Live Chat I-90 Community Nearby Traffic US 81 SD 2024-06-03 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 81 SD Menno, SD 14.64 Marion, SD 17.48 Olivet, SD 19.88 Interstate highway exits close to US 81 SD Exit 357, i90 36.71 Exit 364, i90 37.40 Exit 353, i90 37.90 Interstate highways close to US 81 SD i90 map 36.71 i29 map 54.54 i229sd map 57.45 State roads close to US 81 SD US 81 SD map 4.10 US 18 SD map 10.51 US 81 NE map 52.94