California State Route 91
State Route 91 (SR 91) is a major east–west state highway in the U.S. state of California that serves several regions of the Greater Los Angeles urban area. A freeway throughout its entire length, it officially runs from Vermont Avenue in Gardena, just west of the junction with the Harbor Freeway (Interstate 110, I-110), east to Riverside at the junction with the Pomona (SR 60 west of SR 91) and Moreno Valley (SR 60 and I-215 east of SR 91) freeways.
State Route 91 | ||||
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SR 91 highlighted in red, with relinquished portions in pink | ||||
| Route information | ||||
| Maintained by Caltrans | ||||
| Length | 59.047 mi (95.027 km) Portions of SR 91 have been relinquished to or are otherwise maintained by local or other governments, and are not included in the length. | |||
| History | 1930s as a highway; 1964 as number | |||
| Tourist routes | Riverside Freeway | |||
| Major junctions | ||||
| West end | Vermont Avenue in Gardena | |||
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| East end | I-215 / SR 60 in Riverside | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | Los Angeles, Orange, Riverside | |||
| Highway system | ||||
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Though signs along the portion from Vermont Avenue west to Pacific Coast Highway (SR 1) in Hermosa Beach along Artesia Boulevard are still signed as SR 91, the California Department of Transportation (Caltrans) no longer controls this portion of the highway, as this segment was relinquished to local jurisdictions in 2003.
SR 91 inherited its route number from the mostly decommissioned U.S. Route 91 (US 91), which passed through the Inland Empire in a northeasterly direction on its way to Las Vegas, Salt Lake City, and points beyond. Those segments of US 91 are now parallel to, or have been replaced altogether by, I-15.