Section of Interstate Highway in California, United States
This article is about the section of Interstate 80 in California. For the entire route, see Interstate 80.
Interstate 80
Dwight D. Eisenhower Highway
I-80 highlighted in red
Route information
Maintained by Caltrans
Length
205.07 mi[1][2] (330.03 km)
199.24 miles (320.65 km) per FHWA[1]
Existed
July 1, 1964[3]–present
Tourist routes
Yuba-Donner Scenic Byway
NHS
Entire route
Restrictions
No flammable tank vehicles or explosives on the Bay Bridge[4]
Major junctions
West end
US 101 in San Francisco
Major intersections
I-580 / I-880 in Oakland
SR 4 in Hercules
I-780 in Vallejo
I-680 in Fairfield
I-505 in Vacaville
US 50 / I-80 BL in West Sacramento
I-5 / SR 99 in Sacramento
I-80 BL in Sacramento
SR 49 in Auburn
SR 89 / SR 267 in Truckee
East end
I-80 at Nevada state line near Verdi, NV
Location
Country
United States
State
California
Counties
San Francisco, Alameda, Contra Costa, Solano, Napa, Yolo, Sacramento, Placer, Nevada, Sierra
Highway system
Interstate Highway System
Main
Auxiliary
Suffixed
Business
Future
State highways in California
Interstate
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
← SR 79
→ US 80
Interstate 80 (I-80) is a transcontinental Interstate Highway in the United States, stretching from San Francisco, California, to Teaneck, New Jersey. The segment of I-80 in California runs east from San Francisco across the San Francisco–Oakland Bay Bridge to Oakland, where it turns north and crosses the Carquinez Bridge before turning back northeast through the Sacramento Valley. I-80 then traverses the Sierra Nevada, cresting at Donner Summit, before crossing into the state of Nevada within the Truckee River Canyon. The speed limit is at most 65 mph (105 km/h) along the entire route instead of the state's maximum of 70 mph (110 km/h) as most of the route is in either urban areas or mountainous terrain. I-80 has portions designated as the Eastshore Freeway and Alan S. Hart Freeway.
Throughout California, I-80 was built along the corridor of US Route 40 (US 40), eventually replacing this designation entirely. The prior US 40 corridor itself was built along several historic corridors in California, notably the California Trail and Lincoln Highway. The route has changed from the original plans in San Francisco due to freeway revolts canceling segments of the originally planned alignment. Similarly in Sacramento, the freeway was rerouted around the city after plans to upgrade the original grandfathered route through the city to Interstate Highway standards were canceled.
^ ab"Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. December 31, 2021. Retrieved June 9, 2022.
^Cite error: The named reference calnexus was invoked but never defined (see the help page).
^Faigin, Daniel P. "Routes 73 through 80: Interstate 80". California Highways. Retrieved January 26, 2013.[self-published source]
^"Truck Networks on California State Highways: District 4" (PDF). California Department of Transportation. May 1, 2015. Retrieved May 3, 2016.
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