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.

[4][5] 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.

After a slight western jog, I-520 continues to the south-southeast and meets Wrightsboro Road, which leads to Augusta Mall.

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).

The Interstate gradually curves to the northeast and has an interchange with Laney Walker Boulevard and SR 28 (Sand Bar Ferry Road).

[21][22] In January 2015, 4.7 miles (7.6 km) of I-520 were expanded to three lanes in each direction after work started in February 2012 for a cost of $33 million.

[23] In accordance with MUTCD guidelines for auxiliary Interstates, exit numbering is continuous across the state line and does not reset.