What is the typical depth of an infiltration trench?

The typical depth of an infiltration trench can range from 2 to 10 feet. This depth allows for effective stormwater management by enabling adequate infiltration of surface runoff into the surrounding soil while also accommodating different soil types and site conditions. Infiltration trenches are designed to intercept and manage excess water, so the depth is crucial for ensuring that they can capture sufficient water without causing issues such as surface flooding or groundwater contamination.

Trenches deeper than 10 feet may complicate construction and may not provide additional benefits in terms of infiltration rates, while shallower trenches may not effectively handle peak runoff events. The range of 2 to 10 feet strikes a balance between ensuring effective stormwater management and maintaining practicality in construction and maintenance.