EXIT the fort, and then follow signs to I-77 NORTH.
Take I-77 NORTH to I-20 WEST to AUGUSTA at EXIT 16.
Take I-20 WEST across to I-75 NORTH to CHATTANOOGA via I-285 NORTH BYPASS to bypass ATLANTA (EXIT 67B off I-20 in GEORGIA to get onto I-285 NORTH BYPASS ; EXIT 20 off I-285 to get onto I-75, follow signs to I-75 NORTH to CHATTANOOGA).