Former State Route 30 Business
California State Route 30 Business followed Highland Avenue between SR 259 and SR 210 at Arden Avenue through northern San Bernardino. SR 18 Business also overlapped with SR 30 Business between SR 259 and Sierra way.
SR 30 was decommissioned in favor of SR 210 in March 2008. Remnant shields for the business route remained posted until at least 2012.
An porcelain enamel overhead with no button copy precedes the diamond interchange joining Highland Avenue (old SR 30 Business) with SR 259.
07/15/07
Removed after 2012, this Interstate 215 trailblazer referenced the southbound entrance ramp from Highland Avenue to SR 259.
07/15/07
SR 259 leads directly onto I-215 south toward Riverside. The exchange joining I-215 with I-10 represents the eastern extent of the San Bernardino Freeway, which travels west to Los Angeles.
07/15/07
The subsequent left turn onto SR 259 northbound links Highland Avenue with SR 210 east to SR 18. Prior to the extension of the freeway along SR 30 to I-10, SR 30 follows the alignment of SR 330 into the mountains.
07/15/07
SR 259 is an unsigned designation, so freeway entrance assemblies on Highland Avenue reference I-215 for southbound and SR 210 for northbound.
07/15/07
The temporary SR 30 shield was posted as a construction detour due to the connection created between the original SR 30 freeway and the SR 210 freeway opened in Summer 2007.
07/15/07
SR 30 trailblazers formerly referenced SR 259 north from Highland Avenue (old SR 30 Business) to the freeway paralleling 30th Street.
07/15/07
SR 259 north curves northeast to join SR 210 beyond the exit ramp for E Street.
07/15/07
East
An SR 30 trailblazer was erroneously posted after the entrance ramp to SR 259 northbound.
07/15/07
Historically SR 18/30 overlapped east from SR 259 to Sierra Way. Removed by 2011, this shield assembly was posted along Highland Avenue east of SR 259.
05/02/02
East
Former confirming marker for SR 30 Business posted along Highland Avenue east after Sierra Way (old SR 18 Business).
07/15/07
The SR 30 Business shield posted east of Sierra Way was replaced with a speed limit 40 sign by 2017.
07/15/07
Waterman Avenue extends south from SR 18/210 to intersect Highland Avenue by St. Bernardine Medical Center and Mountain View Cemetery.
07/15/07
Valencia Avenue intersects Highland Avenue (old SR 30 Business) by Perris Hill Park, which includes a nearby YMCA.
07/15/07
Highland Avenue east crossing channelized East Twin Creek.
07/15/07
Harrison Street stems north from Highland Avenue near Fiscalini Field in Perris Hill Park into residential areas.
07/15/07
Highland Avenue (old SR 30 Business) proceeds east to the signal at Golden Avenue.
07/15/07
Replaced with a SR 210 trailblazer by 2011, this assembly referencing forthcoming Del Rosa Avenue north was removed entirely by 2021.
07/15/07
Del Rosa Avenue enters a diamond interchange (Exit 78) with SR 210 less than a half mile north of Highland Avenue.
07/15/07
Replaced with a shield for SR 210 by 2008, this trailblazer references Sterling Avenue north for the freeway west. This is because U-turns are prohibited from Highland Avenue east to the westbound entrance ramp at Arden Avenue.
07/15/07
SR 30 Business ended at the split diamond interchange joining the freeway with Highland Avenue and Arden Avenue. The eastbound entrance ramp is off Arden Avenue.
07/15/07
Highland Avenue east at Arden Avenue. An entrance ramp joins Highland Avenue westbound with SR 210 west directly here.
07/15/07
West
State Route 30 historically followed Highland Avenue west from Boulder Avenue. When the route was relocated onto the parallel freeway, SR 30 Business was established west from the exchange along SR 210 at Exit 79.
07/15/07
West
SR 18-30 Business overlapped one mile west along Highland Avenue from Sierra Way to a diamond interchange (Exit 1 A) with SR 259. SR 259 is the connector freeway between I-215 northbound and SR 210 eastbound.
07/15/07
SR 259 also links SR 210 westbound with I-215 south to I-10 (San Bernardino Freeway). SR 18 historically turned south along SR 259, I-215 and SR 91 to Long Beach.
05/02/02
SR 30 freeway entrance shields for SR 259 were replaced after 2008 with SR 210 markers. SR 259 is an unsigned route.
07/15/07
West
Missing since 2021, this I-215 trailblazer preceded the traffic light at Lincoln Drive along Highland Avenue westbound.
07/15/07
Highland Avenue crosses over I-215, Cajon Boulevard (Historic U.S. 66-91-395), and the BNSF Railroad west of Davidson Avenue. The median barrier on the overpass has divoted curbing.
06/24/07
Highland Avenue lowers from the bridge spanning Cajon Boulevard (Historic U.S. 66-91-395) west to a signalized intersection with Mount Vernon Avenue.
06/24/07
Mount Vernon Boulevard north links Highland Avenue with Interstate 215 at a diamond interchange (Exit 46 B).
06/24/07
Historically SR 30 and U.S. 91-99-395 met at a five-point intersection of Highland Avenue, Mount Vernon Avenue and Cajon Boulevard northwest.
06/24/07
Highland Avenue (old SR 30 Business) continues west to the traffic light at Western Avenue.
06/24/07
Highland Avenue is a five-lane boulevard between Western Avenue and Medical Center Drive.
06/24/07
Medical Center Drive leads south from Highland Avenue to Dignity Health - Community Hospital of San Bernardino and SR 66 (5th Street).
06/24/07
SR 30 Business previously ended where SR 30 overtook Highland Avenue from the temporary freeway end southwest of I-215.
06/24/07
SR 210 spans Highland Avenue without direct access. University Parkway connects the two roads at the second signal beyond the overpass.
06/24/07
Photo Credits:
- Andy Field: 05/02/02, 06/24/07, 07/15/07
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Page Updated Tuesday July 15, 2025.