Oldcastle StormCapture
Oldcastle StormCapture
Oldcastle StormCapture provides reliable storage and flow control to meet stormwater regulations.
Large-Scale Underground Stormwater Detention System
The Oldcastle StormCapture® system is designed for large-scale underground detention and stormwater management. It gives engineers and developers the flexibility to address multiple objectives, from controlling peak flows to supporting Low Impact Development and water reuse initiatives.
Nexterra's StormCapture is a precast modular stormwater system that stores large volumes underground while keeping construction simple and land use efficient. With customizable internal heights, integrated treatment options, and traffic loading with minimal cover, StormCapture helps projects meet detention, recharge, and water quality goals without giving up valuable surface space.
Versatile Applications
Engineered for performance and sustainability, StormCapture serves multiple roles in modern stormwater management. Each system adapts to site-specific goals, offering flexible solutions for everything from peak flow control to water reuse initiatives.
Applications include:
- Provides detention systems that manage peak flows and safeguard downstream infrastructure.
- Functions as a treatment solution that enhances water quality before discharge.
- Supports groundwater recharge as part of sustainable site design.
- Configures easily for stormwater harvesting and reuse applications.
By capturing and storing runoff underground, the system removes the need for surface ponds and frees valuable space for parking, buildings, landscaping, or public areas. This approach allows project teams to achieve regulatory compliance while keeping land use efficient and visually open.
Storage and Structural Essentials
Built for strength and efficiency, StormCapture packs impressive storage capacity into a compact underground footprint. Each precast module is engineered for easy transport, quick staging, and straightforward installation. Designers can select internal heights that align perfectly with hydraulic and grading requirements, creating systems that strike the ideal balance between performance, constructability, and long-term reliability.
Key design advantages include:
- Large water storage volume that reduces overall footprint and expands design flexibility.
- Custom internal heights ranging from 2 to 14 feet to meet specific site conditions.
- Integrated treatment train options that accommodate pretreatment, post treatment, or both.
- Modules typically backfilled with on site materials to simplify construction and reduce costs.
- Modular precast concrete units measuring 8 by 16 feet externally and 7 by 15 feet internally, with adjustable heights for site customization.
Together, these features allow StormCapture to perform across varied topography, withstand heavy structural loads, and achieve precise hydraulic objectives with minimal site disruption.
Build and Installation Advantages
Every element of StormCapture is engineered for speed, simplicity, and seamless coordination in the field. Crews spend less time at grade and move through fewer construction steps, which keeps projects on schedule and reduces overall labor demands. Once backfilled, the surface is ready for immediate use, allowing owners to reopen parking areas or job sites without costly downtime.
Key installation benefits include:
- Rapid placement and minimal handling that accelerate installation.
- Traffic load support with as little as six inches of cover.
- Complete elimination of surface detention areas to free valuable space.
- Expert design support tailored to specific site requirements.
This straightforward installation process helps lower total project costs while maximizing usable land and maintaining consistent project momentum.
Customizable Design Tool
Project planning becomes more efficient with a platform built to streamline every step of the design process. Engineers gain the flexibility to customize layouts and integrate stormwater solutions directly into their workflow. The StormCapture Design Tool makes planning simple by allowing you to:
- Build a system tailored to exact project requirements.
- Upload project plans directly into the platform.
- Integrate customized storm capture designs into your engineering documents.
- Generate project-specific drawings within minutes.
Nexterra's design workflow further aligns the system layout with hydraulic needs, structural requirements, and site constraints, producing clear deliverables that shorten timelines and improve coordination across teams.
Project Suitability
Versatility defines this system, making it a strong fit for both new developments and complex redevelopments. By placing storage below ground, sites gain room for parking, landscaping, and public use while still meeting regulatory and environmental requirements. The approach improves compliance, optimizes land value, and supports sustainable water management practices.
Applications include:
- Underground detention that manages peak flows and protects downstream systems.
- Integrated water quality treatment when paired with pretreatment and post treatment components.
- Groundwater recharge systems that advance Low Impact Development objectives.
- Stormwater harvesting for non potable reuse as part of a complete water management strategy.
Each configuration gives project teams a reliable path to achieve performance targets without compromising valuable surface space.
Upstream and Downstream Integration
Seamless integration is essential to any effective stormwater system. This design connects efficiently with upstream pretreatment measures and downstream discharge or reuse components, creating a balanced network that manages runoff, protects capacity, and preserves long term reliability.
Typical upstream and downstream elements include:
- Pretreatment structures: such as hydrodynamic separators or sediment filters that remove debris and sediment before water enters the chambers.
- Flow control devices: that regulate inflow rates and prevent surges during peak storm events.
- Downstream connections: directing treated or stored water to infiltration zones, controlled discharge outlets, or reuse systems for irrigation or cooling.
- Overflow bypasses: that safely route excess flow during extreme rainfall.
Together, these elements form a coordinated system that enhances performance, safeguards downstream assets, and strengthens overall site resilience across a variety of conditions.
Additional Resources
Design guidance, customized drawings, specification language, and installation recommendations are available from Nexterra to support engineering, submittals, and construction planning.
Support Material
Nexterra Environmental partners with leading manufacturers to deliver the industry’s most trusted solutions.