 State Route 104 | ||||
|---|---|---|---|---|
 SR 104 highlighted in red | ||||
| Route information | ||||
| Maintained by Caltrans | ||||
| Length | 36.04 mi[1] (58.00 km) | |||
| Major junctions | ||||
| West end |  SR 99 near Galt | |||
| East end |  SR 49 in Sutter Creek | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | Sacramento, Amador | |||
| Highway system | ||||
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State Route 104 (SR 104) is a west–east state highway in the U.S. state of California that runs from the Central Valley to the Sierra Foothills. It connects State Route 99 near Galt to State Route 49 in Sutter Creek via the city of Ione. It is known as Twin Cities Road from its western terminus up until just before Ione. West of the SR 104/SR 99 interchange, Twin Cities Road continues to Interstate 5 and then eventually end at State Route 160 north of Walnut Grove.