Interstate 780 | ||||
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Route information | ||||
Defined by | ||||
Maintained by Caltrans | ||||
Length: | 6.759 mi (10.878 km) | |||
History: | State highway in 1935; Interstate in 1955 (As I-680); renumbered I-780 in 1973-76 | |||
Major junctions | ||||
West end: | Curtola Pkwy & Lemon St in Vallejo | |||
I-80 in Vallejo | ||||
East end: | I-680 in Benicia | |||
Location | ||||
Counties: | Solano | |||
Highway system | ||||
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State Route 141 | |
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Location: | Vallejo |
Existed: | 1964–1988 |
Interstate 780 (I-780) is an Interstate Highway in the San Francisco Bay Area of the U.S. state of California. It serves to connect Interstate 80 in Vallejo with Interstate 680 just north of the Benicia-Martinez Bridge in Benicia. Originally, this segment was part of I-680 before that Interstate was extended and rerouted to Fairfield. The city-maintained Curtola Parkway continues west from I-80 to State Route 29 in Vallejo.
The Interstate 780 state-maintained freeway begins at Lemon Street and Curtola Parkway, quickly crossing underneath I-80 at a cloverleaf interchange. The freeway passes through parts of unincorporated Solano County, then heads southeast along the Benicia State Recreation Area (a marsh). It then bypasses downtown Benicia through the hills to the north. I-780 ends at I-680 at the north end of the Benicia-Martinez Bridge, with I-680 heading south through the East Bay to San Jose.