Interstate 780
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| Interstate 780 Auxiliary route of the Interstate Highway System |
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| (CS&HC Section 623) | |||||||||||||
| Length: | 6.52 mi[1] (10.49 km) | ||||||||||||
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| Formed: | September 15, 1955 by FHWA[2] 1976 by Caltrans (from I-680)[3] |
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| West end: |  I-80 in Vallejo |
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| East end: |  I-680 in Benicia |
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Interstate 780 (abbreviated I-780) is a 6.5 mile-long Interstate connector in northern California between Interstate 80 in Vallejo and Interstate 680 at the approach to the Benicia-Martinez Bridge in Benicia. Both cities are in the northeastern San Francisco Bay Area.
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[edit] History
Prior to 1976, the highway was the northernmost segment of I-680. When 680 signage was shifted to the State Route 21 corridor between Benicia and Cordelia in 1976, the Benicia-Vallejo route was rechristened Interstate 780.
[edit] Control Cities
Eastbound
Westbound
[edit] Exit list
| County | Location | Mile[1] | #[4] | Destinations | Notes |
|---|---|---|---|---|---|
| Solano | Vallejo | Curtola Parkway | Freeway begins and ends | ||
| 0.00 | 1A | I-80 west - San Francisco |
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| 1B | I-80 east - Sacramento |
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| 0.13 | 1C | Laurel Street | Westbound exit and entrance accessible via Reis Avenue; Eastbound exit and entrance accessible via Spruce Street[5] |
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| 1.20 | 1D | Glen Cove Road | |||
| Benicia | 2.24 | 3A | Columbus Parkway | Eastbound exit and entrance accessible via Rose Drive[6] | |
| 3.20 | 3B | Military West (Street) | Eastbound entrance accessible via Southampton Road[7] | ||
| 3.39 | 4 | Southampton Road | |||
| 5.19 | 5 | East Second Street | |||
| 5.62 | 6 | East Fifth Street | |||
| 6.52 | 7A | I-680 north - Sacramento |
Left exit, exit 7 westbound | ||
| 7B | I-680 south - San Jose |
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| Traffic defaults onto I-680 south. |
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[edit] State Law
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Route 780 is part of the Freeway and Expressway System, as stated by section 253.1 of the California State Highway Code. |
[edit] References
- ^ a b January 1, 2006 California Log of Bridges on State Highways
- ^ California Highways: Interstate Highway Types and the History of California's Interstates
- ^ California Highways: Interstate 780
- ^ Cal-NExUS Interchange Exit Numbering
- ^ Google Local: Laurel Street interchange
- ^ Google Local: Columbus Parkway interchange
- ^ Google Local: Military West interchange
[edit] External links
- 3 digit interstates at kurumi.com: Interstate 780
- California Highways: Interstate 780
- Western Exit Guide: Interstate 780 California
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Auxiliary routes of Interstate 80 | |
| Current and Future (F) | Former | |
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Illinois - Nebraska - Pennsylvania - Wyoming | California - Pennsylvania |
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California - Illinois/Iowa - New Jersey - Ohio | Nebraska - Pennsylvania |
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California - Iowa - Pennsylvania | |
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California - Iowa/Nebraska - Ohio | Pennsylvania |
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