{{short description|Highway in California}} {{Use American English|date=March 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road | state = CA | type = SR | route = 84 | section = 384 | maint = [[Caltrans]] | map = {{Maplink-road|raw={{Wikipedia:Map data/Wikipedia KML/California State Route 84}}}} | map_custom = yes | map_notes = SR&nbsp;84 highlighted in red, with the relinquished portions in [[West Sacramento, California|West Sacramento]] in pink | length_mi = 96 | length_round = 0 | length_ref = <ref name="bridgelog" /> | restrictions = {{Collapsible list | title = Special restrictions<ref>{{cite web | url=http://www.dot.ca.gov/hq/traffops/engineering/trucks/routes/restrict-list.htm | archive-url=https://web.archive.org/web/20140119090006/http://www.dot.ca.gov/hq/traffops/engineering/trucks/routes/restrict-list.htm | url-status=dead | archive-date=January 19, 2014 | title=Special Route Restrictions | publisher=Caltrans | access-date=2014-07-28}}</ref> | frame_style = border:none; padding:0; | list_style = text-align:left; | bullets = yes | 1 = No hazardous material in the [[Sunol Valley]] between [[California State Route 238|SR 238]] and [[Interstate 680 (California)|I-680]] | 2 = No tractor-trailers or vehicles over 16.25 tons on the [[Ryer Island Ferry]]. Length restrictions may also apply. }} | tourist = [[File:California Scenic State.svg|20px|alt=|link=]] Niles Canyon Road between [[California State Route 238|SR&nbsp;238]] in [[Fremont, California|Fremont]] and [[Interstate 680 (California)|I-680]] near [[Sunol, California|Sunol]] | direction_a1 = West | terminus_a1 = {{jct|state=CA|SR|1}} at [[San Gregorio, CA|San Gregorio]] | junction1 = {{plainlist |*{{jct|state=CA|I|280}} at [[Woodside, CA|Woodside]] *{{jct|state=CA|US|101}} from [[Redwood City, California|Redwood City]] to [[Menlo Park, California|Menlo Park]] *{{jct|state=CA|I|880}} from [[Newark, California|Newark]] to [[Fremont, California|Fremont]] *{{jct|state=CA|SR|238}} in Fremont *{{jct|state=CA|I|680}} near [[Sunol, CA|Sunol]] }} | direction_b1 = East | terminus_b1 = {{jct|state=CA|I|580}} in [[Livermore, CA|Livermore]] | direction_a2 = South | terminus_a2 = {{jct|state=CA|SR|12}} in [[Rio Vista, CA|Rio Vista]] | direction_b2 = North | terminus_b2 = Near Levee Access Road at the southern city limits of [[West Sacramento, California|West Sacramento]] | counties = [[San Mateo County, California|San Mateo]], [[Alameda County, California|Alameda]], [[Solano County, California|Solano]], [[Yolo County, California|Yolo]], [[Sacramento County|Sacramento]] | previous_type = SR | previous_route = 83 | next_type = SR | next_route = 85 }} '''State Route 84''' ('''SR 84''') is a [[state highway]] in the [[U.S. state]] of [[California]] that consists of two unconnected segments, one in the [[San Francisco Bay Area]] and the other primarily in the [[Sacramento–San Joaquin River Delta]] area.

The first section is an east&ndash;west [[arterial road]] running from [[California State Route 1|SR 1]] in [[San Gregorio, California|San Gregorio]] to [[Menlo Park, California|Menlo Park]], across the [[Dumbarton Bridge (California)|Dumbarton Bridge]] through [[Fremont, California|Fremont]] and [[Newark, California|Newark]] and ending at [[Interstate 580 (California)|I-580]] in [[Livermore, California|Livermore]]. The segment between Marsh Road and the Dumbarton Bridge has been upgraded to an [[Limited-access road|expressway]] and is known as the Bayfront Expressway. The segment from the eastern end of the Dumbarton Bridge to the interchange with I-880 has been upgraded to a freeway.

