Geotextile fabrics are a proven solution for a wide variety of civil and environmental engineering challenges. Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geotextile fabrics come in three basic forms: woven, needle punched, or heat bonded. The addition of a geotextile fabric to the design of a roadway can provide savings from several factors, including reduction of both excavation and base materials. Geotextile fabrics also enable construction to progress under difficult field conditions that would otherwise make work impossible.