Live Chat I-80 Community Nearby Traffic Port Costa Traffic 2024-05-28 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Port Costa Crockett, CA 3.12 Benicia, CA 4.39 Vallejo, CA 6.46 Interstate highway exits close to Port Costa Exit 3a, i780ca 2.88 Exit 3b, i780ca 2.88 Exit 4, i780ca 3.26 Interstate highways close to Port Costa i780ca map 2.88 i80 map 3.42 i680ca map 5.20 State roads close to Port Costa CA 4 map 3.03 CA 29 map 5.02 37 WESTBOUND map 11.17