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Interstate 580 (California)

Interstate 580 marker

Interstate 580
Route information
Defined by Streets and Highways Code § 618
Maintained by Caltrans
Length: 75.550 mi[1] (121.586 km)
I-580 is broken into pieces, and the length does not reflect the I-80 overlap that would be required to make the route continuous.
Existed: August 7, 1947[2]
July 1, 1964 by Caltrans[3] – present
Restrictions: No trucks over 4.5 tons through Oakland[4]
Major junctions
West end: US 101 in San Rafael
  I‑80 / I‑880 in Oakland
I‑980 / SR 24 in Oakland
I‑238 / SR 238 in Castro Valley
I‑680 in Dublin
SR 84 near Livermore
I‑205 near Livermore
East end: I‑5 near Tracy
Highway system
I‑505 I‑605

Interstate 580 (I-580) is an 80-mile (129 km) east–west Interstate Highway in Northern California. The heavily traveled spur route of Interstate 80 runs from San Rafael in the San Francisco Bay Area to Interstate 5 near Tracy in the Central Valley. It provides access from San Francisco to the southern San Joaquin Valley and Southern California.

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 California State Assemblyman and Speaker Pro Tempore who currently practices law at Nossaman LLP), the Eastshore Freeway (after its location on San Francisco Bay), the Arthur H. Breed Jr. Freeway (after a former California State Assemblyman 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 Interstate 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).[3]

This route is part of the California Freeway and Expressway System[5] and is eligible for the State Scenic Highway System.[6]


  • Route description 1
    • Truck ban through Oakland 1.1
  • History 2
    • I-5 to Castro Valley 2.1
    • The MacArthur Freeway: Castro Valley to Oakland 2.2
    • Oakland to San Rafael 2.3
    • Interstate 180 2.4
  • Future 3
  • Exit list 4
  • In popular culture 5
  • References 6

Route description

I-580 emerging in the Central Valley near Tracy, CA
Eastbound I-580 at Grant Line Road about one mile away from the I-580/I-205 split.
I-580 at Palomares Road at the west end of Dublin Canyon
Westbound I-580 at Altamont Pass between Livermore and Tracy.
BART runs in the median of I-580 through Castro Valley

The western terminus of I-580 is roughly 10 miles north of San Francisco in the city of San Rafael (Marin County), at the junction with U.S. Route 101. The interchange with U.S. 101 is incomplete, only allowing continuous travel from southbound 101 to eastbound 580 (via exit 451B) and from westbound 580 to northbound 101. Heading eastward through the light industrial portion of eastern San Rafael, I-580 provides access to San Quentin State Prison at the eastern tip of land before joining the Richmond–San Rafael Bridge to cross San Francisco Bay. I-580 enters the city of Richmond in Contra Costa County mid-span, then continues through Richmond to join Interstate 80 in Albany at the "Hoffman Split."

After joining Interstate 80, I-580 runs directly south for several miles along the eastern shore of San Francisco Bay in the segment known as the Eastshore Freeway, then enters the MacArthur Maze. The segment between the Hoffman Split and the MacArthur Maze is a wrong-way concurrency, meaning I-580 east is signed as I-80 west, and vice versa. From the MacArthur Maze, I-580 is known as the MacArthur Freeway, which runs through Oakland and San Leandro to Castro Valley. About halfway to Castro Valley from the Maze, is an interchange with the Warren Freeway (State Route 13). Between this interchange and Castro Valley, I-580 runs near or along the trace of the Hayward Fault, a major branch of the San Andreas Fault.

In Castro Valley, I-580 turns eastward toward Dublin Canyon before descending into Dublin and Pleasanton. After passing through Livermore, the freeway enters the Altamont Pass. The road emerges in the Central Valley west of Tracy, where, after Interstate 205 splits near the Altamont Speedway, it turns southeastward and terminates by merging with Interstate 5 south of Tracy.

