Highway 21 BP 2024-12-20 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Highway 21 BP Tunnel City, WI 6.57 mi Oakdale, WI 9.95 mi Camp Douglas, WI 15.50 miInterstate highway exits close to Highway 21 BP Exit 43, i90 1.60 mi Exit 147, i94 2.90 mi Exit 45, i90 3.43 miInterstate highways close to Highway 21 BP i90 map 1.60 mi i94 map 2.90 mi i39 map 76.66 miState roads close to Highway 21 BP US 12 WI map 1.33 mi WI 16 map 1.35 mi US 14 WI map 46.96 mi