Underground Modular Stormwater Attenuation & Detention Systems
Underground modular stormwater attenuation & detention systems provide a highly efficient approach to managing peak rainwater flows, reducing flood risks, and stabilizing drainage infrastructure. By using underground modular structures YD StormBreaker®, these systems create flexible storage volumes that temporarily hold runoff during intense storms (attenuation) and release it in a controlled manner afterward (detention). Compared with traditional concrete tanks, modular systems offer faster installation, lighter materials, and higher spatial efficiency, making them ideal for residential, commercial, industrial, and municipal developments. They align with international sustainability frameworks such as SUDS, LID, and LEED, supporting long-term urban water resilience.
Advanced High-Efficiency Modular Underground Attenuation & Detention Systems | Peak Flow Control & Reduce Flood Risk
Our Underground Modular Stormwater Attenuation & Detention product series provides a complete set of engineered solutions designed for urban drainage, flood mitigation, and sustainable water management. Each series is built on a modular underground structure, allowing for flexible configuration, high load-bearing performance, and rapid installation across residential, commercial, industrial, and municipal environments.
This product series includes modular attenuation crates, detention tank modules, heavy-duty load-rated structures, geocell support components, pre-treatment units, and optional infiltration or reuse accessories. The systems can be combined or scaled to meet project-specific hydrological requirements, enabling peak-flow reduction, controlled discharge, and long-term operational stability.
With compliance toward SUDS, LID, LEED, and international stormwater engineering standards, our modular underground systems support engineers, contractors, and developers in building resilient infrastructure with reduced construction cost and minimized environmental impact. Customized technical design, hydraulic calculations, and project-based configuration services are also available to ensure optimal performance in diverse site conditions.
What Is a Modular Stormwater Attenuation System?
Modular attenuation system is an underground structure that temporarily stores stormwater to reduce peak flow entering drainage networks. Modular tanks allow flexible configuration, rapid installation, and high storage capacity while remaining hidden underground.
What Is an Underground Detention System?
Detention system stores stormwater underground and releases it through a controlled outflow device. Unlike infiltration systems, detention tanks focus on delayed discharge, helping municipalities regulate downstream flow.
Underground Modular System Components
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Modular stormwater crates
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Geotextile or geomembrane wrapping
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Flow-control chamber (detention)
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Access & inspection ports
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Underground inlet & overflow units
Attenuation vs Detention — How They Work in Underground Systems
| Feature | Attenuation | Detention |
|---|---|---|
| Structure Type | Underground modular tank YD StormBreaker® | Underground modular tank YD StormBreaker® |
| Main Purpose | Reduce peak flow | Delay discharge |
| Outflow | Optional | Required |
| Installation | Fully underground | Fully underground |
Advantage Of Underground Modular Stormwater Attenuation & Detention Systems
Advantage 01 — High Load-Bearing Strength & Long-Term Stability
StormBreaker®-based attenuation & detention systems deliver exceptional underground structural performance, supported by high-strength polypropylene, reinforced rib design, and comprehensive creep tests and long-term compression evaluations. The modules maintain stability under continuous vertical soil pressure and heavy traffic loads—making them suitable for roads, parking areas, and municipal engineering. With certified 32T–100T load classes, the system ensures long-term resistance to deformation, settlement, and structural fatigue.
Advantage 02 — Efficient Attenuation & Controlled Detention Performance
The system provides highly effective stormwater attenuation by rapidly capturing peak runoff and buffering extreme rainfall events. Integrated flow-control outlets enable precise detention and controlled discharge, reducing stress on downstream drainage networks. The modular underground design optimizes hydraulic efficiency, minimizes flood risks, and supports compliance with SUDS, LID, LEED, and other modern stormwater management standards.
Advantage 03 — Modular, Flexible & Fast Installation
StormBreaker® modules are lightweight, stackable, and easy to transport, significantly reducing logistics costs and on-site handling time. The modular underground structure allows engineers to configure systems of any size or shape, adapting to irregular plots or depth limitations. Quick assembly and simplified installation eliminate the need for heavy equipment, enabling faster project delivery and lower labor requirements compared with concrete tanks.
Advantage 04 — Cost-Efficient & Quality-Assured System
Compared with traditional concrete or gravel chambers, StormBreaker® attenuation & detention systems offer superior cost-efficiency through reduced transportation, faster installation, and minimal maintenance requirements. Manufactured under strict quality control with durable, recyclable materials, the system maintains long service life and stable hydraulic performance. Comprehensive testing, material certification, and traceability ensure long-term reliability and compliance with international engineering standards.
Request a Tailored Attenuation & Detention System Design
Every project requires a unique stormwater strategy. Tell us your site conditions and project requirements—we will design the most efficient underground attenuation & detention system with modular StormBreaker® units, complete with drawings, BOQ, loading analysis, and cost-effective technical solutions.
Get your project-specific system design now.
Applications Of Underground Modular Stormwater Attenuation & Detention Systems
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Underground municipal drainage upgrades
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Urban redevelopment projects
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Commercial parking lots
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Industrial facilities
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Residential communities
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Roadway and transportation corridors
Technical Features of Yude’s Modular Underground Tanks
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High-strength PP/HDPE modular structure
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Compression-resistant underground performance
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Multi-direction flow design
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Compatible with geotextile, geomembrane, and inspection pipes
FAQ
FAQ 1: What is an underground modular attenuation system?
An underground modular attenuation system is a buried storage structure that reduces peak stormwater flow by temporarily holding runoff in modular crates before gradual release or infiltration.
FAQ 2: How does a detention system differ from an attenuation system?
Detention systems include controlled outflow devices for delayed discharge, while attenuation systems focus on reducing peak flow and may or may not discharge water downstream.
FAQ 3: Where can underground detention tanks be installed?
They are suitable for roads, parking lots, commercial sites, industrial developments, and municipal drainage upgrades due to their high load capacity and underground footprint.
FAQ 4: Are modular attenuation tanks suitable for heavy traffic loads?
Yes. Yude’s modular underground tanks support 32T, 45T, 60T, 80T, and 100T load classes, making them suitable for applications beneath roads and industrial pavements.
FAQ 5: What materials are used for modular stormwater tanks?
Tanks are made from high-strength PP/HDPE with excellent compressive performance, durability, and long-term resistance to underground deformation.
FAQ 6: Do you provide hydraulic calculation and system sizing?
Yes. We offer full engineering services including hydraulic calculation, peak-flow analysis, CAD drawings, and BOQ for attenuation and detention system design.
