StormArc offers a modern approach to stormwater detention, combining durability, flexibility, and efficiency in a precast concrete system. Designed to address the increasing challenges of land use and site constraints, StormArc provides high-capacity underground storage while minimizing installation time and site impact. Its modular design helps engineers and developers optimize available space without compromising performance or reliability.
High-Capacity Stormwater Detention in a Compact Footprint
StormArc offers the highest capacity modular precast stormwater detention system in the industry. With a footprint that’s 45–55% smaller than other solutions, it reduces excavation needs, labor hours, and material costs. It also requires 10% less stone and can be installed with standard equipment—no crane necessary.
Designed for versatility, StormArc can be configured in a variety of layouts including stepped beds and multi-level systems. This adaptability allows engineers to create efficient stormwater detention systems even on the most challenging sites.
Designed for Strength and Longevity
StormArc is manufactured from precast concrete and is HS-20 load-rated, making it strong enough to support vehicular loads with minimal soil cover. The system is third-party tested and designed to last for decades—unlike plastic alternatives that can degrade or fail under poor backfill or heavy loads.
The interlocking lips and solid end units provide a secure, watertight enclosure, reducing the risk of system failure and maintenance issues.
Why Choose StormArc?
- Smaller Footprint – Up to 55% less space required compared to traditional systems
- Faster Installation – No crane or complex equipment needed
- Flexible Designs – Easily configured for dog-leg layouts, stepped beds, or multiple chamber elevations
- Durable & Tested – Precast concrete, third-party tested, and HS-20 load-rated
- Optimized Storage – Maximize buildable land with high-capacity underground storage
Design Smarter Stormwater Detention Solutions with Mack
At Mack Industries, we partner with engineers, contractors, and municipalities to deliver smart, site-specific stormwater detention systems that perform. Whether you’re working in a dense urban area or a large development site, StormArc is designed to help you build smarter.
Ready to design a better system? Contact us today to get started.
