Runoff management
Supports localized source-control and conveyance features that slow, spread, store or direct runoff as part of the engineered drainage train.
Stormwater management is a core infrastructure requirement for developments, transport facilities, industrial sites and public spaces. Effective systems must control runoff close to its source, manage peak flow and storage, protect water quality and safely convey or release water without creating erosion, flooding or downstream impacts.
The challenge is not solved by one drainage component. Successful strategies combine source control, attenuation, infiltration, conveyance, treatment and controlled discharge, with each feature designed for site hydrology, soil conditions, pollutant risk, climate exposure, structural loading and long-term maintenance.
For owners, civil engineers, drainage designers and contractors, stormwater performance affects flood risk, regulatory compliance, water quality, asset protection, public safety and whole-life maintenance cost.
Neoloy® Tough-Cells provide 3D cellular confinement that can reinforce key components within Sustainable Drainage Systems (SuDS), Low Impact Development (LID) and conventional stormwater infrastructure. The cells confine soil, aggregate, vegetation media or concrete, helping preserve the designed surface and structural layer.
The cellular matrix distributes loads, limits lateral movement and protects infill against erosion and washout. Perforated cell walls support drainage, lateral water movement and root interlock, while the reinforced layer can stabilize permeable pavements, vegetated swales, open channels, pond slopes and containment structures.
For stormwater infrastructure, Neoloy® Tough-Cells can help:
Neoloy® Tough-Cells are manufactured from Novel Polymeric Alloy – NPA, with engineering properties suited to long-term confinement in wet, exposed and chemically demanding stormwater environments.
Reinforces lined ponds and channels used to separate, store, treat or release higher-risk runoff under controlled conditions.
Reinforces open-graded aggregate, turf, gravel or permeable paving layers while supporting vehicle loading and localized infiltration.
Stabilizes pond slopes, banks, bases and maintenance access, with options for vegetated, aggregate or concrete surfaces.
Holds gravel, concrete or vegetated cover in place under sheet flow and concentrated hydraulic conditions.
Supports localized source-control and conveyance features that slow, spread, store or direct runoff as part of the engineered drainage train.
Perforated cells and permeable infill can support infiltration and lateral water movement where soil and groundwater conditions permit.
Helps maintain the shape and function of swales, ponds, permeable surfaces and channels used to attenuate and manage stormwater.
Stabilized soil and vegetation can reduce erosion and sediment release; pollutant treatment performance depends on the complete system design.
Concrete or protected lining systems can support separation, storage and controlled handling of contaminated or higher-risk runoff.
Supports lined or non-infiltrating solutions where unrestricted infiltration is unsuitable, subject to environmental design and permitting.
Cell confinement limits soil, gravel and aggregate movement under rainfall, sheet flow and localized hydraulic forces.
Provides tensile confinement that holds specified cover materials on pond banks, embankments, ditches and channels.
Cellular concrete sections can accommodate minor ground movement and vibration while limiting transverse cracking.
Reinforces maintenance roads, shoulders, permeable parking areas and access surfaces adjacent to drainage assets.
Maintains separation and protects cover over geotextiles, geomembranes or other specified drainage-system layers.
Supports vegetated swales, turf surfaces, green corridors and multifunctional drainage landscapes.
Folded sections simplify transport and installation; cellular concrete applications can eliminate conventional formwork.
Limiting erosion, material migration and cracking can reduce rehabilitation and operational disruption.
Stable surfaces improve access for inspection, vegetation management, sediment removal and emergency response.
Reinforced slopes and localized systems can conserve land, reduce aggregate displacement and protect existing soil structure.
An international airport in Western Europe required two retention ponds to manage runoff from large pavement areas. One pond stored contaminated runoff for pumping to treatment, while the second managed cleaner water for natural filtering and controlled discharge. The system had to perform over weathered clay and withstand fuel, de-icing fluids, operational vibration and demanding maintenance conditions.
Neoloy® Tough-Cells were used to reinforce a 200 mm dry-lean concrete lining on the pond bases and slopes. The cellular form held the concrete uniformly without conventional formwork and provided a flexible, non-corroding reinforcement system for the containment surfaces.
Project value delivered
View Airport Stormwater Retention Pond Case Study
Stormwater systems must manage water safely while protecting the surrounding soil, infrastructure, receiving waters and landscape throughout the development life cycle.