Live Chat I-5 Community Nearby Traffic I 5 CA exit 721, Southbound 2024-04-23 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I-5 CA Exit 721, Southbound Dunsmuir, CA 13.14 Lakehead, CA 20.42 Mount Shasta, CA 23.24 Interstate highway exits close to I-5 CA Exit 721, Southbound Exit 721, i5 0.18 Exit 723, i5 1.60 Exit 720, i5 1.97 Interstate highways close to I-5 CA Exit 721, Southbound i5 map 0.18 i80 map 245.79 i505ca map 253.68 State roads close to I-5 CA Exit 721, Southbound CA 89 map 19.36 CA CR A10 map 22.38 CA 3 map 28.27