Modular Stormwater Management

High-capacity underground stormwater storage designed to make efficient use of limited space while supporting the structural demands of roads, parking lots and public spaces.

Managing Stormwater in Constrained Sites

Urban development increases runoff while leaving less space available for stormwater infrastructure. Rainfall, snowmelt and increasingly intense storm events can place additional pressure on existing drainage networks, particularly within dense and highly paved environments.

Modular underground storage provides a flexible way to create the required detention or retention capacity below ground while maintaining valuable space at the surface.

Reduce pressure on drainage infrastructure

Maximize storage within limited space

Accommodate utilities and site constraints

Support heavily loaded paved areas

Design Considerations

Effective underground stormwater storage starts with understanding the hydraulic requirements, available space and structural demands of the site. These factors determine how the system is configured and integrated with the wider drainage strategy.

Site Constraints

Adapt storage layouts around utilities, restricted excavation depths and complex below-ground infrastructure.
Delivery Example

Storage Capacity

Provide the volume required to meet project-specific detention and retention requirements.
Delivery Example

Flow & Discharge

Coordinate inflow, storage and controlled discharge as part of the wider stormwater strategy.
Delivery Example

Structural Performance

Support pedestrian and vehicle loads while protecting the stormwater storage volume below.
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Integrated Stormwater Systems

Modular systems allow stormwater storage to be configured around the requirements of the site, helping project teams balance hydraulic performance, available space and structural demands.

Modular Stormwater Storage

Create high-capacity underground detention or retention within constrained urban environments.

Integrated Tree Pit Systems

Combine stormwater management with soil volume and healthy urban trees where the project requires both.

Stormwater Management in Practice

Explore projects showing how GreenBlue Urban systems have been incorporated into complex sites to manage water, work around existing infrastructure and support high-quality public spaces.

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Your Project

Planning underground stormwater storage for a street, parking area, development or public space? Our Canadian team can support system configuration, storage requirements, technical specification and coordination with the wider drainage design.

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