The other section is a north-south arterial road that begins at [[California State Route 12|SR 12]] in [[Rio Vista, California|Rio Vista]], passes through [[Ryer Island]] (where it connects to [[California State Route 220|SR 220]]), and ends in [[West Sacramento, California|West Sacramento]]. The [[Ryer Island Ferry]] provides the crossing over Cache Slough from Rio Vista to Ryer Island. The ferry is a diesel-powered boat operated by [[Caltrans]], and is in operation twenty-four hours per day and charges no toll.

There are no plans to connect the two unconnected segments of SR 84 at this time. A proposed toll road called the '''Mid-State Tollway''' along the proposed route was abandoned in 2001 due to local opposition.

==Route description== [[File:La Honda.png|thumb|SR 84 through [[La Honda, California|La Honda]].]] [[File:Woodside California 2004.jpg|thumb|SR 84 in [[Woodside, California|Woodside]] at the intersection of Whisky Hill Road]]

=== Southern section === The route begins at [[California State Route 1|SR 1]] on the [[Pacific]] coast near [[San Gregorio, California|San Gregorio]]. It then heads northeast through [[San Mateo County, California|San Mateo County]], following San Gregorio Road and La Honda Road and crossing the [[Santa Cruz Mountains]]. As it enters [[Woodside, California|Woodside]], it intersects [[California State Route 35|SR 35]], also known as Skyline Boulevard. From the juncture of La Honda Road with Portola Road to US 101 it follows Woodside Road. It then passes through downtown Woodside. After intersecting [[Interstate 280 (California)|I-280]], it enters [[Redwood City, California|Redwood City]], where it intersects [[California State Route 82|SR 82]], which carries [[El Camino Real (California)|El Camino Real]] through the South Bay. A few miles later, it interchanges with [[U.S. Route 101 in California|US 101]], which it overlaps for a few miles.

Upon routing eastward, it enters the city of [[Menlo Park, California|Menlo Park]] as an [[Limited-access road|expressway]], called the '''Bayfront Expressway''', which features traffic signals at Menlo Park streets, at [[driveway]]s serving [[Meta Platforms|Meta]] headquarters, and at intersections with [[California State Route 114|SR 114]] and [[California State Route 109|SR 109]]. The Marsh Road intersection, in 2013, was the site where a car struck cyclist Sam Felder, a Facebook employee, after he ran a red light. He died 3 months later.<ref>{{Cite web|url=https://www.almanacnews.com/news/2013/11/18/bicyclist-severely-injured-in-menlo-park-collision|title=Update: Bicyclist severely injured in Menlo Park accident|last=Brundage|first=Sandy|date=November 18, 2013|website=The Almanac}}</ref> The SR 114 (Willow Road) intersection was the site of a car crash in which author [[David Halberstam]] was killed on April 23, 2007.<ref>{{cite news|url=https://www.sfgate.com/bayarea/article/Author-David-Halberstam-killed-in-Menlo-Park-crash-2563566.php|title=Author David Halberstam killed in Menlo Park|work=[[San Francisco Chronicle]]|last=Coté|first=John |date=April 23, 2007 |access-date=23 April 2007}}</ref>

[[File:Dumbarton Bridge from Skeggs.png|right|thumb|Dumbarton Bridge on SR 84 as seen from [[Skeggs Point, California|Skeggs Point]].]] SR 84 then becomes a freeway at the south end of San Mateo County as it crosses as the [[Dumbarton Bridge (California)|Dumbarton Bridge]] over the [[San Francisco Bay]]. Midway over the bridge, it enters [[Alameda County, California|Alameda County]]. In [[Alameda County, California|Alameda County]], it runs northward through the city of [[Newark, California|Newark]], where it begins a concurrency southwards with [[Interstate 880 (California)|I-880]] for about one mile. Both interchanges with I-880 are [[partial cloverleaf interchange]]s. Upon separation, however, the route is not built to freeway standards as it enters the city of [[Fremont, California|Fremont]], following the streets of Thornton Avenue, Fremont Boulevard, Peralta Boulevard, and Mowry Avenue, which after, it has a short concurrency northwards with [[California State Route 238|SR 238]].

