| Layer | Parameter | Unit | Infiltration Trench | Vegetative Swale | Rain Garden |
|---|---|---|---|---|---|
| Surface | Bern height | mm | 150 | 350 | 150 |
| Vegetation volume fraction | 0 | 0.6 | 0.5 | ||
| Surface roughness | 0.24 | 0.41 | 0.3 | ||
| Surface slope | % | 1 | 1 | 3 | |
| Swale side slope | - | 3 | - | ||
| Pavement | Thickness | - | - | - | |
| Void ratio (Volids / Solids) | - | - | - | ||
| Permeability | - | - | - | ||
| Soil | Thickness | mm | - | - | 300 |
| Porosity | - | - | 0.5 | ||
| Field capacity | - | - | 0.2 | ||
| Wilting point | - | - | 0.1 | ||
| Conductivity | mm/hr | - | - | 35 | |
| Conductivity slope | - | - | 7 | ||
| Suction head | mm | - | - | 3.5 | |
| Drainage Mat | Thickness | mm | - | - | - |
| Void fraction | - | - | - | ||
| Roughness | - | - | - | ||
| Storage | Thickness | mm | 600 | - | - |
| Void ratio | 0.75 | - | - | ||
| Seepage rate | mm/hr | 24 | - | 200 | |
| Drain | Flow coefficient | 0.69 | - | - | |
| Flow exponent | mm | 0.75 | - | - | |
| Offset | mm | 6 | - | - | |
| Drain delay | hrs | - | - |