Our Frisco office engineers, civil designers, and interns recently took a field trip to observe the installation of a commercial subsurface storm water management system. The project, located in Frisco, will be large enough to detain 26,866 cubic feet of storm water runoff (that’s more than 200,000 gallons of water). A typical configuration consists of chambers (manufactured by StormTech in this application) with open bottoms allowing for the retention of storm water that infiltrates into the underlying soils and for detention to mitigate peak flows using an outflow structure. This particular application, with a footprint of 11,725 square feet, will be below an expanded parking lot and is rated for the subsequent live and dead loads of paving and vehicle traffic. Peloton, while not involved professionally on this project, takes advantage of opportunities to educate our staff, especially our younger PEs/EITs and engineering interns.