Product & Technical Specifications

The STORMCROSS Innovation

STORMCROSS was developed by reimagining the intersection of conventional double-wall vault modules, replacing redundant interior walls with a single, shared cross-shaped structural assembly.

Storm Cross underground stormwater system
Storm Cross module installation detail
System Overview

Full Slab Bottom. Infiltration Cross Slab.

The Storm Cross system replaces multiple single-purpose stormwater structures with a single modular unit. Its patented cross-flow chamber design enables structural retention, detention, and infiltration — reducing material costs, excavation volume, and installation time.

Storm Cross system plan view
Storm Cross module detail
Technical Specifications

Engineered to Perform

ParameterValue
Load RatingHS-25 (AASHTO)
Primary MaterialPrecast Reinforced Concrete
System FunctionRetention / Detention / Infiltration
ConfigurationModular — scalable to project volume
Installation DepthVaries by project; standard cover 1–3 ft
Concrete ReductionUp to 50% vs. conventional systems
Patent StatusPatented — licensing available
Applicable StandardsAASHTO HS-25, local stormwater regulations
Dimensions & Capacity

Modular by Design

Storm Cross units are precast and delivered ready to install. Modules are configured to meet project-specific storage volume requirements. Contact our engineering team for site-specific sizing and layout drawings.

Custom sizing and layout drawings available upon request.

Storm Cross SC-96 dimensional drawing — plan view and cross-section with key measurements
SC-96 Standard ModuleNot to Scale
Materials & Construction

Built for the Long Term

Precast Reinforced Concrete

High-strength concrete mix designed for underground loading conditions and long service life.

HS-25 Load Rating

Engineered to withstand AASHTO HS-25 traffic loading — suitable for roadway and parking applications.

Modular Assembly

Units are factory-cast and field-assembled, reducing on-site labor and quality variability.

Durable Inlet/Outlet Connections

Standard pipe connections compatible with common stormwater conveyance systems.

Installation Overview

Straightforward. Efficient. Proven.

01

Site Preparation

Excavate to design depth. Prepare aggregate base per project specifications.

02

Unit Placement

Set precast Storm Cross modules using standard crane equipment. No special tooling required.

03

Pipe Connections

Connect inlet and outlet piping per the approved project drawings.

04

Backfill & Compaction

Backfill per structural requirements. System is ready for surface restoration and paving.

Ready to Specify Storm Cross?

Request technical drawings, project-specific sizing, or licensing information from our engineering team.