Live Chat I-57 Community Nearby Traffic IL 121 2024-05-02 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to IL 121 Lerna, IL 6.35 Janesville, IL 7.98 Neoga, IL 10.67 Interstate highway exits close to IL 121 Exit 177, i57 8.98 Exit 184, i57 9.09 Exit 190b a, i57 14.75 Interstate highways close to IL 121 i57 map 8.98 i70 map 18.81 i72 map 78.57 State roads close to IL 121 IL 121 map 4.02 US 45 IL map 4.04 IL 16 map 14.44