RoaDrain™ Roadway Drainage System

500% Increased Flow Rate
50% Water Removal within 2 Hours
  • Synthetic subsurface drainage layer
  • Superior separation and filtration
  • Resists deformation
  • Lower material costs
  • Faster installation

The RoaDrain™ roadway drainage system provides a synthetic subsurface drainage layer (SSDL) that outperforms traditional open-graded base layers (OGBL) and exceeds standards set for typical stone drainage layers.

The RoaDrain system increases the flow rate by 500%, quickly removing water and decreasing overall drainage time. It provides “excellent” drainage as defined by AASHTO (50% water removal from a pavement structure within two hours), which significantly extends pavement life and reduces maintenance costs. With RoaDrain solutions, you can also save on material costs with a reduction in processed structural fill quantities and accelerate your construction schedule with a faster installation time.

The RoaDrain system’s unique drainage properties and performance stem from its construction. It features durable, nonwoven geotextile fibers laminated to the top and bottom of a tri-planar geonet core. The geonet core provides a void-maintaining structure with high compressive strength that resists deformation. While the geotextile material offers superior separation and filtration of fines and other materials.


The RoaDrain system is available in two SKUs: RD5 and RD7.

For Excessive Moisture - Anywhere

The RoaDrain Drainage System can be specified for any project exposed to excessive moisture. This includes, but is not limited to, highways, airports, railroad trackbeds, embankments, and detention ponds.

Easily Installed in a Variety of Places

The RoaDrain Drainage System can be easily and quickly installed in a variety of different locations. It can be used directly beneath a portland cement concrete (PCC) pavement surface to remove water rapidly, as well as directly beneath PCC joints and joint repairs. RoaDrain solutions can also be used beneath the aggregate base course to shorten the drainage path or above the subgrade to act as a capillary break over frost-susceptible soils, helping to eliminate frost-heave.