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| California State Route 83 | |
|---|---|
| State | CA |
| Type | SR |
| Route | 83 |
| Alternate name | Euclid Avenue |
| Length mi | 15.0 |
| Direction a | South |
| Terminus a | Chino Hills |
| Direction b | North |
| Terminus b | Upland |
| Counties | San Bernardino County, Los Angeles County |
California State Route 83 is a state highway running along Euclid Avenue through the Pomona Valley in San Bernardino County and adjacent areas near Los Angeles County. The route connects suburban and commercial centers including Chino, Ontario, Pomona, and Upland, linking with major freeways such as I‑10, I‑15, and SR 60. Euclid Avenue is notable for its historic alignment, urban development, and role in regional transportation planning involving agencies like the California Department of Transportation and the San Bernardino County Transportation Authority.
SR 83 follows Euclid Avenue, beginning near Chino Hills State Park and proceeding north through Chino, crossing corridors used by Union Pacific Railroad and BNSF Railway freight lines near industrial zones associated with Ontario International Airport. The highway passes adjacent to landmarks such as Chaffey College, the Pomona Fairplex, and downtown Pomona commercial districts, intersecting arterials including SR 71 and Foothill Boulevard. North of Pomona, Euclid Avenue continues through Montclair and into Upland, terminating near the foothills of the San Gabriel Mountains and connections to Historic Route 66 corridors and local streets that feed into I‑210. The alignment traverses mixed land uses—residential neighborhoods near Prado Regional Park, retail centers connected to Montclair Plaza, and institutional sites such as Cal Poly Pomona—and interfaces with regional networks serving freight to the Port of Los Angeles and Port of Long Beach via inland distribution centers.
The Euclid Avenue corridor has roots in 19th‑century land grants and early Southern Pacific Railroad development, later evolving with plats by pioneers like the Chaffey brothers who shaped irrigation and urban layouts in the Pomona Valley. Euclid Avenue gained prominence during the Automobile Club of Southern California era as suburban growth around Los Angeles accelerated in the early 20th century, aligning with regional projects such as the California State Highway System expansions under figures like Frederick F. Low and administrations including the California Highway Commission. The designation of SR 83 occurred mid‑20th century during renumbering initiatives influenced by legislative acts tied to statewide planning championed by entities such as the Metropolitan Water District of Southern California and metropolitan planners in LACMTA jurisdictional discussions. Industrialization, the development of Ontario International Airport, and the postwar housing boom led to repeated modifications and intersection upgrades coordinated with the Federal Highway Administration and local governments like the City of Pomona and City of Chino. Preservation efforts for historic sections intersected with cultural initiatives from institutions such as the Pomona Historical Society.
SR 83 intersects multiple major routes and corridors that facilitate regional connectivity: the southern terminus near California State Route 71 connectors and local roads in Chino Hills, crossings with SR 60 east–west thoroughfares, and junctions with I‑10 and I‑15 freight corridors serving inland ports. Within municipal boundaries, Euclid meets urban arterials including Base Line Road, Foothill Boulevard, and collector streets feeding Montclair Plaza and downtown Upland. These intersections are points of multimodal exchange involving Metrolink stations, bus operations by Omnitrans, and park‑and‑ride facilities linked to commuter services to hubs like Union Station (Los Angeles). Traffic control at these nodes has been modernized according to standards promulgated by the Institute of Transportation Engineers and county traffic engineers.
Daily traffic volumes on SR 83 reflect suburban commuting, freight movements, and retail access patterns, with peak flows influenced by commute corridors to Downtown Los Angeles, employment centers around Ontario and Rancho Cucamonga, and airport access to Ontario International Airport. Ridership and vehicle miles traveled have been subject to analysis by the California Department of Transportation and regional planning bodies like the San Bernardino Council of Governments, which monitor congestion, collision statistics, and air quality impacts regulated under statutes involving the California Air Resources Board. Modal shares include private vehicles, commercial trucks servicing inland freight facilities such as distribution centers linked to Amazon logistics, and transit riders using services operated by Omnitrans and transfers to Metrolink and Amtrak California corridors.
Planned improvements along Euclid Avenue consider intersection upgrades, signal coordination projects, and streetscape enhancements coordinated with grants from programs administered by the California Transportation Commission and federal initiatives like those managed by the U.S. Department of Transportation. Projects under discussion involve multimodal integration with Metrolink expansions, bicycle and pedestrian upgrades aligning with guidance from advocacy groups such as California Walks and design standards from the National Association of City Transportation Officials. Local agencies including the City of Pomona, City of Ontario, and San Bernardino County are advancing corridor plans that address electrification infrastructure for electrified buses and charging stations promoted by California Energy Commission incentives, while land‑use coordination with institutions like Cal Poly Pomona aims to manage growth adjacent to transit nodes. Future proposals remain contingent on funding cycles, environmental review under the California Environmental Quality Act, and cooperation among regional stakeholders including the San Bernardino County Transportation Authority and Los Angeles County Metropolitan Transportation Authority.
Category:State highways in California Category:Transportation in San Bernardino County, California