In November 2006, the Central Texas Regional Mobility Authority (CTRMA) opened the first segment of the region's first toll road system. Both State Highway 130 and State Highway 45 toll roads run through portions of Austin and provide greatly increased mobility to the city. State Highway 130 prior to 2013 ran just south of Austin Bergstrom International Airport at US Highway 183 and ended at Interstate 35 north of Georgetown. It provides mobility and access to the easternmost part of Austin and Travis County, and allows residents in Williamson County easy access to the airport. This project, completed in October 2012, now ends at Interstate 10 just east of Seguin, about 30 miles east-northeast of San Antonio. The speed limit on the newly completed stretch is the highest in the United States at .