Live Chat I-680 CA Community Nearby Traffic I 680 exit 42b a 2025-07-29 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I-680 Exit 42b A Walnut Creek, CA 4.83 Diablo, CA 5.49 Danville, CA 6.04 Interstate highway exits close to I-680 Exit 42b A Exit 42b a, i680ca 0.66 Exit 43, i680ca 1.21 Exit 41, i680ca 2.81 Interstate highways close to I-680 Exit 42b A i680ca map 0.66 i580ca map 14.92 i880ca map 19.73 State roads close to I-680 Exit 42b A CA 24 map 6.68 242 NORTHBOUND map 11.36 242 SOUTHBOUND map 11.45
