 State Route 166 | ||||
|---|---|---|---|---|
 Map of western California with SR 166 highlighted in red | ||||
| Route information | ||||
| Maintained by Caltrans | ||||
| Length | 95.886 mi[1] (154.314 km) SR 166 is broken into pieces, and the length does not reflect the US 101 and SR 33 overlaps that would be required to make the route continuous. | |||
| Major junctions | ||||
| West end |  SR 1 in Guadalupe | |||
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| East end |  SR 99 at Mettler | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | Santa Barbara, San Luis Obispo, Kern | |||
| Highway system | ||||
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State Route 166 (SR 166) is a state highway in the U.S. state of California. It connects the Central Coast to the southern San Joaquin Valley, running from State Route 1 in Guadalupe and through Santa Maria in Santa Barbara County to State Route 99 in Mettler in Kern County.