SR 84 then leaves Fremont through the historic [[Sunol Valley]]. Parts of the valley are extremely narrow and are referred to as [[Niles Canyon]]; this part of the route is officially a [[scenic route]].<ref>{{Cite web|url=https://www.americanroadmagazine.com/forum/topic/791-california-state-route-84-newest-scenic-highway/|title=California State Route 84--newest Scenic Highway|website=AMERICAN ROAD® FORUM—the ultimate road trip planning community. Copyright AMERICAN ROAD, LLC 2006-2015|language=en-US|access-date=2017-12-06}}</ref> The section is known as '''Niles Canyon Road''', and there are legends of a [[Niles Canyon ghost]] inhabiting the area.<ref>{{Cite news |last=Guerrero |first=Susana |date=4 March 2024 |title=The urban legend that won't die on this deadly Bay Area highway |url=https://www.sfgate.com/local/article/bay-area-niles-canyon-road-ghost-18684782.php}}</ref>

After exiting the valley, it begins an overlap with [[Interstate 680 (California)|I-680]]. After separating, it runs through Vallecitos Valley. It then goes over grasslands until it reaches a pass, then enters the city of [[Livermore, California|Livermore]] with Ruby Hill development on the left. SR 84 then runs along Isabel Avenue until it meets [[Interstate 580 (California)|I-580]], as the end of its southern section. SR 84 is unconstructed from I-580 to [[California State Route 12|SR 12]].

=== Northern section === [[File:Ryer Island ferry.jpeg|thumb|Ryer Island ferry]] The second section of SR 84 starts in [[Rio Vista, California|Rio Vista]] at SR 12. It then follows the [[Ryer Island Ferry]], which carries the route across the [[Cache Slough]]. When it leaves the ferry, it intersects [[California State Route 220|SR 220]]. It continues northward and meets the end of state maintenance at the [[West Sacramento]] city limit, about six miles east of an intersection with [[County Route E19 (California)|CR E19]]. It then enters the city of [[West Sacramento, California|West Sacramento]] in [[Yolo County, California|Yolo County]]. It then interchanges with [[Interstate 80 Business (Sacramento, California)|I-80 Business]], also signed as [[U.S. Route 50 in California|US 50]]. As it continues northward, it ends at [[Interstate 80 in California|I-80]]. From north of West Sacramento, SR 84 has been relinquished and was given to the city of West Sacramento in 2003.<ref>{{cite web|last1=Garcia|first1=Robert L.|title=Memorandum|url=http://www.dot.ca.gov/hq/transprog/ctcbooks/2003/0503/pdf/90(2.3c1).pdf|archive-url=https://web.archive.org/web/20160811120752/http://www.dot.ca.gov/hq/transprog/ctcbooks/2003/0503/pdf/90(2.3c1).pdf|url-status=dead|archive-date=August 11, 2016|website=90(2.3c1).pdf|publisher=CalTrans|access-date=12 June 2016|pages=1–2|date=May 21, 2003}}</ref>

SR 84 is part of the [[California Freeway and Expressway System]],<ref name="cafes">{{CAFESystem}}</ref> and from I-280 to the eastern Fremont city limits and from the southern terminous of Isabel Avenue in Livermore to I-580 is part of the [[National Highway System (United States)|National Highway System]],<ref name=fhwa-nhs>{{FHWA NHS map|region=californianorth|access-date=October 9, 2017}}</ref> a network of highways that are considered essential to the country's economy, defense, and mobility by the [[Federal Highway Administration]].<ref name=NHS-FHWA>{{FHWA NHS}}</ref> SR 84 is eligible for the [[State Scenic Highway System (California)|State Scenic Highway System]],<ref name="scenic">{{CA scenic}}</ref> and is designated as a scenic highway by the [[California Department of Transportation]] from SR 238 to I-680 in Alameda County,<ref name="caltransscenic">{{Caltrans scenic|access-date=October 9, 2017}}</ref> meaning that it is a substantial section of highway passing through a "memorable landscape" with no "visual intrusions", where the potential designation has gained popular favor with the community.<ref>{{Caltrans scenic info}}</ref>

==History== [[File:CA-84 Woodside April 2023 002.jpg|thumb|Aerial view of SR 84 near Woodside that was damaged during the [[2022–2023 California floods]]. ]]

===Original routing=== Until recent years, all of CA-84 consisted of narrow, two-lane roads in California. This has remained almost unchanged except for urban areas and the CA-84 widening project in the Tri-Valley.

