California State Route 45

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State Route 45

SR 45 highlighted in red
Route information
Maintained by Caltrans
Length70 mi[1] (110 km)
Major junctions
South end SR 113 at Knights Landing
Major intersections
North end SR 32 at Hamilton City
CountryUnited States
CountiesYolo, Colusa, Glenn
Highway system
SR 44 SR 46

State Route 45 (SR 45) is a state highway in the U.S. State of California that travels in a north–south direction in the Sacramento Valley from Route 113 in Knights Landing to Route 32 in Hamilton City.

Route description

End of Route 45 at Route 32 in Hamilton City

The route begins at SR 113 in Knights Landing in Yolo County. It then heads northward and enters Colusa County, where it has a short overlap with SR 20. It then enters Glenn County, where it overlaps SR 162 through the cities of Codora and Glenn. It then continues northward to its end at SR 32 in Hamilton City.

SR 45 is part of the California Freeway and Expressway System,[2] but 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 to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[5] 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.

YOL 0.00-12.92
Knights Landing0.004th StreetContinuation beyond SR 113
0.00 SR 113 (Locust Street) – Robbins, Yuba City, WoodlandSouth end of SR 45
5.80 CR E11 (Road 98A)
COL 0.00-34.18
36.79[N 1]

SR 20 east – Meridian, Yuba City
South end of SR 20 overlap
Colusa31.09[N 1]

SR 20 west (10th Street) – Williams, Clearlake
North end of SR 20 overlap
Maxwell Road to I-5 – Maxwell
GLE 0.00-23.23
SR 162 east / Road 61 – Butte City, Oroville
South end of SR 162 overlap
SR 162 west – Willows
North end of SR 162 overlap
Hamilton City23.23 SR 32 (6th Street) – Chico, OrlandNorth end of SR 45
23.23Canal Street (Road 203)Continuation beyond SR 32
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ a b Indicates that the postmile represents the distance along SR 20 rather than SR 45.


  1. ^ a b California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  2. ^ "Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  3. ^ Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 14, 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. ^ a b 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.
  6. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2007

External links