State Route 104 | ||||
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Map of central California with SR 104 highlighted in red
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Route information | ||||
Defined by | ||||
Maintained by Caltrans | ||||
Length: | 36.04 mi (58.00 km) | |||
Major junctions | ||||
West end: | SR 99 near Galt | |||
SR 124 at Ione SR 88 near Sunnybrook |
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East end: | SR 49 in Sutter Creek | |||
Highway system | ||||
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State Route 104 (SR 104) is a west–east state highway in California's Central Valley. 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. Heading west past its western terminus along Twin Cities Road will lead to Interstate 5 and eventually to an end at State Route 160 north of Walnut Grove.
The route begins in Galt in Sacramento County at SR 99. It then heads eastward, forming the northern boundary of the city of Galt. The route turns northeast, passing through Herald, near Rancho Seco Nuclear Generating Station and on to the community of Clay before entering Amador County. It then continues past Mule Creek State Prison and begins a short overlap with SR 124 in Ione. Afterwards, it exits the town and has another overlap with SR 88, where it goes through the community of Sunnybrook. Its eastern terminus is at SR 49 in Sutter Creek.