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N-12® Pipe Retention / Detention Systems

The N-12 pipe underground retention/ detention system utilizes subsurface pipe that detains storm water and releases it either through a controlled outlet or holds it until the surrounding soil can accept it.

ADS Technical Note 2.120 Storm Water Detention/Retention System Design

ADS has created an interactive storm water retention/detention outlining preferred engineering practices. You may access this tool online or contact us to receive a copy on CD-Rom.