Manage - Iowa Stormwater Education Partnership


What you can't capture and infiltrate.

In most cases, infiltration based practices are sized to capture and infiltrate the 1.25" rain or less.  However, sometimes it rains more than that in a 24 hour period.  That means these infiltration practces should have a backup plan to safely release the excess rainwater that flows through the BMP.

This entails a number of BMPs you can ensure are included in your infiltration practice design:

Bioretention cell with perforated pipe under-drain

Emergency overflow / Outlet Structures

Bioswale:  Design & Specification

© 2019 Iowa Stormwater Education Partnership. All Rights Reserved.