Get On I-20: If You're Coming From The East Or West, Take The Nearest Exit For I-20. Exit Onto Us-78: Take Exit 44 For Us-78 Toward Lithonia/Austell. Merge Onto Us-78: Turn Right Onto Sweetwater St: Look For Sweetwater St And Turn Right. Continue On Sweetwater St, And 2662 Sweetwater St Will Be On Your Left.