California State Route 153

State Route 153 (SR 153) is a very short state highway in the U.S. state of California in El Dorado County. It extends only 0.5 miles (0.80 km) from the junction of Cold Springs Road and SR 49, in the town of Coloma in the heart of California's Gold Country, to the monument marking the grave of James Marshall, whose finding of gold along the American River, January 24, 1848 sparked the California Gold Rush. The exact routing is from SR 49 south on Cold Springs Road then west on Monument Road in Marshall Gold Discovery State Historic Park to the monument.[3]

State Route 153
SR 153 highlighted in red
Route information
Defined by Streets and Highways Code § 453
Maintained by Caltrans
Length0.550 mi[1] (0.885 km)
Major junctions
West endJames Marshall Monument[2]
East end SR 49 in Coloma
Location
CountiesEl Dorado
Highway system
← SR 152SR 154 →

Although the California Department of Transportation has posted a sign indicating that SR 153 is "California's shortest state highway",[4] it is not: SR 77, SR 265, SR 283, and SR 275 are all shorter. However, these highways are merely short connectors between other highways.[1]

Route description

The Monument Road portion of the highway is quite narrow, and appears to end at a park employee residence. There is an easily overlooked sign which indicates that the road continues across, as a very narrow one way road, in front of the yard of the residence. There is a parking lot on the right, but there is also a small parking area closer to the monument on the loop road that circles it. The highway officially terminates at the Monument, but since the last short segment is one way, one can't (legally) retrace one's route if they drive all the way to the monument.[5] The one lane, one way road continues on past its junction with the loop road, down the hill and passes Marshall's cabin, ending at the junction of Church and High streets in the town of Coloma.[5]

SR 153 is not part of the National Highway System,[6] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[7]

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).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in El Dorado County.

LocationPostmile
[1][8][9]		DestinationsNotes
​0.55James Marshall Monument[2]West end of SR 153
Coloma0.00 SR 49 (Coloma Road)East end of SR 153
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
gollark: Maybe the external system idea is the best one.]
gollark: http://webserver2.tecgraf.puc-rio.br/~lhf/ftp/lua/#lbc
gollark: https://stackoverflow.com/questions/288707/what-is-the-standard-or-best-supported-big-number-arbitrary-precision-librar#863538
gollark: Ah.
gollark: BN?

See also
  •  California Roads portal

References
  1. 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.
  2. Online map of Marshall Gold Discovery SHP
  3. California Department of Transportation, Photolog, accessed February 2008
  4. Page containing photo of sign, taken December 28, 2004
  5. California State Parks brochure/map of Marshall Gold Discovery State Historic Park, copyright 2006, referenced and visited July 7, 2009
  6. Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 24, 2017.
  7. Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
  8. California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  9. California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006

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