Why Detention?
Underground stormwater detention systems are a structural Best Management Practice (BMP) used to control the flow of stormwater. Detention systems work as an integral part of the storm sewer system to provide a temporary storage area for excess stormwater. Runoff is stored and discharged over time whenever runoff inflow exceeds the allowable discharge rate. The systems are typically installed beneath parking lots, streets and parks to maximize property usage and lower development costs.
Underground Detention Systems:
- Custom designed to meet local detention requirements
- Maximize property usage
- Lower development cost
- Provide a safe, nuisance-free environment
- Offer easy access for inspection and maintenance
Our Detention Products:
Corrugated Metal Pipe Systems - Cost-effective stormwater detention
Optimizer™ - Unique stormwater storage reduction technology
Structural Plate Systems - High volume stormwater storage
CON/STORM® - Innovative arch storage solution
CON/SPAN™ Systems - Cost-effective, modular underground storage
StormChamber ™ - High-capacity stormwater runoff chambers
A-2000™ PVC Pipe - High quality PVC stormwater storage
Why Retention?
On sites where soils drain well and the water table is low enough, a stormwater infiltration, or recharge, system may be the most economical means for managing runoff. Unlike detention systems, which typically discharge runoff from a single outlet pipe, infiltration systems allow accumulated runoff water to percolate into the subsoil. Water quality is usually improved through the soil’s natural filtering ability. Infiltration systems can also minimize water table reductions.
Underground Retention:
- Provides an efficient underground groundwater recharge system
- Often meets detention requirements on a site
- Provides a cost effective method for groundwater recharge, stream baseflow restoration and reduced peak surface water discharges
Our Retention Products:
Structural Plate Systems - High volume stormwater storage
CON/STORM® - Innovative arch storage solution
CON/SPAN™ Systems - Cost-effective, modular underground storage
StormChamber™ - High-capacity stormwater runoff chambers
Flow Control Solutions
Our Flow Control Products
CONTECH Stormwater Solutions offers several products that help to control flow on your site, including bypassing, flow regulation, and outlet control.
HydroBrake- precise flow control for storm sewers and combined sewer systems
StormGate™ - high-flow bypass structure
