&sq=Facebook&lang=en&file=File:I-580_(CA).svg) Interstate 580 | ||||
|---|---|---|---|---|
 I-580 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-80 | ||||
| Maintained by Caltrans | ||||
| Length | 75.550 mi[1][a] (121.586 km) | |||
| Existed | July 1, 1964[2]–present | |||
| Tourist routes |  William Elton "Brownie" Brown Freeway, and the MacArthur Freeway through Oakland[4] | |||
| NHS | Entire route | |||
| Restrictions | No trucks over 4.5 short tons (4.1 t; 4.0 long tons) through Oakland[3] | |||
| Major junctions | ||||
| West end |  US 101 in San Rafael | |||
| East end |  I-5 near Tracy | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | Marin, Contra Costa, Alameda, San Joaquin | |||
| Highway system | ||||
| ||||
Interstate 580 (I-580) is an approximately 76-mile-long (122 km) east–west auxiliary Interstate Highway in Northern California. The heavily traveled spur route of I-80 runs from US Route 101 (US 101) in San Rafael in the San Francisco Bay Area to I-5 at a point outside the southern city limits of Tracy in the Central Valley. I-580 forms a concurrency with I-80 between Albany and Oakland, the latter of which is the location of the MacArthur Maze interchange immediately east of the San Francisco–Oakland Bay Bridge. I-580 provides a connection from the Bay Area to the southern San Joaquin Valley and Southern California via I-5, as I-5 bypasses the Bay Area to the east.
A portion of I-580 is called the MacArthur Freeway, after General Douglas MacArthur. Other portions are named the John T. Knox Freeway (after a former speaker pro tempore of the California State Assembly), the Eastshore Freeway (after its location on San Francisco Bay), the Arthur H. Breed Jr. Freeway (after a former California State assemblyperson and senator—the stretch itself lying between the cities of Castro Valley and Dublin), the William Elton "Brownie" Brown Freeway (after a Tracy resident instrumental in determining the route of I-5 through the San Joaquin Valley), the Sgt. Daniel Sakai Memorial Highway (after the Castro Valley resident and Oakland SWAT officer killed in the 2009 shootings of Oakland police officers), and the John P. Miller Memorial Highway (after the Lodi resident and California Highway Patrol officer killed while chasing down a DUI driver).[2]
- ^ "State Truck Route List". California Department of Transportation. Archived from the original on October 27, 2008. Retrieved February 13, 2008.
- ^ a b Faigin, Daniel P. (March 1, 2022). "Interstate 580". California Highways. Archived from the original on April 22, 2022. Retrieved September 7, 2022.[self-published source]
- ^ Cite error: The named reference
truckhistorywas invoked but never defined (see the help page). - ^ California Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved March 27, 2019.
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