Chapter 9 — Small-Scale Green Infrastructure¶
Small-scale GI practices are applied at the lot or parcel level. They typically treat contributing areas up to 5 acres.
| BMP | Description |
|---|---|
| Bioretention | Vegetated depression with engineered media |
| Dry Well | Subsurface infiltration structure |
| Grass Swale | Vegetated conveyance channel |
| Green Roof | Vegetated roof system |
| Infiltration Basin | Open basin designed for infiltration |
| Pervious Pavement | Porous paving surface with stone reservoir |
| Rain Garden | Small-scale bioretention for residential use |
| Subsurface Gravel Wetland | Gravel-filled subsurface treatment system |
| Cistern | Rainwater harvesting tank with pre-storm void for VRC |
| Small-Scale Sand Filter | Below-grade sand chamber for urban lot water quality |
| Tree Trench | Subsurface infiltration beneath structural cells and tree canopy |
| Vegetated Filter Strip | Dense vegetated area receiving level-spread sheet flow |