 State Route 108 | ||||
|---|---|---|---|---|
 SR 108 highlighted in red | ||||
| Route information | ||||
| Maintained by Caltrans | ||||
| Length | 120 mi[1] (190 km) | |||
| Restrictions | Segment through Sonora Pass closed in winter | |||
| Major junctions | ||||
| West end |   SR 99 / SR 132 in Modesto | |||
| East end |  US 395 near Bridgeport | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | Stanislaus, Tuolumne, Alpine, Mono | |||
| Highway system | ||||
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State Route 108 (SR 108) is a state highway in the U.S. state of California that runs from the Central Valley and across the Sierra Nevada via the Sonora Pass. It generally runs northeast from downtown Modesto near the SR 99/SR 132 interchange, to U.S. Route 395 near the Nevada state line. The route was once recommended to continue south of Modesto to Interstate 5, although today that portion exists as a county road. Parts of SR 108 are closed annually during the winter due to inclement weather along the summit.