California State Route 259

State Route 259 (SR 259) is an approximately 1.48-mile (2.38 km) state highway in the U.S. state of California, serving as a freeway connector between I-215 and SR 210 in San Bernardino. It has one complete interchange (Highland Avenue) and one partial interchange (E Street, northbound only).

State Route 259
SR 259 highlighted in red
Route information
Maintained by Caltrans
Length	1.48 mi[1] (2.38 km)
Existed	1968–present
Major junctions
South end	I-215 in San Bernardino
North end	SR 210 in San Bernardino
Location
Country	United States
State	California
Counties	San Bernardino
Highway system
State highways in California Interstate US State Scenic History Pre‑1964 Unconstructed Deleted Freeways
← SR 255 → SR 260

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]

History

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.

mi[14]	km	Exit[14]	Destinations	Notes
0.00	0.00		I-215 south (San Bernardino Freeway) – Riverside	No access to I-215 north; southern terminus; I-215 exit 45; former I-15E
		45[a]	Base Line Street	Southbound exit and northbound entrance
1.45	2.33	1A	Highland Avenue	Signed as exit 1B southbound
1.50	2.41	1B	E Street	Northbound exit and southbound entrance; former SR 206
			SR 210 east (Foothill Freeway) – Highland	No access to SR 210 west; northern terminus; future I-210; SR 210 west exit 75B
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

1. Exit number follows I-215 rather than SR 259.

See also

• California Roads portal

References

1. California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
2. 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. 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

Template:Attached KML/California State Route 259

KML is from Wikidata

• Caltrans: State Route 259 highway conditions
• Caltrans Traffic Conditions Map
• California Highway Patrol Traffic Incidents
• California @ AARoads.com - State Route 259
• California Highways: SR 259