California State Route 173
| ||||
|---|---|---|---|---|
| Length | 24.944 mi[1] (40.143 km) | |||
| Restrictions | The one-lane, unpaved segment between the Pacific Crest Trail and a point northeast of Lake Arrowhead is closed indefinitely | |||
| Major junctions | ||||
| West end |  SR 138 in Hesperia | |||
| East end |  SR 18 near Lake Arrowhead | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | San Bernardino | |||
| Highway system | ||||
| ||||
State Route 173 (SR 173) is a
It is the only California state highway with an
Route description
SR 173 begins at
SR 173 is not part of the National Highway System,[4] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[5] SR 173 is eligible for inclusion in the State Scenic Highway System,[6] but it is not officially designated as a scenic highway by the California Department of Transportation.[7]
History
Before 1964, Route 173 was part of California Legislative Route 59; however, like a small number of other California State highways, it was not signed. From 1934 to the mid-1950s the part of Route 59 that is now Route 173 was designated by the California Division of Highways to be a segment of California sign route 2; however, signing did not occur. From the mid-1950s through July 1964, the Division of Highways changed the routing of future sign route 2 from the subject segment of Route 59 to Legislative Route 188, the segment of present
The highway has faced repeated problems since the 2003 Willow Fire that has made the one-lane unpaved trail portion (approximately between Postmile 7.5 and Postmile 11.5) unsafe for passage from erosion and storm damage. Since March 2011, the one-lane trail portion of SR 173 has been permanently closed to through traffic.[2] While roadway preservation maintenance (basic grading, debris clearance) is still done, this decision effectively ends all further interest to upgrade the segment to a 2-lane passable highway through state-funded projects.
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 ().[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in San Bernardino County.
| Location | Postmile [1][8][9] | Destinations | Notes | ||
|---|---|---|---|---|---|
Silverwood Lake, Crestline | West end of SR 173 | ||||
| | L6.99 | Arrowhead Lake Road – Hesperia | |||
| | L7.75– 10.90 | One-lane, unpaved segment, closed | |||
| Lake Arrowhead | 21.46 |  SR 189 – Blue Jay | |||
| | 23.04 | SR 18 – Running Springs, Big Bear Lake, San Bernardino | East end of SR 173 | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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See also
California Roads portal
References
- ^ a b c 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.
- ^ a b c "State Route 173 (Unpaved Portion) Permanent Closure" (PDF). CalTrans District 8. Retrieved 18 December 2012.
- ^ San Bernardino County Road Atlas (Map). Thomas Brothers. 2008.
- ^ Federal Highway Administration (March 25, 2015). National Highway System: California (South) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration.
- ^ 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.
- ^ "Article 2.5 of Chapter 2 of Division 1". California Streets & Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
- ^ California Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved September 17, 2017.
- ^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
- ^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
External links
