California State Route 172

State Route 172 (SR 172) is a state highway in the U.S. state of California in Tehama County. It is a loop route off of State Route 36 that serves the Mill Creek area of Lassen National Forest.

State Route 172
Map of Tehama County in northern California with SR 172 highlighted in red
Route information
Defined by Streets and Highways Code § 472
Maintained by Caltrans
Length8.917 mi[1] (14.351 km)
Major junctions
West end SR 36 at Mineral
East end SR 36 / SR 89 at Morgan Springs
Location
CountiesTehama
Highway system
← SR 170→ SR 173

Route description

SR 172 begins at a junction with SR 36 and heads southeast through Lassen National Forest. The route then turns south, crossing the South Fork Battle Creek and entering a wooded area. The road then winds eastward through the forest, roughly parallel to Mill Creek. SR 172 then turns northward along Mill Creek and heads back toward SR 36, its eastern terminus.[2]

SR 172 is not part of the National Highway System,[3] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[4]

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 Tehama County.

LocationPostmile
[1][5][6]		DestinationsNotes
Mineral0.00 SR 36 – Chester, SusanvilleWest end of SR 172
Morgan Springs8.92 SR 36 / SR 89 – Red Bluff, SusanvilleEast end of SR 172
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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. Microsoft; Nokia (February 12, 2011). "SR 172" (Map). Bing Maps. Microsoft. Retrieved February 12, 2011.
  3. Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 17, 2017.
  4. 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.
  5. California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  6. California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006

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