Underground Detention Systems
StormTank Module 25 Series
Overview
The StormTank Module 25 Series is an American-made and manufactured underground detention module which provides a highly engineered underground stormwater management solution designed to maximize storage capacity while minimizing site footprint. The modular system allows developers, engineers, and contractors to manage stormwater efficiently while preserving valuable surface space for parking, landscaping, and development.
Proven Structural Performance
The StormTank Module 25 Series has been independently tested by a third-party university laboratory and verified to exceed HS-25 load requirements. This allows the system to support heavy loads up to and including fully loaded, 18 wheel semi-tractor trailers, making it suitable beneath parking lots, emergency vehicle lanes, roadways, parking garages, commercial developments, and industrial sites.
Flexible Design for Complex Sites
The modular design allows the system to be configured to fit virtually any site condition or footprint. StormTank systems can be installed around utilities, foundations, property lines, landscaping areas, and other underground infrastructure. Since the system is assembled and installed by hand, the contractor does not have to tie up equipment for that part of the installation.
Detention or Retention Applications
StormTank systems can function as either detention or retention systems depending on project requirements. This allows the system to temporarily store stormwater and release it at a controlled rate or retain water for infiltration.
Advantages of StormTank Compared to Other Underground Systems
Smaller footprint
Lower installed cost
Reduced excavation requirements
Lower equipment and labor costs
Minimal bedding and rock requirements
Easy integration with underground infrastructure
Accessible maintenance and inspection
Durable engineered materials
Made and Manufactured in USA allows for quickest lead time (2-4 weeks from receipt of P.O.) and not subject to tariff increases
Advantages of Underground Detention & Retention
Usable surface space for parking and development
Invisible infrastructure
No open ponds
No mosquito breeding grounds
No drowning hazards
Maintains property value
Large capacity in tight spaces
Superior Storage Capacity
StormTank systems provide up to 97% void space, allowing significantly higher storage capacity within a smaller footprint.
Engineering & Design Support
TerraBuild Construction Supply provides layout assistance and engineering support including footprint geometry layouts, site plan overlays, installation notes, and CAD drawings. Typical turnaround time for drawings is approximately one week.
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New to underground detention systems?
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Standards-Aligned Options
Product options selected to support common project specifications and submittal needs.
DRAINAGE & SITE APPLICATIONS
Materials and components used across stormwater, drainage, sewer, and site utility projects.
PRODUCT CONFIGURATION OPTIONS
Multiple sizes and configurations available depending on performance needs and site requirements.
RESPONSIVE PROJECT SUPPORT
Help confirming availability, documentation, and the right fit for your application.
Straightforward Quote Requests
Share sizes/diameters, quantities, delivery location, and timeline to confirm pricing and availability.
Jobsite Delivery Coordination
Support for staging, pickup, or jobsite delivery planning to match your schedule.
TerraBuild Construction Supply provides dependable HDPE and PVC pipe systems, reinforced concrete pipe (RCP), precast structures, and underground detention systems for drainage, sewer, stormwater, and site development. Request pricing, confirm availability, and get support with documentation and delivery coordination.