I-580 provides Interstate Highway access between San Francisco and Los Angeles since Interstate 5 runs east of the Bay Area. However, the primary control city listed on freeway signs along eastbound 580 between I-80 and I-205 is instead Stockton, a vestige of when this segment used to be part of U.S. Route 50.

Truck ban through Oakland

Trucks over 4.5 tons are prohibited through Oakland between Grand Avenue and the San Leandro border. Specifically, eastbound trucks cannot travel beyond the Grand Avenue/Lakeshore Avenue exit, and those going westbound must take the MacArthur Boulevard/Foothill Boulevard exit.[4][7] They are instead instructed to take Interstate 238 in Castro Valley and then Interstate 880 through Oakland as an alternative route.

The truck prohibition has been in effect since the freeway was built in 1963 as part of U.S. 50. Both the Federal Highway Administration (FHWA) and the California Department of Transportation (Caltrans) imposed the restriction, partly because the City of Oakland already had a truck ban through the area prior to the freeway's construction. Since then, the restriction was grandfathered in when the freeway was both renumbered and added to the Interstate Highway System.

As a result, it is the only segment of Interstate Highway in California that is not part of the National Truck Network (several other California state highways have similar truck bans, but not any other Interstates).[4][8] With trucks normally rerouted onto I-880 instead of I-580 through Oakland, the former generally gets more traffic than the latter. For decades, the trucking industry lobbied to have the ban removed, but was unsuccessful due to local opposition. In 2000, the California State Legislature passed Assembly Bill 500, adding the I-580 truck restriction into the California Vehicle Code.[9] However, the California Highway Patrol has frequently allowed trucks through temporarily when major accidents occur on I-880 or I-238.


What is now I-580 from I-5 to Oakland was originally conceived as part of a loop Interstate with a directional suffix, I-5W.[10] However, I-5W and most of the other Interstates around the country with directional suffixes were eventually renumbered or eliminated, sans I-35E and I-35W in Texas and Minnesota. The former route of I-5W now corresponds to I-580 from I-5 to Oakland, I-80 from Oakland to Vacaville, and Interstate 505 from Vacaville to I-5 near Dunnigan.

I-5 to Castro Valley

For the most part, the I-580 freeway in this segment was constructed over or alongside the right-of-way of U.S. Route 50, previously part of the old Lincoln Highway, during the course of the late 1960s and early 1970s. The segment which begins at the split with I-205 was constructed during the same period of time over a new right-of-way to a junction with I-5, running through some low hills on the west side of the San Joaquin Valley near the city of Patterson.

In the 1990s, the freeway segment from Castro Valley through Pleasanton was enlarged and otherwise re-engineered in conjunction with the construction of the Dublin/Pleasanton Line of the Bay Area Rapid Transit. The BART tracks were placed in a new median between the westbound and eastbound lanes of I-580 as was the new Dublin/Pleasantion Station. The interchange with I-238 and the Hayward exit ramps was also re-engineered at this time.

The MacArthur Freeway: Castro Valley to Oakland

The I-580 freeway in this segment was constructed in the 1960s adjacent to the city streets which were part of U.S. Route 50 between Castro Valley and the large interchange along the eastern approach to the San Francisco – Oakland Bay Bridge in Oakland now called the "MacArthur Maze". The freeway was named in honor of World War II General Douglas MacArthur. Some years prior to the construction of this freeway, the various city streets of Oakland (principally 38th Street, Hopkins Street, and part of Foothill Blvd.) had been named for the General as "MacArthur Boulevard" which, for the most part, still parallels the MacArthur Freeway.

Oakland to San Rafael

The segment of I-580 running from the MacArthur Maze to San Rafael is the most recent to be signed as I-580, beginning in 1984. Before 1984, this segment was part of State Route 17.

From the Maze to the interchange locally known as the "Hoffman Split" in Albany, just north of the Gilman Street interchange, I-580 follows the Eastshore Freeway, a wrong-way concurrency with I-80 for its entirety: northward on the Eastshore is signed I-80 East and I-580 West; headed southward, one finds signs indicating I-80 West and I-580 East.