===Modern history=== ====Mid-State Tollway==== Route 84 is legally defined to continue from I-580 to [[California State Route 4|SR 4]] in [[Antioch, California|Antioch]], but there are currently no plans in place to bridge the gap at this time. A plan to build a $600 million [[toll road]] called the '''Mid-State Tollway''' along the proposed route was suspended in 2001 due to local opposition.<ref>{{cite web|title=Mid-State Tollway|url=http://www.dot.ca.gov/hq/paffairs/about/toll/midstate.htm|archive-url=https://web.archive.org/web/20190627205626/http://www.dot.ca.gov/hq/paffairs/about/toll/midstate.htm|url-status=dead|archive-date=2019-06-27|publisher=CalTrans|access-date=15 April 2025}}</ref>

====CA-84 widening project==== In the late 2000s and 2010s, a widening project began on Route 84 from I-680 near Sunol to I-580 in Livermore. This included a better connection between Stanley Boulevard and Isabel Avenue.<ref>{{Cite news|url=https://patch.com/california/livermore/isabel-avenue-state-route-84-widening-to-begin-monday|title=Isabel Avenue/State Route 84 Widening to Begin Monday|date=2012-06-15|work=Livermore, CA Patch|access-date=2017-12-06|language=en-US}}</ref> The project was to be done in five phases: # Isabel Avenue/I-580 interchange # Jack London Boulevard to Concannon Boulevard, including connections to Stanley Boulevard # Concannon Boulevard to Vallecitos Road intersection and southern Ruby Hill entrance # Northern side of pass # Southern side of pass to I-680 Costs were estimated to be between $400 and $500 million.<ref>{{Cite web|url=http://www.dot.ca.gov/d4/84isabelwidening/docs/sr84_public-information-meeting_5-26-2016.pdf|archive-url=https://web.archive.org/web/20161227043321/http://www.dot.ca.gov/d4/84isabelwidening/docs/sr84_public-information-meeting_5-26-2016.pdf|url-status=dead|archive-date=December 27, 2016|title=Isabel Widening Information}}</ref>

As of mid 2019, phases 1, 2, 3 and 4 are complete. This still leaves the southern section of CA 84 in its original condition.

====Ryer Island Ferry==== Both the Ryer Island Ferry and the [[Howard Landing Ferry]] along [[California State Route 220|Route 220]] are the only state-run ferries, and there are no plans to replace them with bridges due to the low traffic numbers around Ryer Island.<ref name="SFChron">{{cite web | url=https://www.sfchronicle.com/travel/article/Last-public-car-ferries-still-ply-Sacramento-San-13266351.php | title=Last public car ferries still ply Sacramento-San Joaquin Delta | publisher=[[San Francisco Chronicle]] | date=October 3, 2018 |access-date=January 7, 2024}}</ref><ref name="KXTV">{{cite web | url=https://www.abc10.com/article/entertainment/television/programs/backroads/delta-floating-highway-bartells-backroads/103-8ed833fb-6715-4a19-84d3-cafff1bbba2a | title=The Delta's floating highway | publisher=[[KXTV]] | date=February 10, 2023 |access-date=January 6, 2024}}</ref><ref name="KPIX">{{cite web | url=https://www.cbsnews.com/sanfrancisco/news/california-delta-commuters-stymied-by-unreliable-ferry-service/ | title=California Delta commuters stymied by unreliable ferry service | publisher=[[KPIX]] | date=September 29, 2023 |access-date=January 7, 2024}}</ref> The only road bridge connecting Ryer Island is on its north side, which results in longer commutes for residents if one or both ferries shutdown.<ref name="SFGate">{{cite web | url=https://www.sfgate.com/bayarea/article/Tiny-delta-ferries-to-get-much-needed-repairs-3176900.php | title=Tiny delta ferries to get much-needed repairs | website=SFGate.com | date=October 3, 2018 |access-date=January 7, 2024}}</ref>

