The TNS™ integrates proprietary modular tank, structural cell and drainage void systems – arranged like Tetris beneath the street. Each variant is the same source-control principle, configured to a different depth, capacity and site type.
The full expression of the system: a healthy street tree growing over a structural soil cell and tank module, fed and cleaned by the EnviroKerb™ and ESPPI. Where conventional drainage pipes water past the tree, the Tree Pit System routes it into the root zone – so the canopy is passively watered on every rain event while runoff is filtered at the source.
For grassed verges and landscaped medians, the Nature Strip variant turns the everyday strip between kerb and footpath into working green infrastructure. The EnviroKerb™ and a water ramp unit feed a tank module and drainage cell beneath the turf, holding moisture in the profile so the strip stays green and the runoff stays out of the pipe.
Where the priority is volume and flood mitigation rather than planting, the Storm Retention variant puts the storage to work beneath the pavement. The EnviroKerb™ feeds a drainage cell and tank module sized to detain and slowly release flow – reducing peak discharge to the network and recharging groundwater below.
The Storm Raingarden combines visible bioretention planting with high-capacity modular storage below. A planted raingarden sits over Rigofill ST modular blocks and RigoFlor™ geotextile, marrying the water-quality and amenity of a bioretention bed with the detention volume of a modular tank – a complete WSUD treatment train in one footprint.
Tell us the street, the constraints and the outcome you're after – we'll map the right configuration and provide the standard details.
