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Post-1964 Legistlative Route Graphic

Former State Route 171

Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.

Routing Routing

Former Rte 171No current routing.

Post 1964 Signage History Post 1964 Signage History

Post-1964 Legistlative Route Graphic In 1963, Route 171 was defined as "Route 5 near San Diego to Route 805 via Switzer Canyon."

In 1994, the previous routing for Route 171, from Route 5 near San Diego to Route 805 via Switzer Canyon, was deleted per AB 3132, Chapter 1220. This was part of a road system first proposed in 1926. It would have started at I-5 near downtown San Diego, run northeast to connect with I-805 near the I-8 junction, crossing several canyons, residential areas, and the Balboa Park Municipal Golf Course. A remnant of what was to be a freeway-to-freeway connection exists at the I-5 and Pershing Drive/B Street interchange (Exit 15B).

According to Tom Fearer, Switzer Canyon was the subject of numerous proposals by the San Diego City Council to be added to the City Park System beginning in the late 1970s.  This culminated in 1987 when the City of San Diego purchased Switzer Canyon which effectively blocked the planned route of Route 171.
(Source: Tom Fearer, Gribblenation Blog "Paper Highways of San Diego; unbuilt California State Route 157, 171, and 252")

Pre 1964 Signage History Pre 1964 Signage History

The 1964-1994 routing of Route 171 was LRN 284, defined in 1959. It was never signed.

Route 171 was not defined as part of the initial state signage of routes in 1934. It is unclear what (if any) route was signed as Route 171 between 1934 and 1964.

Naming Naming

This would have been the Switzer Canyon Freeway.

Other WWW Links Other WWW Links

Freeway Freeway

Originally to have been freeway; later deleted from SHC 253.1.

Pre-1964 Legislative Route Pre-1964 Legislative Route

In 1933, Chapter 767 defined the route from "[LRN 60] near Huntington Beach to Whittier" as part of the state highway system. In 1935, this was added to the highway code as LRN 171, with the routing:

"[LRN 60] near Huntington Beach to [LRN 2] near Whittier"

In 1951, Chapter 1562 changed the terminus: "… to [LRN 2] near Whittier [LRN 62] at or near Buena Park"

This route ran from Route 1 near Huntington Beach to Route 39 near Buena Park. Between Route 1 and the US 101 junction, this was Route 39. Between Lincoln Ave and US 101, this was US 91; it ran along Huntington Beach Blvd; Stanton Ave; and Grand Ave.

Acronyms and Explanations:

Back Arrow Route 170 Forward Arrow Route 172

© 1996-2020 Daniel P. Faigin.
Maintained by: Daniel P. Faigin <>.