==Major intersections== {{CAinttop|exit|post_ref=<br><ref name=trucklist /><ref name=bridgelog>{{Caltrans bridgelog|date=July 2007}}</ref><ref>[[California Department of Transportation]], [https://traffic-counts.dot.ca.gov/ All Traffic Volumes on CSHS], 2003, 2005, and 2006</ref>|exit_ref=<br><ref>[[California Department of Transportation]], [[California Numbered Exit Uniform System]], [https://web.archive.org/web/20160820215239/http://www.dot.ca.gov/trafficops/exit/docs/eightyfournorth.pdf SR-84 Northbound] and [https://web.archive.org/web/20160820193847/http://www.dot.ca.gov/trafficops/exit/docs/eightyfoursouth.pdf SR-84 Southbound], accessed February 2008</ref> }} {{CAint|exit |county=San Mateo |cspan=12 |county_note=SM 0.00-R30.15 |location=San Gregorio |postmile=0.00 |exit= |road={{Jct|state=CA|SR|1|city1=Half Moon Bay|city2=Santa Cruz}} |notes=Southwest end of SR 84 }} {{CAint|exit |location=Woodside |lspan=2 |postmile=14.95 |exit= |road={{Jct|state=CA|SR|35|name1=[[Skyline Boulevard]]|city1=San Francisco|city2=Santa Cruz}} |notes= }} {{CAint|exit |postmile=21.54 |exit= |road={{Jct|state=CA|I|280|name1=[[Junipero Serra Freeway]]|city1=San Francisco|city2=San Jose}} |notes=Interchange; I-280 exit 25 }} {{CAint|exit |location=Redwood City |lspan=3 |postmile=24.70 |exit= |road={{Jct|state=CA|SR|82|name1=[[El Camino Real (California)|El Camino Real]]}} |notes=Interchange }} {{CAint|exit |type=concur |postmile=5.72 |line=yes |postmile2=5.39<ref group="N" name="US 101">Indicates that the postmile represents the distance along [[U.S. Route 101 in California|US 101]] rather than SR 84.</ref> |pmspan=2 |exit= |road={{Jct|state=CA|US|101|dir1=north|name1=[[Bayshore Freeway]]|city1=San Francisco|road|Seaport Boulevard}} |notes=Interchange; west end of US 101 overlap; US 101 exit 408 }} {{CAint|exit |mile=none |place=Western end of freeway on US 101 }} {{CAint|exit |location=Menlo Park |lspan=6 |postmile=3.59<ref group="N" name="US 101"/> |line=yes |postmile2=R25.81 |pmspan=2 |place=Eastern end of freeway on US 101 }} {{CAint|exit |type=concur |mile=none |exit= |road={{Jct|state=CA|US|101|dir1=south|name1=[[Bayshore Freeway]]|city1=San Jose|road|Marsh Road|city2=Atherton}} |notes=Interchange; east end of US 101 overlap; US 101 exit 406 }} {{CAint|exit |postmile=R27.66 |exit= |road=Willow Road ([[California State Route 114|SR&nbsp;114]]) |notes= }} {{CAint|exit |postmile=R28.19 |exit= |road=University Avenue ([[California State Route 109|SR&nbsp;109]]) |notes= }} {{CAint|exit |postmile=none |place=Western end of freeway }} {{CAint|exit |postmile=none |exit=— |road=Ravenswood, [[Don Edwards San Francisco Bay National Wildlife Refuge|S.F. Bay National Wildlife Refuge]] |notes= }} {{Jctbridge|exit |state=CA |type=etc |river=[[San Francisco Bay]] |postmile=R29.25 |postmile2=R0.00 |bridge=[[Dumbarton Bridge (California)|Dumbarton Bridge]] (westbound toll only) }} {{CAint|exit |county=Alameda |cspan=15 |county_note=ALA R0.00-R28.63 |location=Newark |lspan=3 |postmile=R3.75 |exit=36 |road=Thornton Avenue, Paseo Padre Parkway |notes=Last free exit for westbound traffic }} {{CAint|exit |postmile=R4.88 |exit=37 |road=Newark Boulevard, Ardenwood Boulevard |notes= }} {{CAint|exit |type=concur |postmile=R6.01 |line=yes |postmile2=10.30<ref group="N" name="I-880">Indicates that the postmile represents the distance along [[Interstate 880 (California)|I-880]] rather than SR 84.