This document is the TN 3.02 AdvanEdge Hydraulic Performance. It describes the inlet flow and core flow capacity with tables and figures provided.

This technical note provides the inlet flow and core flow capacities of AdvanEDGE to be used in determining sizing and spacing of a subsurface drainage system.

The inlet flow capacity of an AdvanEDGE panel is dependent upon perforation sizing and whether or not a geotextile is wrapped around the panel. Typically, the inlet flow of the panel is greater than the subbase material and is not a limiting factor in the design. The inlet flow capacity for AdvanEDGE, with and without a geotextile is shown in a table under product and inlet flow capacity, GPM/Sq. Ft.

The Core Flow Capacity for ASTM D4716, Standard Test Method for Determining the (In-Plane) Flow Rate per Unit Width and Hydraulic Transmissivity for a Geosynthetic Using a Constant Head, was the original procedure for determining the flow capacity of AdvanEDGE. However, this procedure only addresses the panel installed in a horizontal plane, while the majority of applications install AdvanEDGE vertically.

The Kentucky Transportation Center devised a flow test that determines flow rates in the vertical plane. The procedure has been accepted as an appropriate measurement of flow capacity and is included in ASTM D7001 Geocomposite for Pavement Edge Drains and Other Flow Applications.

A figure for AdvanEDGE core flow capacity horizontal plane installation is provided with flow capacity, GPM and slope. A 2nd table, AdvanEDGE Core flow capacity, vertical plane installation with loading, psi and flowrate, GPM is also provided.