请输入您要查询的百科知识：

　

词条 California State Route 84
释义

  1. Route description

      Southern section    Northern section  

  2. History

     Original routing  Modern history  Mid-State Tollway  CA-84 widening project 

  3. Major intersections

  4. See also

  5. References

  6. External links

{{Infobox road
|state=CA
|type=SR
|route=84
|section=384
|maint=Caltrans
|map_notes=SR 84 highlighted in red with recently relinquished portions in pink
|length_mi=96
|length_round=0
|length_ref=[1]
|restrictions = {{Collapsible list
| title = Special restrictions[1]
| frame_style = border:none; padding:0;
| list_style = text-align:left;
| bullets = yes
| 1 = No hazardous material in the Sunol Valley between SR 238 and I-680
| 2 = No tractor-trailers or vehicles over 16.25 tons on the Ryer Island Ferry. Length restrictions may also apply.
|direction_a1=West
|terminus_a1={{jct|state=CA|SR|1}} at San Gregorio
|junction1={{plainlist
|*{{jct|state=CA|I|280}} at Woodside
  • {{jct|state=CA|US|101}} in Redwood City
  • {{jct|state=CA|I|880}} in Fremont
  • {{jct|state=CA|SR|238}} in Fremont
  • {{jct|state=CA|I|680}} near Sunol

}}
|direction_b1=East
|terminus_b1={{jct|state=CA|I|580}} in Livermore
|direction_a2=South
|terminus_a2={{jct|state=CA|SR|12}} in Rio Vista
|direction_b2=North
|terminus_b2=Levee Access Road near West Sacramento
|counties=San Mateo, Alameda, Solano, Yolo
|previous_type=SR
|previous_route=83
|next_type=SR
|next_route=85
}}

State Route 84 (SR 84) is California State Highway consisting of two sections. The first section is an east–west arterial road running from San Gregorio to Menlo Park, across the Dumbarton Bridge through Fremont and Newark and ending at I-580 in Livermore. The route overlaps the freeway segment of US 101 between Woodside Road in Redwood City and Marsh Road in Menlo Park. The segment between Marsh Road and the Dumbarton Bridge has been upgraded to an 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 SR 12 in Rio Vista, passes through Ryer Island (where it connects to SR 220), and ends at the I-80 interchange in West Sacramento. A ferry provides the crossing over Cache Slough from Rio Vista to Ryer Island. The ferry, a diesel-powered boat operated by Caltrans, is in operation twenty-four hours per day and charges no toll. There are no plans to finish the unconstructed portion of the highway at this time.

Route description

Southern section

The route begins at SR 1 on the Pacific coast near San Gregorio. It then heads northeast through San Mateo County crossing the Santa Cruz Mountains. As it enters Woodside, it intersects SR 35, also known as Skyline Boulevard, then I-280. It then enters Redwood City, where it intersects SR 82, which carries El Camino Real through the South Bay. A few miles later, it interchanges with US 101, which it overlaps for a few miles. Upon routing eastward, it enters the city of Menlo Park as an expressway, called the Bayfront Expressway where it intersects SR 114 and SR 109 at grade intersections. The SR 114 (Willow Road) intersection was the site of the car crash in which author David Halberstam was killed on April 23, 2007.[2]

SR 84 then becomes a freeway at the south end of San Mateo County as it crosses as the Dumbarton Bridge over the San Francisco Bay. Midway over the bridge, it enters Alameda County. In Alameda County, it runs northward through the city of Newark, where it begins a concurrency southwards with I-880 for about one mile. Both interchanges with I-880 are partial cloverleaf interchanges. Upon separation, the route isn't upgraded to freeway standards as it enters the city of Fremont, following the streets of Thornton Ave, Fremont Blvd, Peralta Blvd, and Mowry Ave, which after, it has a short concurrency northwards with 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 now officially a scenic route.[3] After exiting the valley, it begins an overlap with 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 with Ruby Hill development on the left. Here, one must turn left onto Isabel Avenue to stay on the highway. CA 84 then runs along Isabel Ave until it meets I-580, as the end of its southern section. SR 84 is unconstructed from I-580 to SR 12.

