Design events
Assess generated rainfall events across durations and temporal patterns to identify controlling basin depth and drawdown.
Stormwater modelling for Australian practice
BaSIM
Design and test infiltration basins with an engineering workflow built for civil and stormwater practitioners. Compare design events, quantify groundwater mounding and drawdown, and assess long-term clogging in one place.
Start a basin analysisCredits are purchased and shared at project level.One design or clogging submission uses one simulation credit.
What BaSIM does
A clear route from rainfall or inflow to basin performance.
BaSIM uses the Green-Ampt/Hantush 3D basin engine with ARR and BoM design inputs for generated-event analyses. It is built for practitioners who need a repeatable basis for infiltration-basin sizing, verification, and maintenance planning.
Hydraulic response
Model infiltration, groundwater mounding, overtopping, and configured outlet structures in the same basin route.
Clogging outlook
Evaluate how declining hydraulic performance changes storage and drawdown over the design life.
Simple project billing
Buy simulations where the work happens.
Simulation credits belong to a project, so colleagues can work from the same balance. Pricing is shown in Australian dollars. Tax treatment will be confirmed at checkout.
1,000 simulations
For project evaluation and early design work.
10,000 simulations
For sustained project delivery and scenario work.
Government access
Authenticated email addresses ending in .gov.au receive unlimited free simulations.