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inshaBY SCHNELL
CivilVerified

Stormwater Management

SCS curve number method and detention basin sizing

Verified module: SI units, SBC-referenced, deterministic, with documented verification metadata.

Code references

SCS TR-55

Inputs

ParameterUnit
Watershed Areaha
SCS Curve Number-
Rainfall Intensitymm/hr
24-hr Rainfall Depthmm
Runoff Coefficient-
Impervious Area (optional)ha
Required Detention (optional)m³

Runs in the Insha by Schnell workspace. Verified calculators return explicit pass / fail / warning results with a clause trail.

Related calculators

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 Stormwater Management calculator do?
SCS curve number method and detention basin sizing. It references SCS TR-55.
Which Saudi Building Code references does the Stormwater Management calculator use?
The Stormwater Management calculator references SCS TR-55.
What inputs does the Stormwater Management calculator need?
The Stormwater Management calculator takes 7 inputs: Watershed Area (ha), SCS Curve Number, Rainfall Intensity (mm/hr), 24-hr Rainfall Depth (mm), Runoff Coefficient, Impervious Area (optional) (ha), Required Detention (optional) (m³).
Is the Stormwater Management calculator verified?
Stormwater Management 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.