</ref> |exit=38 |road={{Jct|state=CA|I|880|dir1=north|name1=[[Nimitz Freeway]]|city1=Oakland|road|Decoto Road}} |notes=Interchange; west end of I-880 overlap; I-880 exit 21; former [[California State Route 17|SR 17]] north }} {{CAint|exit |location=Fremont |lspan=4 |postmile=8.84<ref group="N" name="I-880"/> |line=yes |postmile2=6.92 |pmspan=2 |place=Eastern end of freeway on I-880 }} {{CAint|exit |type=concur |mile=none |exit= |road={{Jct|state=CA|I|880|dir1=south|name1=[[Nimitz Freeway]]|city1=San Jose|road|Thornton Avenue}} |notes=Interchange; east end of I-880 overlap; I-880 exit 19; former [[California State Route 17|SR 17]] south }} {{CAint|exit |type=concur |postmile=10.82 |line=yes |postmile2=3.31<ref group="N" name="SR 238">Indicates that the postmile represents the distance along [[California State Route 238|SR 238]] rather than SR 84.</ref> |exit= |road={{Jct|state=CA|SR|238|dir1=south|name1=[[Mission Boulevard (East Bay, California)|Mission Boulevard]]|city1=San Jose}} |notes=West end of SR 238 overlap }} {{CAint|exit |type=concur |postmile=3.64<ref group="N" name="SR 238"/> |line=yes |postmile2=10.83 |exit= |road={{Jct|state=CA|SR|238|dir1=north|name1=[[Mission Boulevard (East Bay, California)|Mission Boulevard]]|city1=Hayward|city2=Union City|road|Niles Boulevard}} |notes=East end of SR 238 overlap }} {{CAint|exit |location=Sunol |type=incomplete |postmile=16.93 |exit= |road=[[Sunol, California|Sunol]] (Main Street) |notes=Interchange; eastbound exit and westbound entrance }} {{CAint|exit |location=none |lspan=2 |type=concur |postmile=17.99 |line=yes |postmile2=R11.04<ref group="N" name="I-680">Indicates that the postmile represents the distance along [[Interstate 680 (California)|I-680]] rather than SR 84.</ref> |pmspan=2 |exit= |road={{Jct|state=CA|I|680|dir1=south|city1=Fremont|city2=San Jose|road|Calaveras Road}} |notes=Interchange; west end of I-680 overlap; I-680 north exit 21A, south exit 21 }} {{CAint|exit |mile=none |place=Western end of freeway on I-680 }} {{CAint|exit |location=none |type=concur |postmile=R11.85<ref group="N" name="I-680"/> |line=yes |postmile2=17.99 |exit=— |road={{Jct|state=CA|I|680|dir1=north|city1=Walnut Creek|city2=Sacramento}} |notes=East end of I-680 overlap; I-680 north exit 21B, south via a U-turn at exit 21 }} {{CAint|exit |location=none |postmile=none |place=Eastern end of freeway }} {{CAint|exit |location=Pleasanton |postmile=23.56 |exit= |road=Vallecitos Road – [[Livermore, California|Downtown Livermore]] |notes=Former SR 84 east }} {{CAint|exit |location=Livermore |lspan=2 |postmile=R26.22 |exit= |road=Stanley Boulevard |notes=Interchange }} {{CAint|exit |postmile=none |exit= |road={{Jct|state=CA|I|580|city1=Oakland|city2=Stockton|road|Isabel Avenue to Portola Avenue}} |notes=Interchange; northeast end of southwestern segment of SR 84; I-580 exit 51 }} {{Jctgap}} {{CAint|exit |county=Solano |cspan=3 |county_note=SOL 0.13-13.67 |location=Rio Vista |postmile=0.13 |exit= |road={{Jct|state=CA|SR|12|city1=Lodi|city2=Fairfield|city3=Rio Vista|road|Front Street}} |notes=Interchange; south end of northern segment of SR 84 }} {{CAint|exit |location=none |postmile=2.49 |place={{jct|extra=ferry}} [[Ryer Island Ferry]] across [[Cache