SR 84 highlighted in red, with the relinquished portions in West Sacramento in pink
Route information
Maintained by Caltrans
Length
96 mi[1] (154 km)
Tourist routes
Niles Canyon Road between SR 238 in Fremont and I-680 near Sunol
Restrictions
Special restrictions[2]
No hazardous material in the Sunol Valley between SR 238 and I-680
No tractor-trailers or vehicles over 16.25 tons on the Ryer Island Ferry. Length restrictions may also apply.
Section 1
West end
SR 1 at San Gregorio
Major intersections
I-280 at Woodside
US 101 from Redwood City to Menlo Park
I-880 from Newark to Fremont
SR 238 in Fremont
I-680 near Sunol
East end
I-580 in Livermore
Section 2
South end
SR 12 in Rio Vista
North end
Near Levee Access Road at the southern city limits of West Sacramento
Location
Country
United States
State
California
Counties
San Mateo, Alameda, Solano, Yolo
Highway system
State highways in California
Interstate
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
← SR 83
→ SR 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–west arterial road running from SR 1 in San Gregorio to Menlo Park, across the Dumbarton Bridge through Fremont and Newark and ending at I-580 in Livermore. 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 in 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.
^Cite error: The named reference bridgelog was invoked but never defined (see the help page).
StateRoute84 (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...
StateRoute 160 (SR 160) is a state highway in the U.S. state of California consisting of two sections. The longer, southern, section is a scenic highway...
following state highways in the U.S. state of California are entirely or partially unconstructed; in other words, their routings have been defined by state law...
StateRoute 1 (SR 1) is a major north–south state highway that runs along most of the Pacific coastline of the U.S. state of California. At 656 miles...
StateRoute 120 (SR 120) is a state highway in the central part of California, connecting the San Joaquin Valley with the Sierra Nevada, Yosemite National...
StateRoute 275 (SR 275) is an unsigned state highway connecting West Sacramento, California and Downtown Sacramento. Since 1996, the highway has been...
highway in the U.S. state of California. It runs along the ridge of the Santa Cruz Mountains from the high point of StateRoute 17 near Lexington Reservoir...
StateRoute 12 (SR 12) is a state highway in the U.S. state of California that travels in an east–west direction from StateRoute 116 in Sebastopol in...
StateRoute 76 (SR 76) is a state highway 52.63 miles (84.70 km) long in the U.S. state of California. It is a much used east–west route in the North County...
StateRoute 99 (SR 99) is a north–south state highway in the U.S. state of California, stretching almost the entire length of the Central Valley. From...
StateRoute 91 (SR 91) is a major east–west state highway in the U.S. state of California that serves several regions of the Greater Los Angeles urban...
StateRoute 126 (SR 126) is a state highway in the U.S. state of California that serves Ventura and Los Angeles counties. The route runs from U.S. Route...
StateRoute 49 (SR 49) is a north–south state highway in the U.S. state of California that passes through many historic mining communities of the 1849...
while the eastern segment is signed as StateRoute 210 (SR 210) to its eastern terminus at I-10. Under the California Streets and Highways Code, the entire...
Highway in the Greater Los Angeles urban area of Southern California. It runs from I-405 and StateRoute 22 (SR 22) in Seal Beach in Orange County to I-210 just...
StateRoute 109 (SR 109) is a short, unsigned state highway in the U.S. state of California. It forms part of University Avenue in San Mateo County between...
StateRoute 24 (SR 24) is a heavily traveled east–west state highway in the U.S. state of California that serves the eastern side of the San Francisco...
StateRoute 60 (SR 60) is an east–west state highway in the U.S. state of California. It serves the cities and communities on the eastern side of the Los...
StateRoute 168 (SR 168) is an east-west state highway in the U.S. state of California that is separated into two distinct segments by the Sierra Nevada...
StateRoute 33 (SR 33) is a north–south state highway in the U.S. state of California. It runs north from U.S. Route 101 in Ventura through the Transverse...
Interstate Highway in the U.S. state of California, connecting San Bernardino, Riverside, and San Diego Counties. The route consists of the southernmost...
state highways in the U.S. state of California that have existed since the 1964 renumbering. It includes routes that were defined by the California State...
StateRoute 198 (SR 198) is an east–west state highway in the U.S. state of California that runs from U.S. Route 101 (US 101) south of King City to Sequoia...
StateRoute 57 (SR 57), also known as the Orange Freeway for most of its length, is a north–south state highway in the Greater Los Angeles Area of the...
signed portion of the route is generally a two-lane highway in its entirety. CaliforniaStateRoute84 (SR 84) is a north–south state highway that runs between...