California State Route 185
|Defined by Streets and Highways Code § 377 and 485|
|Maintained by Caltrans|
|Length||10.826 mi (17.423 km)|
Length of SR 77 is 0.353 mi (1 km)
|South end||SR 92 / SR 238 in Hayward|
|North end||I-880 in Oakland|
State Route 185 (SR 185) is a state highway in the San Francisco Bay Area of the U.S. state of California. It runs along sections of Mission Boulevard in Hayward, East 14th Street in San Leandro and International Boulevard in Oakland. At its south end, SR 185 connects with State Routes 92 and 238 in Hayward. At the north end of SR 185 at International Boulevard and 42nd Avenue, the short State Route 77 (SR 77) heads southwest to Interstate 880.
The south end of SR 185 is defined to be at State Route 92 (Jackson St) in Hayward. However, state control of the segment in Hayward south of A Street was relinquished to the city in 2010. The City of Hayward has since re-configured the segment of Mission Boulevard from A Street south to SR 92 as part of the one-way pair known as the "Hayward Loop" (part of State Route 238). Traffic in the Hayward Loop travels one-way northbound on Foothill Boulevard, and one-way southbound on A Street and Mission Boulevard. Due to the lack of signage around the loop after it was completed, it is unclear whether this loop is also part of SR 185 or not (under California Streets and Highways Code § 485, the city is only required to maintain "signs directing motorists to the continuation of Route 185").
The north end of SR 185 lies just northwest of High Street in Oakland at 42nd Avenue, where the short State Route 77 heads southwest to Interstate 880. SR 77 was originally signed as SR 185 from SR 185's terminus to I-880; as of August 2008, Caltrans had erected SR 77 shields in place of SR 185 shields as reassurance markers and freeway entrance signage at SR 77's two onramps. SR 77 was originally a freeway; however, as of 2011, the interchange with I-880 had been converted to consist of intersections, as part of the I-880 High Street Seismic Retrofit Project, therefore SR 77 can no longer be considered a freeway.
The 0.35 mi (0.72 km) State Route 77 is part of a planned 13.8 mi (22.2 km) route, which would have run from I-880 northeast past SR 185 to Interstate 580 near High Street. There, it would have turned northwest on I-580 toward Park Boulevard, splitting there to head northeast and north to State Route 24 near Lafayette.
Only the part east of unbuilt State Route 93 west of Moraga is part of the California Freeway and Expressway System; this does not include the constructed part, which was built as a short freeway. SR 185 is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.
SR 185 traverses a once-deadly stretch of what was then called East 14th Street in East Oakland. For many years it was a scene of prostitution, drug dealings, and murders, causing negative synonymity in Oakland. Thus in 1996 the city council changed the name to International Boulevard, including the portion maintained by the city between Lake Merritt and 42nd Avenue, and the portion under SR 185's designation. The bad reputation continued until California Highway Patrol stepped in (SR 185 falls under CHP jurisdiction) to curtail the crime. Note that despite its status as a major arterial, the roadway's reputation generally does not apply in San Leandro: the route retains the name East 14th Street from the Oakland-San Leandro border toward its southern terminus.
In 2012, the California legislature relinquished control of SR 185 in Downtown Hayward between SR 92/SR 238 and A Street to local control.[to whom?] In March 2013, this segment became part of a one way circulation known as the "Hayward Loop", designed to improve traffic flow between SR 92, SR 185 and SR 238.
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 ( ). Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Alameda County.
|Hayward||0.00||SR 92 (Jackson Street) / SR 238 south (Mission Boulevard) – San Mateo, San Jose||South end of SR 185 and 'Hayward Loop'|
|0.38||A Street (SR 238)||South end of state maintenance; north end of "Hayward Loop"; no left turn from SR 185 south; traffic from SR 238 joins in from A Street|
|San Leandro||1.99||I-238 to I-580 / I-880 / Lewelling Boulevard – Stockton, Oakland|
|5.73||SR 61 (Davis Street) / Callan Avenue|
|8.69||Hegenberger Road, 73rd Avenue|
|42nd Avenue, International Boulevard||North end of SR 185; south end of SR 77|
|0.37[N 1]||East 12th Street, High Street||Southbound exit and northbound entrance|
|0.10[N 1]||I-880 (Nimitz Freeway) – San Jose, Downtown Oakland, Alameda||Northbound exit and southbound entrance; north end of SR 77; north end of SR 185|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Indicates that the postmile represents the distance along SR 77 rather than SR 185.
- 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.
- California Highways: State Route 185
- http://www.i880corridor.com/index.php/high-street Archived March 10, 2012, at the Wayback Machine
- California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
- State Highway Routes, Selected Information - 1994 with 1995 Revisions(PDF) Archived 2012-11-11 at the Wayback Machine
- "Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
- Federal Highway Administration (March 25, 2015). National Highway System: San Francisco, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 16, 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.
- "Archived copy". Archived from the original on 2013-07-02. Retrieved 2013-11-03.CS1 maint: archived copy as title (link)
- California Department of Transportation, All Traffic Volumes on CSHS Archived July 21, 2011, at the Wayback Machine, 2006
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