 In the future Webb County will be the United States terminus of the North American Supercorridor (NASCO), Interstate 69, and The Ports to Plains Trade Corridor.The Texas Department of Transportation Laredo District is preparing for future growth by turning Loop 20 into a freeway by building overpasses at major intersections and on / off ramps.The Webb County - City of Laredo Regional Mobility Authority has responsibility for a comprehensive transport system in the region.