SR 326 begins at an
intersection with
US 441 Bus./
SR 98 (Broad Street) in downtown
Commerce, in
Jackson County. At this point, it is known as
Central Avenue, which continues past the western terminus of the state highway. SR 326 travels northeast for one block and intersects State Street. It turns right onto State Street and passes the Commerce Civic Center, before curving back to the northeast. The highway intersects
US 441/
SR 15 (Veterans Memorial Parkway) shortly before leaving the
city limits of Commerce. At this intersection, the highway becomes known as
Old Carnesville Road. During a brief eastward bend, it enters
Banks County. Then, it curves again to the northeast. At an intersection with the southeastern terminus of Brown Bridge Road and the southwestern terminus of Duncan Road, SR 326 turns to the right, continuing to follow Old Carnesville Road. It curves to the east-northeast and then to the north-northeast and intersects the southeastern terminus of the aforementioned Duncan Road just before beginning to travel along the Banks–
Franklin county line. At the county line, the "Old Carnesville Road" name ends. It curves to the north-northwest and crosses over the
Hudson River, where the highway enters Franklin County proper. The highway makes a very gradual curve to the northeast and curve to the north, where it intersects the eastern terminus of Bold Springs Road (which used to be part of
SR 164) and the southern terminus of Bold Springs Church Road. At this intersection, SR 326 turns right onto
Bold Springs Road for just over . There, it diverges from that road and curve to the northeast and crosses over
Carlan and
Nails Creeks. After bending to the east-northeast, it intersects
SR 51 (Sandy Cross Road). Just over later, it meets its eastern terminus, an intersection with
SR 106 (Athens Road) south-southwest of
Carnesville. ==History==