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U.S. Route 101 Bypass
U.S. Route 101 Bypass
Location	San Jose–San Francisco
Existed	1937–1939

U.S. Route 101
U.S. Route 101
Location	San Jose–San Francisco
History	1926–1937, 1939–1964

State Route 82
State Route 82
El Camino Real
	SR 82 highlighted in red
Route information
	Maintained by Caltrans
Length	42.266 mi (68.021 km) Part of SR 82 from I-880 to US 101 was relinquished in mid-2013 and is no longer included in the route.
Major junctions
South end	I-880 in San Jose (State Maintenance)
	SR 85 in Mountain View; SR 84 in Redwood City; SR 92 in San Mateo; I-380 in San Bruno;
North end	I-280 in San Francisco
Location
Country	United States
State	California
Counties	Santa Clara, San Mateo, San Francisco
Highway system
	State highways in California; Interstate; US; State; Scenic; History; Pre‑1964; Unconstructed; Deleted; Freeways;

State Route 82 (SR 82) is a state highway in the U.S. state of California that runs from Interstate 880 (I-880) in San Jose to I-280 in San Francisco following the San Francisco Peninsula. It is the spinal arterial road of the peninsula and runs parallel to the nearby Caltrain line along much of the route. For much of its length, the highway is named El Camino Real and formed part of the historic El Camino Real mission trail. It passes through and near the historic downtowns of many Peninsula cities, including Burlingame, San Mateo, Redwood City, Menlo Park, Palo Alto, Mountain View, Sunnyvale, and Santa Clara, and through some of the most walkable and transit-oriented neighborhoods in the region.^[2]

Route description

At its south end SR 82 starts as The Alameda at I-880 in San Jose.^[3] Once it enters Santa Clara, it bends north-east around Santa Clara University and onto El Camino Real, where it continues for the remainder of its trip up the San Francisco Peninsula, paralleling the Caltrain corridor. SR 82, generally called "El Camino" by local residents, runs through a number of cities on the Peninsula, including Palo Alto (passing by Stanford University), San Carlos, San Mateo, Burlingame, and Millbrae, and it is a central artery of the Peninsula communities through which it passes.

In Daly City, SR 82 becomes Mission Street, connecting with San Francisco's Mission Street, but then quickly flows onto San Jose Avenue, crossing Alemany Boulevard, and terminating at I-280.

SR 82 takes an inland course paralleling US 101. The entire route is at street level with at least four lanes of traffic; no portions of it exist as a freeway, although the route is occasionally a divided highway. The Bayshore Freeway and I-280 tend to provide faster alternatives than Route 82 even during traffic jams on those freeways.

From 1964 to 1968, SR 82 continued past its current end north on Alemany Boulevard to Bayshore Boulevard in San Francisco (see below).

Prior to 2013, SR 82 continued past its current south end on The Alameda, becoming Santa Clara Street in Downtown San Jose^[4] then turning south on Montgomery Street (southbound) / Autumn Street (northbound); then it turned east on San Carlos Street It turned south on Market Street, which becomes First Street and then Monterey Highway. It followed Monterey Highway until it turned east briefly on Blossom Hill Road, where it ended at US 101. This relinquished segment south of I-880 within San Jose is legally no longer a state highway, but the state's Streets and Highways Code mandates that the City of San Jose is still required to maintain "signs directing motorists to the continuation of Route 82" and "ensure the continuity of traffic flow" on this segment.^[3]^[4] Signs along US 101, I-280, and SR 87 where these relinquished segments intersect still have SR 82 shields. Though as of 2017, certain signs with SR 82 shields have been removed along US 101 near Blossom Hill Road and Capitol Expressway.

SR 82 is part of the National Highway System,^[5] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.^[6]

History

Originally a segment of US 101 (and before that, the historic El Camino Real), the highway became completely inadequate for the needs of traffic with the rapid growth of the San Francisco Bay Area after World War II, including urbanization of the towns along its path. The Bayshore Highway to the east was originally built as "Bypass (BYP) US 101" and was upgraded to a freeway in 1937. With this upgrade, the original US 101 route was transferred to the Bayshore Freeway, and El Camino Real became US 101 BYP, but in response to protests, the switch in designations was reversed two years later, in 1939, and the Bayshore Freeway remained US 101 BYP until 1964.^[7]

In 1964, US 101 was moved again onto the Bayshore Freeway, and its former alignment on El Camino Real became SR 82. It was defined as two portions: From Route (US) 101 near Ford Road south of San Jose to Route (US) 101 in San Francisco (which today corresponds to the Alemany Maze), and from Route (US) 101 near Alemany Boulevard to Route (SR) 87 (current unconstructed SR 230) in San Francisco. In 1968, the portions from I-280 (at current SR 82) to US 101 and from SR 101 to SR 87 were transferred to I-280. SR 87 was then deleted north of SR 237 in 1980, and is only constructed south of US 101,^[4] and SR 82 today is designated as part of El Camino Real.

In 2013, SR 82 was relinquished south of I-880 through San Jose.^[4] However, the state's Streets and Highways Code states that the City of San Jose is still required to "ensure the continuity of traffic flow on the relinquished former portion of Route 82" along The Alameda into downtown San Jose, and from there along Monterey Road to its former terminus at Blossom Hill Road and US 101. The city also has the further option to apply to make this segment a business route.^[3]^[4]

Grand Boulevard Initiative

The Grand Boulevard Initiative is a partnership of nineteen Bay Area transit agencies and municipalities that operate or manage various portions of the route. Although El Camino Real is ultimately under the stewardship of Caltrans, the organization nevertheless sponsors aesthetic and infrastructural improvements along the corridor and its neighboring parcels in order to revitalize the streetscape and promote density and more walkable and transit-oriented development.

