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State Route 15 in the U.S. State of California is the seamless 5.59-mile (9.00 km) freeway continuation of Interstate 15 past its southern terminus at Interstate 8 in San Diego, California to the Interstate 5 junction 12 miles from the Mexican border. The Route 15 designation is also used by Caltrans for the full length of I-15.
Route description SR 15 continues seamlessly past the southern terminus of I-15 at I-8 in San Diego. The route interchanges with State Route 94 and Interstate 805 and terminates at Interstate 5 south of Downtown San Diego. On the northbound conversion to I-15 at I-8 there is no "End SR 15" sign. History From 1934 to the 1964 renumbering, State Route 15 was assigned to a route from San Pedro to Pasadena. This was renumbered State Route 7 in 1964 (to avoid conflicts with I-15) and Interstate 710 in 1984. Present SR 15 was signed after the creation of I-15 in 1968. Since I-15's terminus was at I-8, SR 15 was signed mostly along 40th Street and Wabash Boulevard in San Diego to its merge with I-5. The freeway conversion lagged for years and was not completed until January 2001. For this reason the freeway is often referred to as the 40th Street Freeway. Redesignation of SR 15 as I-15 will eventually occur when the freeway's interchange with SR 94 is updated to Interstate standards. The interchange currently has left-exits and blind merges, and is due to be updated with a long-awaited widening of SR 94 in 2008. At that time SR 15 will be resigned as part of I-15. The remaining portion of SR 15 conforms with Interstate standards. State law Legal definition of Route 15: California Streets and Highways Code, Chapter 2, Article 3, Section 315 Exit list Note that there is a postmile equation; SD 0.94 is the same point as SD 1.48. | |||||||||||||||||||||||||||||||
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