Before placement of the geotextile, it had impassable, muddy conditions with ruts up to one foot deep. Today, the conditions are as good as just after the fabric was placed. In 1991, the Town of Lyndeborough paved Wilton Road with a geotextile separating the pavement and the base. There hasn't been a crack since. Another benefit of geotextiles is the manner in which they drain water.
Drainage is crucial to the performance of a road.
Water can weaken subgrade soils and decrease their allowable bearing capacity. Geotextiles allow water to filter through, preventing the buildup of moisture. Geotextiles play a major role in the reinforcement of the base course. Non-woven geotextiles have excellent frictional characteristics, locking the aggregates in place. This locking action increases the strength of the base course.