At the Hoffman Split, I-580 leaves the Eastshore Freeway in a northwesterly direction through the cities of Albany and Richmond. It then crosses San Francisco Bay over the Richmond-San Rafael Bridge. The freeway in this section, officially named the John T. Knox Freeway, was constructed from 1987 to 1991. It replaced a number of city streets which comprised the earlier highway leading to the San Rafael Bridge, principally, Hoffman and Cutting Boulevards.

After crossing the bridge, I-580 runs west to San Rafael, ending at an interchange with U.S. Route 101. This freeway segment supplanted an earlier boulevard constructed as part of State Route 17.

Interstate 180

Interstate 180 was a temporary designation used in 1978 for the Richmond-San Rafael Bridge, now part of Interstate 580. At the time the bridge had been identified as part of State Route 17 but was marked for inclusion in the Interstate Highway System.

Briefly the bridge used the number 180, despite the Fresno-area State Route 180's use of the number. The California Streets and Highways Code has a policy against using one route number for multiple noncontiguous highways. Unless the existing Route 180 is renumbered, which is unlikely due to its familiarity as the road to Kings Canyon National Park, there will not be an Interstate 180 in California.


The segment of I-580 from I-680 to I-205 is undergoing significant expansion. Among the projects along this segment is the construction of high-occupancy vehicle lanes in each direction, a westbound auxiliary lane between Fallon Road and Tassajara Road, the construction of a new interchange at Isabel Avenue in Livermore, the reconstruction of several interchanges, the construction of additional truck climbing lanes for the eastward ascent to the Altamont Pass, and plans to preserve the right-of-way to accommodate a future BART extension in the median of the freeway.[11]

There is a plan to add high-occupancy toll (HOT) lanes along I-580 between Pleasanton and Livermore.[12] Under the plan, the 12-mile (19 km) stretch between Hacienda Drive and North Greenville Road is being modified to include HOT lanes, with the westbound Express Lanes being extended an additional 2 miles (3.2 km) to San Ramon Road/Foothill Road. They are scheduled to open in Fall 2015.[12] Solo drivers would then be required to use a FasTrak transponder.

Exit list

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on a south-to-north alignment (as originally conceived as part of I-5W, as well as the segment that was formerly part of State Route 17), and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

