California State Route 259

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State Route 259

SR 259 highlighted in red
Route information
Maintained by Caltrans
Length1.48 mi[1] (2.38 km)
Major junctions
South end I-215 in San Bernardino
North end SR 210 in San Bernardino
CountryUnited States
CountiesSan Bernardino
Highway system
SR 255 SR 260

State Route 259 (SR 259) is a short state highway in the U.S. state of California that serves as a freeway connector between I-215 and SR 210 in San Bernardino. It has one complete exit (Highland Avenue) and one partial exit (E Street, northbound only).

Route description

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.[2]

Almost all signage along the route either mention "To I-215 south" or "To SR 210 east" instead of SR 259, including the exits from SR 210[3] and I-215,[4] respectively, the freeway entrances from Highland Avenue,[5][6] and an overhead guide sign along northbound SR 259.[7] Since 2022, Caltrans had erected SR 259 reassurance markers just beyond the start of the entrance ramps from SR 210[8] and I-215.[9]

SR 259 is part of the California Freeway and Expressway System,[10] and is a freeway for its entire length,[2] and is part of the National Highway System,[11] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[12]


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. Prior to its role as a state highway, the route followed by SR 259 formed a portion of the Santa Fe "Kite-Shaped Track" which looped throughout Southern California, including through communities of the eastern San Bernardino Valley.[13]

Exit list

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

I-215 south (San Bernardino Freeway) – Riverside
No access to I-215 north; southern terminus; I-215 north exit 45; former I-15E
45[a]Base Line StreetSouthbound exit and northbound entrance
1.452.331AHighland AvenueSigned as exit 1B southbound
1.502.411BE StreetNorthbound exit and southbound entrance; former SR 206

SR 210 east (Foothill Freeway) – Highland
No access to SR 210 west; northern terminus; SR 210 west exit 75B
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ Exit number follows I-215 rather than SR 259.


  1. ^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  2. ^ a b San Bernardino County Road Atlas (Map). Thomas Brothers. 2008.
  3. ^ "Westbound SR 210 Exit 75B: To I-215 south". Google Street View. May 2022. Retrieved January 25, 2023.
  4. ^ "Northbound I-215 Exit 45: To SR 210 east". Google Street View. August 2022. Retrieved January 25, 2023.
  5. ^ "Southbound I-215 (SR 259) freeway entrance from Highland Avenue". Google Street View. May 2022. Retrieved January 25, 2023.
  6. ^ "Eastbound I-210 (SR 259) freeway entrance from Highland Avenue". Google Street View. April 2022. Retrieved January 25, 2023.
  7. ^ "Northbound SR 259 Exit 1A: Highland Avenue". Google Street View. May 2022. Retrieved January 25, 2023.
  8. ^ "SR 259 reassurance marker on westbound SR 210 Exit 75B ramp". Google Street View. May 2022. Retrieved January 25, 2023.
  9. ^ "SR 259 reassurance marker on northbound I-215 Exit 45 ramp". Google Street View. May 2022. Retrieved January 25, 2023.
  10. ^ "Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  11. ^ 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.
  12. ^ 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.
  13. ^ "USGS San Bernardino North 1954 1955". USGS San Bernardino North 1954 1955 Map 1:24000. Retrieved January 25, 2023.
  14. ^ 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