Interstate 980

Interstate 980
John B. Williams Freeway
Route information
Defined by Streets and Highways Code § 624
Maintained by Caltrans
Length:	2.027 mi[1] (3.262 km)
Existed:	1976 (FHWA); 1981 (state) – present
Major junctions
West end:	I‑880 in Oakland
East end:	I‑580 / SR 24 in Oakland
Location
Counties:	Alameda
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State highways in California List Pre-1964 History Unconstructed Deleted Freeway Scenic ← SR 905 SR 1 →

Interstate 980 (I-980) is a short Interstate Highway spur entirely within Oakland, California, connecting Interstate 580 and State Route 24 to Interstate 880 near Downtown Oakland. I-980 passes the Oakland Convention Center and near the famous Jack London Square. I-980 is commonly considered the dividing line between Downtown Oakland and West Oakland. The freeway was planned as the eastern approach to the San Francisco Bay Southern Crossing. It is officially known as the John B. Williams Freeway, after the former director of the City of Oakland's Office of Community Development.

Interstate 980 was used as an alternate route between Oakland and San Francisco when the Cypress Viaduct carrying Interstate 880 collapsed in the Loma Prieta earthquake in 1989. Traffic headed from the south would have to use 980 to 580 west to Interstate 80 west to get across the Bay Bridge to reach San Francisco. This ended when Interstate 880 reopened on a new alignment in 1998.

This route is part of the California Freeway and Expressway System.^[2]

Route description

Although I-980 physically goes in a diagonal direction from southwest to northeast, it is signed as an east–west route like SR 24. Immediately after traffic leaves I-880 on elevated connector ramps, I-980 then descends below grade to pass under downtown city streets. The freeway then ascends above grade to pass over San Pablo and 27th Street before reaching I-580 and SR 24.

The freeway itself lacks overhead guide signs mentioning I-980. Immediately after Exit 1B - 17th Street/San Pablo Avenue going eastbound on I-980 is a guide sign mentioning the junction with I-580. Likewise, the guide signs on westbound I-980 at Exit 1D - 18th Street list I-880 and San Jose as a control city.

History

I-980 was added to the state highway system in 1947 as part of Legislative Route 226,^[3] and to the California Freeway and Expressway System in 1959.^[4] This segment of Route 226 became part of State Route 24 in the 1964 renumbering.^[5] The Federal Highway Administration approved the addition of the roadway to the Interstate Highway System in January 1976, with Interstate funding only used west of San Pablo Avenue,^[6] and the number was legislatively changed to 980 in 1981.^[7]

Construction on Interstate 980 began in the 1960s, but was not completed until 1985;^[8] officially the freeway was designated as I-980 from its opening. The surface roads which existed prior to the completion of the freeway had been designated as State Route 24.

It is assumed by many that had the San Francisco Bay Southern Crossing ever been built, it would have carried the designation of I-980; this remains purely speculative, however.

The San Francisco Chronicle reported in November 2015 about a grassroots organization of local architects and planners, and supported by Oakland mayor Libby Schaaf, that propose to replace I-980 with a landscaped city boulevard.^[9] ConnectOakland is coordinating the push for a replacement. Arguments for replacement focus on the freeway's low volume of traffic and negative impact on surrounding neighborhoods.

Exit list

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, 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 entire route is in Oakland, Alameda County.

Postmile[10]	Exit[10]	Destinations	Notes
0.01	—	I‑880 south (Nimitz Freeway) – San Jose	Westbound exit and eastbound entrance; west end of I-980; I-880 north exit 42A
0.01	—	Jackson Street	Westbound exit only
0.01	1A	11th Street / 14th Street	Eastbound exit and westbound entrance only
0.01	1B	17th Street / San Pablo Avenue	Eastbound exit and westbound entrance only
0.54	1C	12th Street / 11th Street	Westbound exit and eastbound entrance only
0.90	1D	18th Street / 14th Street	Westbound exit and eastbound entrance only
2.04	—	I‑580 (MacArthur Freeway) – San Francisco, Hayward	Eastbound exit and westbound entrance; east end of I-980; I-580 east exit 19C, west exit 19D
2.04	—	SR 24 east (Grove-Shafter Freeway) – Berkeley, Walnut Creek	Continuation beyond I-980; SR 24 exit 2A
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

References

External links

Route map: Bing / Google

• Interstate 980 connection from 1966 Southern Crossing plan

Auxiliary routes of Interstate 80 California 1801 238 280 380 4801 580 680 780 880 8801 980 Business Nevada 580 Business Utah Business Wyoming 180 Business Nebraska 180 2801 480 5801 680 Iowa 280 380 480 680 Illinois 180 280 Ohio 280 3802 480 680 Pennsylvania 180 1801 2801 380 4801 6801 New Jersey 280 6801 1Former 2Proposed