Live Chat I-90 Community Nearby Traffic I 90 exit 51 2024-05-22 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I-90 Exit 51 Piedmont, SD 7.05 Rapid City, SD 9.99 Bethlehem, SD 12.89 Interstate highway exits close to I-90 Exit 51 Exit 51, i90 2.10 Exit 48, i90 3.05 Exit 46, i90 6.68 Interstate highways close to I-90 Exit 51 i90 map 2.10 i25 map 225.97 i94 map 302.58 State roads close to I-90 Exit 51 US 14 SD map 2.50 US 16 SD map 11.24 US 385 SD map 16.43