California State Route 35

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State Route 35 marker

State Route 35
Skyline Boulevard
SR 35 highlighted in red
Route information
Defined by Streets and Highways Code § 335
Maintained by Caltrans
Length 54.056 mi[2] (86.995 km)
The length of SR 35 is broken into pieces and do not reflect overlaps.[1]
Major junctions
South end SR 17 near Redwood Estates
North end SR 1 in San Francisco
Counties Santa Clara, Santa Cruz, San Mateo, San Francisco
Highway system
SR 34 SR 36

State Route 35 (SR 35) in the U.S. state of California, generally known as Skyline Boulevard, is a two-lane road running mostly along the ridge of the Santa Cruz Mountains from Highway 17 in Santa Clara County to San Francisco at State Route 1. Because of its high elevation and location, it is one of the few places on the southern portion of the San Francisco Peninsula from which the San Francisco Bay and the Pacific Ocean are both visible at the same time. It also provides scenic views of the Silicon Valley Metropolitan Area.

It was originally designated State Route 5, but this was changed with the creation of Interstate 5 in 1964, to avoid confusion.

Skyline Boulevard stretches through the Santa Cruz Mountains, here near Palo Alto
SR 35 briefly becomes a divided highway west of Daly City.

Route description[edit]

The highway begins at the junction of Summit Road and State Route 17, at Patchen Pass. It bears the name Skyline Boulevard for a majority of its route along the ridge of the Santa Cruz Mountains to the west of Silicon Valley, passing cities such as San Jose, Saratoga, and Palo Alto. The southern portion of the road, starting at Highway 17 and ending at Black Road, is mostly a narrow and winding country road without a double-yellow line. From Black Road going north the road has been upgraded. The road reaches its highest elevation near Sanborn Skyline County Park at about 3,000 ft (914 m). The ridge that the road follows forms the border between Santa Cruz and Santa Clara counties. However, the boundary is so irregular that the road weaves in and out of the two counties.

The ridgetop portion of the route ends at the junction with State Route 92,[3] because this northern area of the Santa Cruz Mountains is a protected watershed owned by the San Francisco Water Department. Highway 35 is co-routed with SR 92 for 2 miles (3 km) east, descending towards Crystal Springs Reservoir, which it crosses on a causeway, and then joins Interstate 280 northbound for 6 miles (10 km). However, on the southbound side, Route 35 exists as a separate road to the west of the freeway between Bunker Hill Dr. and Route 92, as there is no connector road between 280 South and 92 West.

Route 35 departs from 280 at the southern end of San Bruno, running to the west of the freeway, regaining the ridgetop separating South San Francisco and Daly City from Pacifica.

It crosses State Route 1 in Daly City and in San Francisco, Skyline Boulevard ends and the highway briefly continues along Sloat Boulevard until it reaches its terminus when it intersects Highway 1 again at 19th Avenue.

SR 35 is part of the California Freeway and Expressway System,[4] but is not 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] SR 35 is eligible for the State Scenic Highway System;[7] however, only the portion from the Santa Cruz–Santa Clara County line to the SR 92 junction is officially designated as a scenic highway by the California Department of Transportation,[8] 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.[9]

Recreational use[edit]

The popular Skeggs Point turnout north of SR 84.

Because of its scenic views and winding roadway, Skyline Boulevard and surrounding roads see substantial recreational motoring and bicycling use. Many sports cars and motorcycles can be found congregating near the intersections with State Route 9 and State Route 84, particularly on weekends. Mountain bikers are also commonly found at the many trailheads along the road.

Several public open spaces border on Skyline Boulevard, including Sanborn County Park, Windy Hill, and the Purisima Open Space; both the latter are parts of the Midpeninsula Regional Open Space District. Numerous hiking trails originate from parking lots off Skyline in these open spaces.

Whenever there is snow on the road's higher elevations, many people take their families up to see and play in the snow, and therefore, many of the parking lots at regional parks are packed with cars.

Other landmarks[edit]

For most of the route, State Route 35 offers vistas of both Silicon Valley's skyline, and also the Pacific Ocean. The route passes through many of the wildlife refuges along the ridge of Silicon Valley and other parks:

A number of streams originate near Skyline Boulevard, flowing to both Pacific Ocean and the Bay. Among the bayside streams are San Francisquito Creek, Redwood Creek, and San Bruno Creek.


