Micro Drainage supplies industry standard sustainable drainage and flood
hazard software for the civil engineering and environmental sectors
Calculating Greenfield Runoff
- Runoff from the developed site should mimic the runoff from the site in its “Greenfield” state. (2.2, 2)
- Calculate discharge rates using IH 124 and linearly interpolate for areas smaller than 50 ha using 50 ha runoff. (2.6, 12)
The Source Control Rural Runoff calculator allows you to calculate Greenfield runoff rates and pro-rata for sites less than 50 hectares using the ICP SUDS tab.
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