County Location Postmile
Destinations Notes
MRN 4.78-0.00
San Rafael 4.78 1A US 101 north – San Rafael, Santa Rosa Westbound exit and eastbound entrance; west end of I-580; US 101 south exit 451B
4.50 1B To US 101 south / Francisco Boulevard – San Francisco Signed as exit 1 eastbound
3.09 2A Sir Francis Drake Boulevard Westbound exit and eastbound entrance
2.48 2B Francisco Boulevard – San Quentin Signed as exit 2 eastbound
Marin – Contra Costa county line San Rafael – Richmond line   Richmond – San Rafael Bridge over San Francisco Bay
Contra Costa
CC 7.79-0.00
Richmond 6.01 7A Western Drive – Point Molate No eastbound exit
R5.43 7B To I‑80 east / Richmond Parkway – Port Richmond, Sacramento Signed as exit 7 eastbound
R4.64 8 Canal Boulevard, Garrard Boulevard
R3.60 9 Cutting Boulevard, Harbour Way Signed as exits 9A (Cutting Boulevard, Harbour Way south) and 9B (Harbour Way north) westbound
R2.89 10A Marina Bay Parkway, South 23rd Street
R2.09 10B Regatta Boulevard
1.21 11 Bayview Avenue
0.24 12 Central Avenue
ALA 48.04-0.00
Albany   13 Buchanan Street – Albany Signed as exit 13A westbound
R7.30[N 1]
I‑80 east (Eastshore Freeway) – Vallejo, Sacramento West end of I-80 overlap; westbound exit and eastbound entrance
Berkeley 6.62[N 1] 12 Gilman Street
5.82[N 1] 11 University Avenue – Berkeley
4.58[N 1] 10 SR 13 south (Ashby Avenue) / Shellmound Street Shellmound Street accessible only from westbound I-580 / eastbound I-80
Emeryville 3.79[N 1] 9 Powell Street – Emeryville
Oakland 2.80[N 1]
19A I‑80 west (Bay Bridge) – San Francisco East end of I-80 overlap; no exit number eastbound; I-80 east exit 8B
46.46 I‑80 west – San Francisco HOV access only; eastbound left exit and westbound entrance
46.46 I‑880 south (Nimitz Freeway) / West Grand Avenue – Alameda, San Jose Eastbound exit and westbound entrance
46.01 19A MacArthur Boulevard, San Pablo Avenue (SR 123) Eastbound left exit and westbound entrance
45.39 19B West Street, San Pablo Avenue (SR 123) Westbound exit and eastbound entrance
45.15 19C SR 24 east (Grove-Shafter Freeway) – Berkeley, Walnut Creek Signed as exit 19B eastbound; provides direct exit ramp onto Martin Luther King Jr Way/51st Street; SR 24 exit 2B
45.15 19D I‑980 west (Grove-Shafter Freeway) to I‑880 – Downtown Oakland Signed as exit 19C eastbound; provides direct exit ramp onto 27th Street/West Grand Avenue; I-980 exit 2A
44.51 20 Webster Street, Broadway-Auto Row Eastbound exit only
44.28 21A Harrison Street / Oakland Avenue / MacArthur Boulevard
43.75 21B Grand Avenue
43.48 22A Lake Shore Avenue Eastbound exit is via exit 21B
22B Park Boulevard, 14th Avenue Signed as exit 22 eastbound
R41.43 23 Fruitvale Avenue, Coolidge Avenue Signed as exit 24 westbound
R40.65 24 35th Avenue Eastbound exit and westbound entrance
R40.08 25A High Street Westbound exit is via exit 25
R39.91 25B MacArthur Boulevard Signed as exit 25 westbound
R39.24 26A SR 13 north (Warren Freeway) – Berkeley Eastbound exit is via exit 26; SR 13 exits 1A-B
R38.92 26B Seminary Avenue Signed as exit 26 eastbound
R38.31 27A Edwards Avenue Eastbound exit and westbound entrance
R37.80 27B Keller Avenue, Mountain Boulevard Signed as exit 27 westbound
R36.34 29A Golf Links Road, 98th Avenue Signed as exit 29 westbound
OaklandSan Leandro line R35.71 29B 106th Avenue, Foothill Boulevard Eastbound exit and westbound entrance
R35.11 30 MacArthur Boulevard, Foothill Boulevard Westbound exit and eastbound entrance
R34.48 31A Dutton Avenue, Estudillo Avenue – Downtown San Leandro Signed as exit 31 westbound
San Leandro R33.94 31B Grand Avenue – Downtown San Leandro Eastbound exit and westbound entrance
R33.43 32A Benedict Drive Westbound exit only
32B 150th Avenue, Fairmont Drive Signed as exit 32 eastbound
R31.71 33 164th Avenue, Miramar Avenue, Carolyn Street
Castro Valley R30.81 34 I‑238 north to I‑880 Left exit westbound; I-238 exit 14
R30.81 34 SR 238 south – Hayward Eastbound exit and westbound entrance
30.35 35 Strobridge Avenue
R29.37 36A Redwood Road – Castro Valley
R28.75 36B Grove Way – Castro Valley
R26.23 39 Eden Canyon Road, Palomares Road
PleasantonDublin line R21.43 44A San Ramon Road, Foothill Road – Dublin
  I-580 Express Lanes west West end of westbound Express Lanes; scheduled to open in Fall 2015[12]
20.73 44B I‑680 – Sacramento, San Jose I-680 exits 30A-B
19.86 45 Hopyard Road, Dougherty Road
18.82 46 Hacienda Drive, Dublin Boulevard
  I-580 Express Lanes east West end of eastbound Express Lanes; scheduled to open in Fall 2015[12]
17.95 47 Santa Rita Road, Tassajara Road
Dublin 16.70 48 El Charro Road, Fallon Road
Livermore 14.98 50 Airway Boulevard, Collier Canyon Road
  51 SR 84 (Isabel Avenue) / Portola Avenue
13.22 52A Portola Avenue Closed; former eastbound exit and westbound entrance
12.53 52B North Livermore Avenue – Downtown Livermore Signed as exit 52 westbound
10.69 54 First Street, Springtown Boulevard Former SR 84
9.68 55 Vasco Road – Brentwood
  I-580 Express Lanes East end of Express Lanes; scheduled to open in Fall 2015[12]
R8.27 57 North Greenville Road, Altamont Pass Road, Laughlin Road
  R5.98 59 North Flynn Road
  R1.48 63 Grant Line Road – Byron
  0.42 65 I‑205 east – Tracy, Stockton Eastbound left exit and westbound entrance
San Joaquin
SJ 15.31-0.00
  13.54 67 Mountain House Parkway, Patterson Pass Road
Tracy 8.15 72 Corral Hollow Road
  4.34 76 SR 132 east – Modesto Westbound exit is via exit 76
  4.02 76 Chrisman Road – Tracy Westbound exit and eastbound entrance
  0.00 I‑5 south – Fresno, Los Angeles Eastbound exit and westbound entrance; east end of I-580; I-5 north exit 446
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ a b c d e f Indicates that the postmile represents the distance along I-80 rather than I-580.

