It’s a known but often overlooked fact: water retention within a pavement structure is a primary cause of pavement deformation, rutting and breakdown. Excess water weakens aggregate base, sub base and subgrade soil layers, reducing their structural capacity. Further, many pavement designs do not adequately address drainage issues. Without adequate underlying drainage, a pavement section is likely to degrade and fail prematurely.
Pavement engineers, transportation officials, owners and contractors now have a better way to address these issues: the RoaDrain™ Roadway Drainage System, available from Tensar International. The RoaDrain System is an economical alternative to open-graded drainage aggregate applications, including granular blanket drains, to quickly remove subsurface water.