As old highway maps show, State Route 35 was originally designated State Route 5. The number was changed in the 1964 renumbering. The original state route 35 was located in southern California and ran north to south from State Route 22 to U.S. 99, first along Los Alamitos Blvd. going north which turns into Norwalk Blvd. The highway continued west on Centralia Road and then north along Pioneer Blvd. until hitting San Antonio drive at Rosecrans Ave. San Antonio Dr. would turn back into Norwalk blvd. and Route 35 would continue turning into Old Mill Road at Beverly Blvd. Route 35 would wind through Rose Hills and Avocado Heights as Workman Mill Rd. and would then turn into Puente Ave. at Valley Blvd. and continue to Route 99 where Route 35 ended at the border of Baldwin Park and West Covina. On February 10th, 2017 a huge washout washed away SR 35, 5 miles south of the junction with State Route 9 to the junction of the same route.

Major intersections[edit]

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 an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[2] 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
Destinations Notes
Santa Clara
SCL R0.05-0.23
R0.05 Summit Road Continuation beyond SR 17
R0.05 SR 17 – San Jose, Santa Cruz Interchange; south end of SR 35
Santa Cruz
SCR 0.23-7.68
2.87 Bear Creek Road
Santa Clara
SCL 7.68-17.12
Saratoga Gap 14.10 SR 9 – Big Basin, Boulder Creek, Santa Cruz, Saratoga
San Mateo 3.21 Alpine Road, Page Mill Road
Woodside 10.52 SR 84 (La Honda Road) – Woodside, La Honda
5.19[N 1]
SR 92 west – Half Moon Bay, Santa Cruz South end of SR 92 overlap
7.19[N 1]
SR 92 east to I-280 – Belmont, San Mateo, San Francisco, San Jose North end of SR 92 overlap
R12.32[N 2]
I-280 south (Junipero Serra Freeway) / Skyline Boulevard, Bunker Hill Drive – San Jose Interchange; south end of I-280 overlap; I-280 exit 34
South end of freeway on I-280
Hillsborough R14.22[N 2] 36 Black Mountain Road, Hayne Road
R17.16[N 2] 39 Trousdale Drive – Burlingame
Millbrae R17.92[N 2] 40 Millbrae Avenue Northbound exit and southbound entrance
R18.52[N 2] 41 Larkspur Drive, Millbrae Avenue Southbound exit and northbound entrance
North end of freeway on I-280
San Bruno R19.28[N 2]
I-280 north (Junipero Serra Freeway) – San Francisco Interchange; north end of I-280 overlap; northbound exit and southbound entrance; I-280 north exit 41
Pacifica South end of freeway
Daly City R28.69 54 SR 1 to I-280 – San Jose, San Francisco, Pacifica, Santa Cruz Signed as exits 54A (north) and 54B (south); SR 1 exits 508A-B
North end of freeway
30.83 John Daly BoulevardWestlake District
City and County of San Francisco
SF 0.00-3.16
Great HighwayBeach Serves the San Francisco Zoo
1.83 Sloat Boulevard
2.12 Sunset Boulevard Interchange
3.16 SR 1 (19th Avenue) – San Mateo, Golden Gate Park North end of SR 35
3.16 Sloat Boulevard – San Francisco Civic Center Continuation beyond SR 1
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ a b Indicates that the postmile represents the distance along SR 92 rather than SR 35.
  2. ^ a b c d e f Indicates that the postmile represents the distance along I-280 rather than SR 35.

See also[edit]


  1. ^ This route is broken into pieces, and the length does not reflect the overlaps that would be required to make the route continuous.
  2. ^ a b c California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015. 
  3. ^ National Atlas of the United States, Hydrologic Units (Watersheds) GIS data Archived 2013-05-04 at the Wayback Machine.
  4. ^ California State Legislature. "Section 250–257". Streets and Highways Code. Sacramento: California State Legislature. Retrieved June 9, 2017. 
  5. ^ Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 15, 2017. 
  6. ^ 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. 
  7. ^ California State Legislature. "Section 260–284". Streets and Highways Code. Sacramento: California State Legislature. Retrieved June 9, 2017. 
  8. ^ California Department of Transportation (September 7, 2011). "Officially Designated State Scenic Highways and Historic Parkways". Sacramento: California Department of Transportation. Retrieved October 15, 2017. 
  9. ^ California Department of Transportation (2012). Scenic Highway Guidelines (PDF). Sacramento: California Department of Transportation. p. 5. Retrieved June 8, 2017. 
  10. ^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation. 
  11. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
  12. ^ California Department of Transportation, California Numbered Exit Uniform System, State Route 35 Freeway Interchanges, Retrieved on 2009-02-05.
  13. ^ California Department of Transportation, California Numbered Exit Uniform System, I-280 Northbound and I-280 Southbound, Retrieved on 2009-02-05.

External links[edit]

Route map: Google

KML is from Wikidata