sentences:  Just after the county line, it has an interchange with Scott Nixon Memorial Drive, and then immediately meets its eastern terminus at an interchange with Interstate 20 (I-20; Carl Sanders Highway).The roadway continues as the western end of I-520, which is also known as Bobby Jones Expressway.The only part of SR 232 that is included as part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility and defense, is the section east of the western intersection with SR 104.