In popular culture

  • I-580 features prominently throughout the Sons of Anarchy series. The backstory of the series establishes that "First 9" (SAMCRO co-founder) John Teller died in a collision on November 13, 1993, 15 years before the pilot episode takes place, and SAMCRO establishes a roadside memorial to Teller near the crash site.[15][16] In the final scens of the series finale, Jax rides his father's restored classic motorcycle to visit that memorial,[17] before taking a last ride on I-580.[18]
  • I-580 through the Altamont Pass is a stage in the 2011 racing video game Need for Speed: The Run.


  1. ^ a b c California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original ( 
  2. ^ "California Highways: Interstate Highway Types and the History of California's Interstates". Retrieved 2013-01-26. 
  3. ^ a b "California Highways: Interstate 580". Retrieved 2013-01-26. 
  4. ^ a b c "Special Route Restriction History - Route 580". Caltrans. Retrieved 2015-10-02. 
  5. ^ "CA Codes (shc:250-257)". Retrieved 2013-01-26. 
  6. ^ "CA Codes (shc:260-284)". Retrieved 2013-01-26. 
  7. ^ a b California Department of Transportation, Log of Bridges on State Highways, July 2007
  8. ^ "Special Route Restrictions". Caltrans. Retrieved 2015-10-02. 
  9. ^ Corbett. "California Assembly Bill 500". Retrieved 2013-01-26. 
  10. ^ "California Highways-Routes 1-8". California Highways. Retrieved 2012-09-03. 
  11. ^ "I-580 Corridor Improvements: Project List". Archived from the original on January 11, 2007. Retrieved 2009-03-02. 
  12. ^ a b c d e "I-580 Express Lanes". Alameda County Transportation Commission. Retrieved 2015-07-04. 
  13. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
  14. ^ California Department of Transportation, California Numbered Exit Uniform System, I-580 Eastbound and I-580 Westbound, accessed February 2008
  15. ^ Fitzpatrick, Kevin (November 5, 2013). "John 8:32". ScreenCrush. 
  16. ^ Hinckley, David Hinckley (October 28, 2014). "'Sons of Anarchy' Season 7, Episode 8 recap: Jax and his SAMCRO crew are revved up for revenge in 'The Separation of Crows'". New York Daily News. 
  17. ^ Keveney, Bill (December 10, 2014). "The 6 biggest moments from the 'Sons of Anarchy' finale". USA Today. 
  18. ^ Barney, Chuck Barney (December 10, 2014). Sons of Anarchy' finale recap: The way it had to end"'". Contra Costa Times. 
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