Chat Report Accident Traffic Contra Costa Smog 2025-02-27 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Contra Costa Smog Lafayette, CA 4.45 mi Alamo, CA 4.83 mi Moraga, CA 6.46 mi Interstate highway exits close to Contra Costa Smog Exit 46a, i680ca 1.57 mi Exit 45, i680ca 1.93 mi Exit 46b, i680ca 2.83 mi Interstate highways close to Contra Costa Smog i680ca map 1.57 mi i580ca map 14.13 mi i880ca map 18.03 mi State roads close to Contra Costa Smog CA 24 map 2.13 mi 242 NORTHBOUND map 8.68 mi 242 SOUTHBOUND map 8.76 mi