California State Route 104

State Route 104 marker

State Route 104

Map of central California with SR 104 highlighted in red
Route information
Defined by Streets and Highways Code § 404
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
Counties: Sacramento, Amador
Highway system
← SR 103I-105 →

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.

Route description

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.[2]

Major intersections

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[3] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

CountyLocationPostmile
[3][4][5]		DestinationsNotes
Sacramento
SAC 0.00-17.69		Galt0.00 CR E13 (Twin Cities Road) – Walnut GroveContinuation beyond SR 99
0.00 SR 99 – Sacramento, StocktonInterchange; west end of SR 104
Amador
AMA 0.00-10.07		IoneR5.77 SR 124 north (Plymouth Highway) / Shakeley Lane – Plymouth, PlacervilleWest end of SR 124 overlap
R5.96 SR 124 south (Church Street) – StocktonEast end of SR 124 overlap
​8.20
7.39[N 1]		 SR 88 west / Jackson Valley Road – StocktonWest end of SR 88 overlap
​12.68[N 1]
8.39		 SR 88 east – Martell, JacksonEast end of SR 88 overlap
Sutter Creek10.07 SR 49 – Sutter Creek, JacksonEast end of SR 104
10.07Ridge RoadContinuation beyond SR 49
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. 1 2 Indicates that the postmile represents the distance along SR 88 rather than SR 104.

See also

References

  1. ↑ January 1, 2006 California Log of Bridges on State Highways
  2. ↑ California Road Atlas (Map). Thomas Brothers. 2008.
  3. 1 2 California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
  4. ↑ California Department of Transportation, Log of Bridges on State Highways, July 2007
  5. ↑ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006

Route map: Google

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