Drainage calculator takes 7 inputs: Catchment Area (ha), Runoff Coefficient C, Rainfall Intensity (mm/hr), Pipe Slope (m/m), Pipe Diameter (mm), Manning's n, Maximum velocity (m/s).
- Is the Storm Drainage calculator verified?
- Storm Drainage is a verified module: SI units, SBC-referenced, deterministic, with documented verification metadata. Like all Insha by Schnell outputs, its results require review by a licensed SCE-registered engineer before submission or site execution.