California State Route 35

The highway begins at the junction of Summit Road and State Route 17, at Patchen Pass. While SR 17 traverses the pass outright, SR 35 primarily is on the ridgeline. The portion of SR 35 from SR 17 to Bear Creek Road is called Summit Road. The highway then merges with Bear Creek Road for a few miles before becoming Skyline Boulevard. 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 by 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. However, the road has been upgraded to 2 lanes beginning at Black Road, and remains in this configuration until it merges with Interstate 280 north of California State Route 92. The road reaches its highest elevation near Sanborn Skyline County Park at about 3,000 ft (914 m). The road passes through the small community of Sky Londa where it intersects State Route 84. 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,[4] 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,[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 35 is eligible for the State Scenic Highway System;[8] 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,[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]

Recreational use

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.

The original road called 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 continue with that street name until 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. where it would continue to its end at U.S. 99 at the border of Baldwin Park and West Covina.

The current State Route 35, Skyline Boulevard, was originally designated State Route 5. The number was changed in the 1964 renumbering in California. On February 10, 2017, a huge washout washed away a 220-foot stretch of SR 35 about five miles south of the junction with State Route 9. Repairs were completed and the section of road re-opened January 9, 2018.[11]

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][12][13]	Exit [14][15]	Destinations	Notes
Santa Clara SCL R0.05-0.23	Lexington Hills	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
	​	23.04 5.19[N 1]		SR 92 west – Half Moon Bay, Santa Cruz	South end of SR 92 overlap
	​	7.19[N 1] L21.72		SR 92 east to I-280 – Belmont, San Mateo, San Francisco, San Jose	North end of SR 92 overlap
	​	L22.76 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] R23.04		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 Boulevard – Westlake District
City and County of San Francisco SF 0.00-3.16		​		Great Highway – Beach	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       Concurrency terminus       Incomplete access

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Wikimedia Commons has media related to California State Route 35.

• Caltrans: State Route 35 highway conditions
• Caltrans Traffic Conditions Map
• California Highway Patrol Traffic Incidents
• AARoads - State Route 35
• California Highways: SR 35
• Skyline Motorcycle Map at SundayMorningRides.com