Northern section

The second section of SR 84 starts in 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 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 CR E19. It then enters the city of West Sacramento in Yolo County. It then interchanges with I-80 Business, also signed as US 50. As it continues northward, it ends at I-80. From north of West Sacramento, SR 84 has been relinquished and given to the city of West Sacramento in 2003.[4]

SR 84 is part of the California Freeway and Expressway System,[5] but is not part of the National Highway System,[6] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[7] SR 84 is eligible for the State Scenic Highway System,[8] and is designated as a scenic highway by the California Department of Transportation from SR 238 to I-680 in Alameda County,[9] 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.[10]

History

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 SR 4 in 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.[11]

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.[12] The project was to be done in five phases:

  1. Isabel Avenue/I-580 interchange
  2. Jack London Boulevard to Concannon Boulevard, including connections to Stanley Boulevard
  3. Concannon Boulevard to Vallecitos Road intersection and southern Ruby Hill entrance
  4. Northern side of pass
  5. Southern side of pass to I-680

Costs were estimated to be between $400 and $500 million.[13]

As of late 2017, phases 1, 2, and 4 are complete. This still leaves much of CA 84 in its original condition.

Major intersections

{{CAinttop|exit|post_ref=
[14][15]|exit_ref=
[16]
}}{{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=
}}{{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}}
|notes=Interchange
}}{{CAint|exit
|type=concur
|postmile=5.72
|line=yes
|postmile2=5.39[17]
|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
|postmile=none
|place=West end of freeway on US 101
}}{{CAint|exit
|location=Menlo Park
|lspan=6
|postmile=none
|place=East end of freeway on US 101
}}{{CAint|exit
|type=concur
|postmile=3.59[17]
|line=yes
|postmile2=R25.81
|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={{Jct|state=CA|SR|114|to2=to|US|101|dir2=south|name1=Willow Road|city1=Menlo Park}}
|notes=
}}{{CAint|exit
|postmile=R28.19
|exit=
|road={{Jct|state=CA|SR|109|name1=University Avenue|city1=East Palo Alto}}
|notes=
}}{{CAint|exit
|postmile=none
|place=West end of freeway
}}{{CAint|exit
|postmile=none
|exit=
|road=Ravenswood, S.F. Bay National Wildlife Refuge
|notes=
}}{{CAint|exit
|county1=San Mateo
|county2=Alameda
|location1=Menlo Park
|location2=Newark
|postmile=none
|bridge=Dumbarton Bridge over San Francisco Bay
}}{{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=
}}{{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[18]
|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
}}{{CAint|exit
|location=Fremont
|lspan=4
|postmile=none
|place=East end of freeway on I-880
}}{{CAint|exit
|type=concur
|postmile=8.84[18]
|line=yes
|postmile2=6.92
|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
}}{{CAint|exit
|type=concur
|postmile=10.82
|line=yes
|postmile2=3.31[19]
|exit=
|road={{Jct|state=CA|SR|238|dir1=south|name1=Mission Boulevard|city1=San Jose}}
|notes=West end of SR 238 overlap
}}{{CAint|exit
|type=concur
|postmile=3.64[19]
|line=yes
|postmile2=10.83
|exit=
|road={{Jct|state=CA|SR|238|dir1=north|name1=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 (Main Street)
|notes=Interchange; eastbound exit and westbound entrance
}}{{CAint|exit
|location=none
|type=concur
|postmile=17.99
|line=yes
|postmile2=R11.04[20]
|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
|location=none
|postmile=none
|place=West end of freeway on I-680
}}{{CAint|exit
|location=none
|type=concur
|postmile=R11.85[20]
|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=East end of freeway
}}{{CAint|exit
|location=Pleasanton
|postmile=23.56
|exit=
