Live Chat I-40 Community Nearby Traffic US 321 TN 2024-05-11 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 321 TN Sevierville, TN 4.08 Gatlinburg, TN 10.35 Seymour, TN 17.99 Interstate highway exits close to US 321 TN Exit 407, i40 21.71 Exit 412, i40 24.14 Exit 402, i40 26.00 Interstate highways close to US 321 TN i40 map 21.71 i81 map 34.42 i640tn map 36.57 State roads close to US 321 TN US 321 TN map 0.08 TN 449 map 1.09 US 441 TN map 2.09