"CA 52" redirects here. For the congressional district, see California's 52nd congressional district.
State Route 52
State Route 52 highlighted in red
Route information
Maintained by Caltrans
Length
17.222 mi[1] (27.716 km)
Existed
1964–present
Tourist routes
SR 52 through Mission Trails Regional Park[2]
Major junctions
West end
I-5 in San Diego
Major intersections
I-805 in San Diego
SR 163 in San Diego
I-15 in San Diego
SR 125 in Santee
East end
SR 67 in Santee
Location
Country
United States
State
California
Counties
San Diego
Highway system
State highways in California
Interstate
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
← SR 51
→ SR 53
State Route 52 (SR 52) is a state highway in San Diego County, California, that extends from La Jolla Parkway at Interstate 5 (I-5) in La Jolla, San Diego, to SR 67 in Santee. It is a freeway for its entire length and serves as a major east–west route through the northern part of the city of San Diego. The road connects the major north–south freeways of the county, including I-5, I-805, SR 163, I-15, SR 125, and SR 67. SR 52 passes north of the Rose Canyon Fault before traversing Marine Corps Air Station Miramar (MCAS Miramar). East of Santo Road and west of SR 125, the highway goes through Mission Trails Regional Park, a large open preserve. SR 52 is also known as the Soledad Freeway and the San Clemente Canyon Freeway.
Plans for a route between La Jolla and Santee date from 1959, and SR 52 was officially designated in the 1964 state highway renumbering. Construction began in 1966 at the I-5 interchange with Ardath Road leading to La Jolla. It continued with the building of San Clemente Canyon Road, which was later widened to become SR 52. The freeway was completed east to I-805 in 1970, and was built in two stages from there to Santo Road east of I-15; the last phase was completed in 1988.
The freeway east of Santo Road encountered delays from environmentalists over the endangered least Bell's vireo, a songbird which faced habitat destruction, as well as those concerned with the destruction of homes and businesses for the freeway right-of-way. The extension to Mission Gorge Road opened in 1993, and SR 52 was completed to SR 125 in 1998. Funding issues delayed the completion of the entire route until 2011, more than fifty years after construction began; until then, the city of Santee faced traffic snarls. A widening project was completed in 2007 between Santo Road and Mast Boulevard; further expansion has been put on hold due to state budget concerns.
^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.
^Cite error: The named reference EastCounty was invoked but never defined (see the help page).
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Global Information
SR 52 through Mission Trails Regional Park[2]
I-5 in San Diego
SR 67 in Santee