Slough]] }} {{CAint|exit |location=none |postmile=7.25 |exit= |road={{Jct|state=CA|SR|220|dir1=east|city1=Ryde}} |notes=Western terminus of SR 220 }} {{CAint|exit |county=Yolo |cspan=9 |county_note=YOL 0.00-24.05 |location=none |postmile=9.53 |exit= |road={{Jct|state=CA|CR|E19|county1=Yolo|dir1=east|name1=Clarksburg Road|city1=Clarksburg}} |notes=Western terminus of CR E19 }} {{CAint|exit |location=West Sacramento |lspan=8 |postmile=15.69 |place=North end of state maintenance at [[West Sacramento, California|West Sacramento]] city limit }} {{CAint|exit |postmile=R21.78 |exit= |road={{Jct|state=CA|US|50|name1=[[Interstate 80 Business (Sacramento, California)|I-80 BL]], [[Interstate 305 (California)|I-305]]|city1=San Francisco|city2=Sacramento}} |notes=Interchange; former [[Interstate 80 (California)|I-80]]; US 50 / I-80 BL exit 3 }} {{CAint|exit |postmile=21.84 |exit= |road=To [[Capitol Mall]] ([[California State Route 275|SR 275]], [[Christopher Cabaldon|Cabaldon]] Parkway) |notes=Interchange; former [[U.S. Route 40 in California|US 40]] / [[U.S. Route 99W (northern California)|US 99W]] (1955–1964); formerly Tower Bridge Gateway }} {{CAint|exit |postmile=22.06 |exit= |road=West Capitol Avenue |notes=Former [[U.S. Route 40 in California|US 40]] / [[U.S. Route 99W (northern California)|US 99W]] (1926–1955) }} {{CAint|exit |postmile=22.68 |exit= |road=Sacramento Avenue, Kegle Drive |notes=Sacramento Avenue is former [[California State Route 16|SR 16]] east }} {{CAint|exit |postmile=23.47 |exit= |road=Sunset Avenue – [[Woodland, California|Woodland]] |notes=Former [[California State Route 16|SR 16]] west }} {{CAint|exit |postmile=24.05 |exit= |road={{Jct|state=CA|I|80|I|5|to2=1|location1=[[Reno, Nevada|Reno]]|city2=San Francisco}} |notes=Interchange; north end of SR 84; former [[Interstate 880 (Sacramento, California)|I-880]]; I-80 exit 83; access to I-5 via I-80 east }} {{CAint|exit |postmile=24.05 |exit= |road=Reed Avenue |notes=Continuation beyond I-80 }} {{Jctbtm|col=6|keys=concur,etc,incomplete}} {{reflist|group="N"}}

==See also== *[[Vasco Road]] *{{portal-inline|California Roads}} *{{portal-inline|San Francisco Bay Area}}

==References== {{reflist|30em}}

==External links== {{commons category|California State Route 84}} {{Attached KML|display=inline,title}} {{CASR external links|SR|84}} *[http://www.bayareafastrak.org/ Bay Area FasTrak] – includes toll information on the Dumbarton Bridge and the other Bay Area toll facilities *[https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/d4-solano-delta-ferry Caltrans: Delta Ferries] – includes information on the Ryer Island Ferry *[http://www.aaroads.com/california/ca-084.html California @ AARoads - State Route 84] *[https://archive.today/20121211202144/http://www.dot.ca.gov/hq/paffairs/about/toll/midstate.htm Caltrans: Mid-State Tollway] *[http://www.cahighways.org/081-088.html#084 California Highways: SR 84]

[[Category:State highways in California|084]] [[Category:San Francisco Bay Area freeways|084]] [[Category:State Scenic Highway System (California)|084]] [[Category:Roads in Alameda County, California|State Route 084]] [[Category:Roads in San Mateo County, California|State Route 084]] [[Category:Roads in Solano County, California|State Route 084]] [[Category:Roads in Yolo County, California|State Route 084]]