State Interstates/ Highways GA has 5 major interstate highways that runs through the state. I-75(N-S-TN to FL), I-85(NE-SW-SC to AL), I-20(E-W-SC to AL), All run through ATL, I-16(E-W-Macon to Savannah), and I-95(Coast from Savannah to Florida. Interstates make travel save time and money. Drive higher speeds, multiple lanes to pass slow drives, and No Red Lights or Stop signs to slow you down. Purpose of the interstates within the state take PPI and Product City to City, Through the state take PPL- other people thru GA, and From the state Transport people and product made NGA into other states.