WaterEngineerLabENGINEERING TOOLS & METHODS
TOOL-002 · V1 Release

Rainfall / IDF Design Storm Helper

Record a project-supplied design storm intensity and calculate total rainfall depth.

Use a project-approved IDF or design-storm source for intensity.
Design event

Design storm result

Enter the supplied event values to calculate depth.

Methodology

Supplied design storm intensity

TOOL-002 records a project-approved rainfall intensity and computes depth with P = i × t. SI and US intensity inputs are normalized to canonical SI units.

Scope

The selected return period, duration, source and location are retained for traceability. The helper does not derive an IDF curve, interpolate a table, or choose a jurisdictional coefficient.

Limitations

This helper does not calculate runoff, time of concentration, detention routing or network hydraulics, and does not establish code compliance.

SRC-IDF-DESIGN-STORM-TOOL002-001