New bank project cuts stormwater detention costs by $150,000

A Hydro-Brake® Optimum flow control enabled engineers to redesign a stormwater storage tank, cutting labor costs and saving more than $150,000 on the project.


Chevy Chase Bank of Bethesda, MD set out to open a new branch in Gaithersburg, a town within Montgomery County.


Water Quality Volume was required to detain stormwater on site, but the smallest allowable orifice - 2 in diameter – would over discharge, resulting in the need to increase the required storage volume by 42%.


Using the Hydro-Brake® Optimum (Reg-U-Flo®) flow control, Loiederman Soltesz Associates engineers redesigned the stormwater storage system.


The Hydro-Brake® Optimum flow control enabled engineers to limit the discharge rate with the entire storage system full, eliminating 100% of the excess storage volume that would have been required with a 2 inch orifice control. By reducing the volume of the tank and reducing associated construction labor costs, the Hydro-Brake® Optimum flow control saved over $150,000 on the project.

"The [Hydro-Brake® Optimum] really cut back on [installation] time and money."

- Matt Baxter, Humphrey Rich Construction