California State Route 259

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State Route 259 marker

State Route 259
SR 259 highlighted in red
Route information
Defined by Streets and Highways Code § 559
Maintained by Caltrans
Length1.48 mi[1] (2.38 km)
Existed1999[citation needed]–present
Major junctions
South end I-215 in San Bernardino
North end SR 210 in San Bernardino
CountiesSan Bernardino
Highway system
SR 255SR 260

State Route 259 (SR 259) is a short unsigned state highway in the U.S. state of California that serves as a freeway connector between Interstate 215 and State Route 210 in San Bernardino. It has one complete exit (Highland Avenue) and one partial exit (E Street, northbound only). Presently the route is signed as “To SR 210 East” on the northbound portion of the freeway[2] and is unsigned on the southbound portion.

Route description[edit]

SR 259 splits off from I-215 as a full freeway and continues north, interchanging with Highland Avenue. SR 259 then turns east and has a partial interchange with E Street before merging with SR 210. SR 259 thus provides a route for traffic to move between I-215 northbound and SR 210 eastbound as well as from SR 210 westbound to I-215 southbound; the interchange between SR 210 and I-215 does not provide these movements.[3]

Signage along the route either mention I-215 south or SR 210 east instead of SR 259, including the exits from SR 210[4] and I-215,[5] respectively, the freeway entrances from Highland Avenue,[6][7] and an overhead guide sign along northbound SR 259.[8]

SR 259 is part of the California Freeway and Expressway System,[9] and is a freeway for its entire length,[3] and is part of the National Highway System,[10] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[11]


The portion of SR 30 between I-215 and SR 259 did not exist in the 1960s-1970s, and traffic used SR 259, which was then designated as SR 30.

Exit list[edit]

The entire route is in San Bernardino, San Bernardino County.

0.000.00 I-215 south (San Bernardino Freeway) – Los Angeles, RiversideSouthbound exit and northbound entrance; former I-15E south; south end of SR 259; I-215 exit 45A northbound
0.000.0045Base Line StreetSouthbound exit and northbound entrance, exit number follows I-215
1.452.331A To I-215 north / Highland Avenue (SR 18 Bus.,SR 210 Bus.) – BarstowSigned as exit 1B southbound; I-215 south via exit 46B
1.502.411B To SR 210 west / E Street – PasadenaNorthbound exit and southbound entrance; former SR 206; I-210 exit 75 eastbound
1.502.4175B SR 210 east (Foothill Freeway) – Highland, Running SpringsNorthbound exit and southbound entrance; north end of SR 259; former SR 30 east; I-210 exit 75B westbound
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  2. ^ "To SR 210 east (SR 259 north) reassurance marker". Google Street View. Google. Retrieved April 14, 2019.
  3. ^ a b San Bernardino County Road Atlas (Map). Thomas Brothers. 2008.
  4. ^ "Westbound SR 210 Exit 75B: To I-215 south". Google Street View. Google. Retrieved April 14, 2019.
  5. ^ "Northbound I-215 Exit 16A: To SR 210 east". Google Street View. Google. Retrieved April 14, 2019.
  6. ^ "Southbound I-210 (SR 259) freeway entrance from Highland Avenue". Google Street View. Google. Retrieved April 14, 2019.
  7. ^ "Eastbound I-210 (SR 259) freeway entrance from Highland Avenue". Google Street View. Google. Retrieved April 14, 2019.
  8. ^ "Northbound SR 259 Exit 1A: Highland Avenue". Google Street View. Google. Retrieved April 14, 2019.
  9. ^ "Article 2 of Chapter 2 of Division 1 of the California Streets and Highways Code". Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  10. ^ Federal Highway Administration (March 25, 2015). National Highway System: Riverside–San Bernardino, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 3, 2017.
  11. ^ 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.
  12. ^ a b Warring, KS (January 12, 2009). "State Route 259 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved September 1, 2014.

External links[edit]

Route map:

KML is from Wikidata