| 词条 | Interstate 980 |
| 释义 |
|state=CA |route=980 |type=I |alternate_name=John B. Williams Freeway |section=624 |map={{maplink|frame=yes|plain=yes|frame-align=center|frame-width=290|frame-height=290|frame-lat=37.812|frame-long=-122.274|zoom=13|type=line|raw={{Wikipedia:Map data/Wikipedia KML/Interstate 980}}}} |map_custom=yes |map_notes=I-980 highlighted in red |length_mi=2.027 |length_ref= |established=1976 (FHWA); 1981 (state) |counties=Alameda |direction_a=South |terminus_a={{Jct|state=CA|I|880}} in Oakland |direction_b=North |terminus_b={{Jct|state=CA|I|580|SR|24}} in Oakland |previous_type=SR |previous_route=905 |next_type=SR |next_route=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 1997 (1999 to and from I-80 east). Route descriptionAlthough I-980 physically goes north and south, 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. Since 2018, Jackson Street and I-880 south have been signed as exit 1B and 1A in the westbound direction. I-980 is part of the California Freeway and Expressway System,[1] and is part of the National Highway System,[2] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[3] HistoryI-980 was added to the state highway system in 1947 as part of Legislative Route 226,[4] and to the California Freeway and Expressway System in 1959.[5] This segment of Route 226 became part of State Route 24 in the 1964 renumbering.[6] 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,[7] and the number was legislatively changed to 980 in 1981.[8] Construction on Interstate 980 began in the 1960s, but was not completed until 1985;[9] 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.[10] 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. In January 2017 I-980 was included in the Congress for the New Urbanism "Freeways without Futures" report.[11][12] Exit list{{CAinttop|exit|post_ref=[13] |mile=no |exit_ref=[13] |location=Oakland |county=Alameda }}{{CAint|exit |postmile=0.01 |exit= 0A |road={{Jct|state=CA|I|880|dir1=south|name1=Nimitz Freeway|city1=San Jose}} |notes=Westbound exit and eastbound entrance; west end of I-980; I-880 exit 42A northbound, signed as exit 0A westbound in 2018 |type=incomplete }}{{CAint|exit |postmile=0.01 |exit=0B |road=Jackson Street |notes=Westbound exit only, signed as exit 0B westbound in 2018 |type=incomplete }}{{CAint|exit |postmile=0.01 |exit=1A |road=11th Street, 14th Street |notes=Eastbound exit and westbound entrance only |type=incomplete }}{{CAint|exit |postmile=0.01 |exit=1B |road=17th Street, San Pablo Avenue |notes=Eastbound exit and westbound entrance only |type=incomplete }}{{CAint|exit |postmile=0.54 |exit=1C |road=12th Street, 11th Street |notes=Westbound exit and eastbound entrance only |type=incomplete }}{{CAint|exit |postmile=0.90 |exit=1D |road=18th Street, 14th Street |notes=Westbound exit and eastbound entrance only |type=incomplete }}{{CAint|exit |postmile=0.90 |exit=2A |road=27th Street, West Grand Ave |notes=Westbound exit and eastbound entrance only |type=incomplete }}{{CAint|exit |postmile=2.04 |exit=— |road={{Jct|state=CA|I|580|name1=MacArthur Freeway|city1=San Francisco|city2=Hayward}} |notes=Eastbound exit and westbound entrance; east end of I-980; I-580 exit 19C eastbound, 19D westbound }}{{CAint|exit |postmile=2.04 |exit=— |road={{Jct|state=CA|SR|24|dir1=east|name1=Grove-Shafter Freeway|city1=Berkeley|city2=Walnut Creek}} |notes=Continuation beyond I-980; CA 24 exit 2A }}{{jctbtm|col=6|keys=incomplete}} See also
References1. ^{{CAFESystem}} 2. ^{{FHWA NHS map|region=sanfrancisco|accessdate=July 22, 2017}} 3. ^{{FHWA NHS}} 4. ^{{cite CAstat|year=1947|ex=1|ch=11|p=3798}}: "Route 226 is from a point in the vicinity of the intersection of Webster Street and Santa Clara Avenue in Alameda to a point on Route 5 [I-580] in Oakland." 5. ^{{cite CAstat|year=1959|ch=1062|p=3114}}: "Route 226 [SR 61, SR 260, and I-980] from Route 258 [SR 13] near San Leandro to Route 5 [I-580]." 6. ^{{cite CAstat|year=1963|ch=385|p=1173}}: "Route 24 is from: (a) Route 17 near Castro Street in Oakland to Route 580..." 7. ^California Department of Transportation, State Highway Routes: Selected Information, 1994 with 1995 revisions 8. ^{{cite CAstat|year=1981|ch=292|p=1419}}: "Route 980 is from Route 17 in Oakland to Route 580." 9. ^{{cite web|url=http://www.interstate-guide.com/i-980_ca.html |title=Interstate 980 California @ |publisher=Interstate-guide.com |date= |accessdate=2013-01-26}} 10. ^{{cite web | url=http://www.sfchronicle.com/bayarea/article/Oakland-moving-in-right-direction-with-idea-to-6633056.php | title=Oakland moving in right direction with idea to replace I-980 | newspaper=San Francisco Chronicle | first=John | last=King | date=November 14, 2015 | accessdate=November 16, 2015}} 11. ^{{Cite web|url=http://www.mercurynews.com/2017/01/30/report-oaklands-i-980-on-national-top-ten-list-for-teardown/|title=Report: Oakland's I-980 on national 'top ten' list for teardown|access-date=2017-02-04}} 12. ^{{Cite news|url=https://www.cnu.org/highways-boulevards/freeways-without-futures/2017#980|title=Freeways Without Futures 2017|first=|date=2017-01-26|work=|newspaper=CNU|language=en|access-date=2017-02-04|via=}} 13. ^1 {{cite web |date= April 18, 2008|first= KS |last= Warring |publisher= California Department of Transportation |work= California Numbered Exit Uniform System |url= http://www.dot.ca.gov/trafficops/exit/docs/980.pdf |format= PDF |title= Interstate 980 Freeway Interchanges |accessdate= September 1, 2014}} External links{{Attached KML|display=inline,title}}{{commonscat}}
5 : Interstate 80|Interstate Highways in California|San Francisco Bay Area freeways|Auxiliary Interstate Highways|Roads in Alameda County, California |
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