interstate 85 passes through from montgomery on the southwest and from greenville on the northeast. i-75 merges with i-85 to form the downtown connector from the brookwood interchange, just north of midtown atlanta, to just south of the lakewood freeway in south atlanta. interstate 185 is a spur which merges with i‑85 in lagrange and stretches southward to columbus. interstate 985 is a spur which merges with i‑85 in suwanee and serves the northern suburbs of gwinnett and hall counties. it terminates just northeast of gainesville.