Calculate stormwater retention storage

Dimensioning of the storage volume and ponding depth of a stormwater retention storage with throttled discharge – according to DWA-A 117 or DIN 1986-100.

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What does RAINPLANER® calculate for stormwater retention storage?

Dimensioning of the storage volume VR and the ponding depth of a stormwater retention storage with throttled discharge. The calculation is performed in a standard-compliant manner according to current German regulations.

Calculation Methods

DWA-A 117 (02/2014)

Dimensioning of stormwater retention spaces according to DWA working sheet A 117.

DIN 1986-100 (12/2016), Eq. 22

Dimensioning according to DIN 1986-100, equation 22 for discharge restrictions.

Simplified inflow-outflow balance

Simplified balance method for approximate dimensioning.

Additional Features

  • ✅ Throttled discharge configurable
  • ✅ KOSTRA-DWD-2020 rainfall intensities via map selection
  • ✅ Audit-ready PDF report at the push of a button
Basis
  • PrimaryDWA-A 117 (02/2014)
  • AlternativeDIN 1986-100 (12/2016)
  • DataKOSTRA-DWD-2020

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