California State Route 172
|Defined by S&HC § 472|
|Maintained by Caltrans|
|Length:||8.917 mi (14.351 km)|
|West end:||SR 36 at Mineral|
|East end:||SR 36 / SR 89 at Morgan Springs|
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 the Mill Creek. SR 172 then turns northward along Mill Creek and heads back toward SR 36, its eastern terminus.
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). Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Tehama County.
|Mineral||0.00||SR 36 – Chester, Susanville||West end of SR 172|
|Morgan Springs||8.92||SR 36 / SR 89 – Red Bluff, Susanville||East end of SR 172|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Staff. "State Truck Route List" (XLS file). California Department of Transportation. Retrieved August 21, 2012.
- Microsoft. "SR 172". Bing Maps (Map). Cartography by Nokia. http://www.bing.com/maps/#JmNwPTQwLjM1NzQyNDc1Mjg0NTY5fi0xMjEuNTU0NDY5NzY0MjMyNjQmbHZsPTEzJmRpcj0wJnN0eT1yJnJ0cD1wb3MuNDAuMzQ3Mzg1OTM5OTU0NThfLTEyMS41OTcwNzMzMDE2NzE5NV9uZWFyJTIwU1ItMTcyJTJDJTIwTWluZXJhbCUyQyUyMENBJTIwOTYwNjNfX19hX352LjQwLjMyMzI3NDg2ODc0MTJfLTEyMS41NzEyOTI1NzkxNzQwNF9TUi0xNzIlMjAlMkYlMjBTdGF0ZSUyMEhpZ2h3YXklMjAxNzJ+cG9zLjQwLjM2MTkzOTA3NjM1MDY2Xy0xMjEuNTExODY0ODg1Njg2MjFfbmVhciUyMFN0YXRlJTIwSGlnaHdheSUyMDM2JTIwRSUyQyUyMENBJTIwOTYwNjFfX19hXyZtb2RlPUQmcnRvcD0wfjB+MH4=. Retrieved February 12, 2011.
- California Department of Transportation, Log of Bridges on State Highways, July 2007
- California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
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