Interstate 520 (I-520) is a auxiliary Interstate Highway that encircles most of Augusta, Georgia, and North Augusta, South Carolina, as a three-quarter beltway around the western, southern, and eastern parts of the main part of the Augusta metropolitan area. It begins at I-20 and State Route 232 (SR 232) in the northern part of Augusta, Georgia, and ends at I-20 in the northern part of North Augusta, South Carolina. I-520 is also known as Bobby Jones Expressway and the Deputy James D. Paugh Memorial Highway in Georgia and Palmetto Parkway in South Carolina. On the Georgia side, the road also carries the internal designation State Route 415 (SR 415). Route description |- |GA | |- |SC | |- |Total | |} The entire length of I-520 is part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility, and defense. Georgia I-520 begins at an interchange with I-20 (Carl Sanders Highway) and the internal designation of SR 402 in the northern part of Augusta. At this interchange, the roadway continues as SR 232, which takes on the Bobby Jones Expressway name. The Interstate travels to the south-southeast. After passing the Augusta Exchange shopping complex, east of Doctors Hospital, it has an interchange with Wheeler Road and Marks Church Road. After a slight western jog, I-520 continues to the south-southeast and meets Wrightsboro Road, which leads to Augusta Mall. About later is an interchange with U.S. Route 78 (US 78)/US 278/SR 10 (Gordon Highway). The freeway curves to the southeast, passing by Glenn Hills Middle School and Glenn Hills High School, to an interchange with US 1/SR 4 (Deans Bridge Road) and SR 540 (Fall Line Freeway). It passes by a campus of Augusta Technical College and the Richmond County Technical Career Magnet School, before curving to the east-southeast and meeting an interchange with Windsor Spring Road also with US 25/SR 121 (Peach Orchard Road) and SR 555/SR 565 (Savannah River Parkway). After a curve to the east is an interchange with SR 56 (Mike Padgett Highway), which is east of Southside Elementary School and northeast of East-Central Regional Hospital. I-520 curves to the east-northeast and has an interchange with Doug Barnard Parkway (former State Route 56 Spur (SR 56 Spur)). The Interstate gradually curves to the northeast and has an interchange with Laney Walker Boulevard and SR 28 (Sand Bar