Major intersections

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 to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).^[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

County	Location	Postmile ^[1]^[8]^[9]	Destinations	Notes
Santa Clara SCL R0.00-26.37	San Jose	R0.00^[a]	Silver Creek Valley Road	Continuation beyond US 101
		R0.00^[a]	US 101 (Bayshore Freeway) – San Francisco, Los Angeles	Interchange; original south end of SR 82; US 101 exit 378
		R0.36^[a]	Monterey Road, Blossom Hill Road (CR G10), Cottle Road	Interchange
		2.81^[a]	Capitol Expressway (CR G21)	Interchange
		6.06^[a]	CR G8 (Alma Avenue)
		6.90^[a]	I-280 (Sinclair Freeway)	Interchange; I-280 north exit 2, south exit 2A
		R7.31^[a]	San Carlos Street, Market Street
		R7.72^[a]	SR 87 (Guadalupe Parkway)	Interchange; SR 87 north exit 6, south exit 6A
		R8.08^[a]	Bird Avenue, San Carlos Street
		R8.61^[a]	Santa Clara Street
		9.91	I-880 (Nimitz Freeway) – Oakland, Santa Cruz	Interchange; south end of state maintenance; I-880 exit 2; former SR 17
	Santa Clara	11.38	De la Cruz Boulevard, Coleman Avenue to US 101	Interchange
			CR G4 (San Tomas Expressway)
		14.30	Lawrence Expressway (CR G2)	Interchange
	Sunnyvale	17.04	Mathilda Avenue	Former SR 85
	Mountain View	18.84	SR 85 – San Francisco, Cupertino, Santa Cruz	Interchange; SR 85 exits 22A-B
	Mountain View	19.13	SR 237 east / Grant Road – Milpitas	SR 237 exit 1A
	Mountain View–Los Altos line	21.84	San Antonio Road
	Palo Alto	24.04	CR G3 (Page Mill Road to Oregon Expressway)
	Palo Alto	25.88	Palm Drive, University Avenue – Stanford University, Palo Alto Caltrain Station	Interchange
San Mateo SM 0.00-25.15	Menlo Park	0.77	Santa Cruz Avenue	No left turns from SR 82
	Atherton	1.89	Atherton Avenue
	Redwood City	3.44	SR 84 (Woodside Road) / Main Street – Woodside	Interchange
	San Carlos	6.57	Holly Street
	Belmont	7.69	Ralston Avenue	Former Legislative Route 214
	San Mateo	9.33	Hillsdale Boulevard	Interchange
	San Mateo	10.55	SR 92 – San Mateo Bridge, Hayward, Half Moon Bay	Interchange; SR 92 exit 12A
	Burlingame	12.96	Peninsula Avenue
	Millbrae	15.95	Millbrae Avenue
	San Bruno	18.60	San Bruno Avenue
	San Bruno	18.96	I-380 to US 101 / I-280 – San Francisco International Airport, San Jose, Daly City, San Francisco	Interchange; I-380 east exit 5, west exit 5C
	South San Francisco	21.91	Hickey Boulevard
	Colma		Serramonte Boulevard
	Daly City	24.85	John Daly Boulevard, Hillside Boulevard
	Daly City	24.93	Mission Street
City and County of San Francisco SF 0.00-R0.21			Alemany Boulevard	Former SR 82 north; no left turn from SR 82 south to Alemany Boulevard
		R0.21	I-280 north – San Francisco Civic Center, Bay Bridge	Interchange; northbound exit and southbound entrance; no direct access to I-280 south; I-280 south exit 50
		R0.21	San Jose Avenue	Continuation beyond I-280
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Incomplete access Route transition

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Postmiles are measured from SR 82's original southern end at US 101, before the segment south of I-880 was deleted and relinquished to local control. However, the City of San Jose is still required under the California Streets and Highways Code to "ensure the continuity of traffic flow on the relinquished former portion of Route 82" with the further option to apply "for approval of a business route designation".

References

^ ^a ^b ^c California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on September 5, 2015. Retrieved June 30, 2015.
^ Jarrett Walker (November 14, 2014). "Silicon Valley: bus rapid transit that's faster than driving?". Human Transit. Retrieved June 22, 2015.
^ ^a ^b ^c California State Legislature. "Streets and Highways Code Section 300-635". Sacramento: California State Legislature. Archived from the original on October 6, 2014. Retrieved April 10, 2016. Section 382: Route (SR) 82 is from Route (I) 880 in San Jose to Route (Interstate) 280 in San Francisco. The relinquished former portion of Route 82 within the City of San Jose is not a state highway ... for the relinquished former portion of SR 82, the City of San Jose shall maintain within its jurisdiction signs directing motorists to the continuation of Route 82 and shall ensure the continuity of traffic flow on the relinquished former portion of SR 82. The city may apply to the department for approval of a business route designation.
^ ^a ^b ^c ^d ^e "California Highways (www.cahighways.org): Routes 81 through 88". California Highways. Retrieved 27 January 2014.
^ Federal Highway Administration (March 25, 2015). National Highway System: San Francisco–Oakland, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 10, 2017.
Federal Highway Administration (March 25, 2015). National Highway System: San Jose, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 10, 2017.
^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
^ Oakland Tribune, October 1, 1939: "The Pacheco Pass road, a good connection between coast and inland routes, is reached over pavement via U.S. 101 or U.S. 101 Bypass to San Jose..."
^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006