Soil Erosion The soils of the American Southwest are at best interesting to study and try to understand, you may have soil that is rock hard when dry, and soupy when wet.  In designing bridges, roads, and other structures it is imperative that soil analysis be performed for each, before digging and building.   The BorderTransportationSystem is over a thousand miles in length, and all sorts of various soil conditions, including soil erosion from wind and the Monsoon Rains is common.   CPESC® Certified Professional in Erosion & Sediment Control™ "The CPESC® certification represents many disciplines and specialties that work to produce site-specific plans and designs that comprehensively address current and potential erosion and sedimentation issues with practices and measures that are cost effective, understandable and that meet environmental and regulatory requirements. CPESC registrants meet educational and practical experience standards, subscribe to the code of ethics, pass a rigorous qualifying exam, and maintain expertise through a continuing professional development program. To learn more about the CPESC program requirements, please download the Scope of Practice below." Nilex Corporation "Nilex is a leader in the geosynthetics industry providing innovative solutions to support the unique challenges of civil, resource and environmental construction projects. Since 1977, Nilex's engineered, technically advanced geosynthetic materials have provided customers with smart choices and proven alternatives to conventional construction practices for less money. " "Our smart, environmentally conscious solutions are used in road building, Mechanically Stabilized Earth (MSE) solutions for grade changes, erosion and sediment control, water management and containment."   Index of ... CPESC - Full Article - Click here  The University of Texas at Austin {Glossary that covers Texas land and its history.} Nilex Full Article - Click here