Live Chat I-71 Community Nearby Traffic US 421 (KY) 2024-05-04 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 421 (KY) Pendleton, KY 5.68 Smithfield, KY 9.54 New Castle, KY 10.21 Interstate highway exits close to US 421 (KY) Exit 28, i71 3.89 Exit 34, i71 5.19 Exit 22, i71 12.97 Interstate highways close to US 421 (KY) i71 map 3.89 i64 map 31.66 i65 map 43.33 State roads close to US 421 (KY) KY 1606 map 0.74 KY 157 map 0.92 KY 3175 map 1.46