California State Route 172

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State Route 172 marker

State Route 172
Route information
Defined by S&HC § 472
Maintained by Caltrans
Length: 8.917 mi[1] (14.351 km)
Major junctions
West end: SR 36 at Mineral
East end: SR 36 / SR 89 at Morgan Springs
Highway system
SR 170 SR 173

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.

Route description[edit]

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.[2]

Major intersections[edit]

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.

Location Postmile
Destinations Notes
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