California State Route 152

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State Route 152

Defined by S&HC § 452, maintained by Caltrans

Length:

104.419 mi^[1] (168.046 km)
(plus about 1.5 mi (2.5 km) on US 101)

History:

State highway in 1916; SR 152 in 1934

West end:

SR 1 in Watsonville

Major
junctions:

US 101 in Gilroy

I-5 near Santa Nella

SR 165 in Los Banos

East end:

SR 99 near Chowchilla

State highways in California (list - pre-1964)
County routes in California (list)
< SR 151		SR 153 >
History - Unconstructed - Deleted - Freeway - Scenic

State Route 152 is a state highway that runs near the latitudinal middle of the U.S. state of California from Watsonville to Route 99 southeast of Merced. Its western portion provides the best access to and from Interstate 5 toward southern California for motorists in or near San Jose.

This route is part of the California Freeway and Expressway System^[2] and is eligible for the State Scenic Highway System^[3].

1 Route description
2 Safety
3 History
4 Additional landmarks
5 Major intersections
6 References
7 External links

[edit] Route description

Route 152 begins near Route 1 as a series of local streets that run through downtown Watsonville, after which it becomes a winding two-lane highway that crosses the Santa Cruz Mountains through the Hecker Pass to reach Gilroy where it is again carried on a series of local streets. It is then overlapped onto to North/South U.S. Route 101 for a small stretch before it separates and returns to heading West/East again.

After exiting the large commercial developments near US 101, Route 152 consists of a single lane in each direction, with narrow shoulders, rain ditches on either side of the road, no center dividers, and posted speed limit of 55 mph (89 km/h), making it prone to head-on collisions. Headlights are required at all times along this portion. This segment is a significant bottleneck for traffic traveling along Route 152 between the Bay Area and the Central Valley. Upon reaching Route 156 near Hollister, the road expands to two lanes in each direction, and climbs and curves and through the mountains of the Diablo Range, crossing them through the Pacheco Pass into the San Joaquin Valley.

Route 152 continues as a four-lane divided expressway, descending along the northern and eastern shore of the massive San Luis Reservoir. The route passes in between the San Luis Dam and the O'Neill Forebay. The route continues east and passes a large Path 15 substation and then meets Interstate 5 as an expressway. It becomes a speed-limited city street while passing through Los Banos before returning to an expressway until its eastern terminus at Route 99. Here, eastbound 152 traffic merges on to southbound 99 a few miles northwest of the city of Madera, and approximately 25 miles (40 km) northwest of Fresno. Motorists wishing to travel north on Route 99 are advised to take Route 233 north through Chowchilla to connect to northbound 99. Another possible northbound route exists by exiting Route 152 at State Route 59, and proceeding directly north to the city of Merced, where Route 59 meets Route 99.

[edit] Safety

Between State Route 156 and Interstate 5, Route 152 lacked any kind of center divider and was the site of numerous head on traffic accidents, many of them fatal. In the 1990s a divider measuring from 3 to 6 feet (1 to 2 meters) tall was erected along the majority of the winding parts of the route from 156 to I-5. The barrier has prevented most head on collisions from happening by preventing cars from crossing the highway and striking oncoming traffic. Instead cars bounce back and hit traffic going the same direction. However, on July 16, 2005 a fatal multi-car head on collision occurred despite the barrier when a pickup went airborne over the center divider. This stretch of road remains one of the most dangerous in the Bay Area. Traffic accidents between Gilroy and Highway 99 before it was a divided highway were so many that it was given the name and known locally as "Blood Alley." (It should be noted that other state routes in the area have also been given this name from time to time.)

On holiday weekends, eastbound Route 152 experiences significant backups at the intersection with State Route 156 caused by motorists who politely but illegally stop to allow cross-traffic to pass. Construction has begun on a fly-by overpass that would eliminate this safety hazard.

[edit] History

The road became popular as a route east during the California Gold Rush. The Butterfield Overland Mail ran along this route from 1858 to 1861. A portion of Route 152 from Bell Station to Pacheco Pass was a toll road from sometime in the 1840s until 1878. In that year, Merced County and Santa Clara County purchased the road. It was eventually upgraded to a state route. Historic references say the portion of the route west of SR33 was named Legislative Route 32 before being designated State Route 152.^[4]^[5]

[edit] Additional landmarks

[edit] Major intersections

Note: Except where prefixed with a letter, postmiles were measured in 1964, based on the alignment as it existed at that time, and do not necessarily reflect current mileage. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

County	Location	Postmile ^[1]^[6]^[7]	Destinations	Notes
Santa Cruz SCR T0.31-8.29	Watsonville	T0.31	SR 1 north – Santa Cruz	Interchange; westbound exit and eastbound entrance
		T1.20	To SR 1 south / Green Valley Road
		T2.50	Freedom Boulevard – Freedom
		T2.80- T2.93	To SR 129 / Main Street – Monterey	Former SR 1 south
		T3.27 0.00	Lincoln Street
Santa Clara SCL 0.00-R35.16		5.03	CR G8 – Morgan Hill
	Gilroy	M9.43	Bus. 101 south (Monterey Road)	West end of Bus. 101 overlap
		M9.78	Bus. 101 north (Monterey Road)	East end of Bus. 101 overlap
		M10.28 101 R7.53	US 101 north / CR G9 (Leavesley Road) – San Jose	West end of US 101 overlap; interchange
		101 R6.08 R9.91	US 101 south – Los Angeles	East end of US 101 overlap; interchange
		12.81	CR G9 (Ferguson Road)
		14.89	CR G7 (Bloomfield Avenue)
			San Felipe Road – Hollister
		R21.98	SR 156 west – Hollister
		R23.41	Casa de Fruta Parkway	Interchange
Merced MER R0.00-R40.95		11.27	SR 33 north – Gustine	West end of SR 33 overlap; interchange
		13.85	I-5 – Sacramento, San Francisco, Los Angeles	Interchange
	Los Banos	21.27	SR 165 (Mercey Springs Road) to I-5 south – Turlock
		R32.37	SR 33 south – Dos Palos, Mendota	East end of SR 33 overlap; interchange
		R40.77- R0.06	SR 59 – Merced	Interchange
Madera MAD R0.00-15.63		R40.77- R0.06	SR 59 – Merced	Interchange
		10.80	SR 233 (Robertson Boulevard) – Chowchilla	Interchange
			Road 16 – Chowchilla
		15.63	SR 99 south – Fresno	Eastbound exit and westbound entrance