|road=Vallecitos Road – 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; 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
}}{{CAint|exit
|location=none
|postmile=2.49
|place=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=
}}{{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|name1=Clarksburg Road|city1=Clarksburg}}
|notes=
}}{{CAint|exit
|location=West Sacramento
|lspan=8
|postmile=15.69
|place=North end of state maintenance at West Sacramento city limit
}}{{CAint|exit
|postmile=R21.78
|exit=
|road={{Jct|state=CA|US|50|name1=Capital City Freeway|city1=San Francisco|city2=Sacramento}}
|notes=Interchange; former I-80; US 50 exit 3
}}{{CAint|exit
|postmile=21.84
|exit=
|road=To Capitol Mall (SR 275, Tower Bridge Gateway)
|notes=Interchange; former US 40 / US 99W
}}{{CAint|exit
|postmile=22.06
|exit=
|road=West Capitol Avenue
|notes=Former US 40 / US 99W
}}{{CAint|exit
|postmile=22.68
|exit=
|road=Sacramento Avenue, Kegle Drive
|notes=Sacramento Avenue was former SR 16 east
}}{{CAint|exit
|postmile=23.47
|exit=
|road=Sunset Avenue – Woodland
|notes=Former SR 16 west
}}{{CAint|exit
|postmile=24.05
|exit=
|road={{Jct|state=CA|I|80|I|5|to2=1|location1=Reno|city2=San Francisco}}
|notes=Interchange; former I-880; I-80 exit 83
}}{{CAint|exit
|postmile=24.05
|exit=
|road=Reed Avenue
|notes=Continuation beyond I-80
}}{{Jctbtm|col=6|keys=concur,incomplete}}
1. ^{{cite web | url=http://www.dot.ca.gov/hq/traffops/engineering/trucks/routes/restrict-list.htm | title=Special Route Restrictions | publisher=Caltrans | accessdate=2014-07-28}}
2. ^{{cite news|url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/04/23/BAGGPPE0TL3.DTL|title=Author David Halberstam killed in Menlo Park|work=San Francisco Chronicle|last=Coté|first=John |date=April 23, 2007 |accessdate=23 April 2007}}
3. ^{{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}}
4. ^{{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|website=90(2.3c1).pdf|publisher=CalTrans|accessdate=12 June 2016|pages=1–2|date=May 21, 2003}}
5. ^{{CAFESystem}}
6. ^{{FHWA NHS map|region=californianorth|accessdate=October 9, 2017}}
7. ^{{FHWA NHS}}
8. ^{{CA scenic}}
9. ^{{Caltrans scenic|accessdate=October 9, 2017}}
10. ^{{Caltrans scenic info}}
11. ^{{cite web|title=Mid-State Tollway|url=http://www.dot.ca.gov/hq/paffairs/about/toll/midstate.htm|publisher=CalTrans|accessdate=12 June 2016}}
12. ^{{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}}
13. ^{{Cite web|url=http://www.dot.ca.gov/d4/84isabelwidening/docs/sr84_public-information-meeting_5-26-2016.pdf|title=Isabel Widening Information|last=|first=|date=|website=|archive-url=|archive-date=|dead-url=|access-date=}}
14. ^1 {{Caltrans bridgelog|date=July 2007}}
15. ^California Department of Transportation, All Traffic Volumes on CSHS, 2003, 2005, and 2006
16. ^California Department of Transportation, California Numbered Exit Uniform System, SR-84 Northbound and SR-84 Southbound, accessed February 2008
17. ^1 Indicates that the postmile represents the distance along US 101 rather than SR 84.
18. ^1 Indicates that the postmile represents the distance along I-880 rather than SR 84.
19. ^1 Indicates that the postmile represents the distance along SR 238 rather than SR 84.
20. ^1 Indicates that the postmile represents the distance along I-680 rather than SR 84.

See also

  • {{portal-inline|California Roads}}

References

{{reflist|30em}}

External links

{{commons category|California State Route 84}}{{Attached KML|display=inline,title}}
  • California @ AARoads - State Route 84
  • Caltrans: Route 84 highway conditions
  • Caltrans: Mid-State Tollway
  • California Highways: SR 84
  • Live Toll Prices for Dumbarton Bridge

7 : State highways in California|San Francisco Bay Area freeways|State Scenic Highway System (California)|Roads in Alameda County, California|Roads in San Mateo County, California|Roads in Solano County, California|Roads in Yolo County, California
随便看

　

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

　

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间：2024/11/11 23:52:38