APM: 0 Location: I-680 and I-780, Benicia Reassurance shield after the I-780 junction as we cross the Carquinez Strait. This bridge is tolled northbound. 4.5 miles to SR 4. APM: 25 Location: I-680 and I-780, Martinez Welcome to Martinez and Contra Costa County! APM: 24 Location: I-680 and Marina Vista Ave, Martinez After we cross the bridge, we’re … Continue reading Interstate 680, I-780 to SR 4