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State Shield

State Route 261

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


Routing Routing

Rte 261Toll Road From Walnut Avenue in the City of Irvine to Route 241.

Post 1964 Signage History Post 1964 Signage History

Post-1964 Legistlative Route Graphic In 1965, Chapter 1372 defined Route 261 as “Route 101 near Longvale to Route 5 near Willows via the vicinity of Covelo and Mendocino Pass.” This same definition was also added by 1965 Chapter 1397; this duplicate definition was removed in 1967 by Chapter 235.

In 1972, Chapter 1216 repealed the route definition and transferred the routing to Route 162.

State Shield Transportation Corridor In 1991, SB 732, Chapter 775 created a new definition of Route 261 as “Route 5 near the border of the Cities of Tustin and Irvine to Route 231”, using a routing transferred from former Route 231.

In 1996, Chapter 1154 changed the origin from “Route 5 near the border of the Cities of Tustin and Irvine” to “Walnut Avenue in the City of Irvine” (Walnut Avenue and Jamboree). It also changed the terminus to reflect the renumbering of Route 231 to Route 241: “Walnut Avenue in the City of Irvine to Route 241.” This is part of the "Eastern Toll Road", a toll road that is part of the Orange County Transportation Corridors.

According to Robert Cruickshank, the original road (Jamboree) was built as a joint project between the County of Orange and the City of Irvine, around 1989/90, to close a gap in Jamboree between Edinger and Barranca through the Tustin Marine Corps Air Station. The grade-separated interchange at Warner was constructed because as part of the agreement to build through the Marine base (now closed) the road had to have high sound walls and barbed wire atop those walls. The military may not have wanted a place where traffic would have been held up on their land, so that may have dictated the Warner interchange. In any event, since no state funds went into the construction of the road or maintenance of it, and since Jamboree was never a state route, the little freeway stub never got a state number. In the late 1990s, when the Route 261 toll road was being constructed, its builders decided to maximize travel speeds and times by constructing an interchange at Edinger, and another at Walnut (whereas before, there were simply stoplights). The result was that there was a freeway from Barranca northward, although Jamboree Road moves off of the freeway at the Walnut interchange. This was all part of a broader plan to improve road circulation between the new (in the early 1990s) developments in the Tustin Ranch area and the industrial parks in Irvine. There have always been plans to extend Tustin Ranch Road south from Walnut, through the old base, and connect with Von Karman Road at Barranca. This was to involve a grade-separated interchange at Edinger, like the one now at Jamboree, in large part because of the rail corridor that parallels Edinger near the old base.

Pre 1964 Signage History Pre 1964 Signage History

Post-1964 Legistlative Route Graphic The 1965-1972 routing (now Route 162) was not a state route before 1964. The route runs (signed as Route 162) along Covelo Road into Covelo. It then runs E along Mendocino Pass Road (unsigned, but marked FH-7) through the Mendocino National Forest. Mendocino Pass Road becomes Alder Springs Road in Glenn County. Signage of the road resumes naer Elk Creek when Route 162 exits the National Forest. The route enters Willows along Wood Steet.

Toll Road The post-1991 routing was not a defined part of the state highway system before 1991.

Status Status

Toll Road Route 261 is the west leg of the Eastern Transportation Corridor, a toll road in Orange County. The leg connects Route 241 (the Foothill Corridor) with Jamboree Road, just south of I-5 in Irvine. The Eastern Transportation Corridor was constructed in three segments:

Naming Naming

Eastern Transportation Corridor

Classified Landcaped Freeway Classified Landcaped Freeway

The following segments are designated as Classified Landscaped Freeway:

County Route Starting PM Ending PM
Orange 261 0.00 3.21
Orange 261 5.75 6.20

Freeway Freeway

[SHC 253.1] Entire route.

Exit Information Exit Information

Other WWW Links Other WWW Links

Statistics Statistics

Overall statistics for Route 261 (before consolidation with Route 231):

Pre-1964 Legislative Route Pre-1964 Legislative Route

In 1959, Chapter 1062 defined LRN 261 as “[LRN 238] near French Camp to [LRN 4]”. This is present-day Route 234 from present-day I-5 near French Camp to Route 99.


Acronyms and Explanations:


Back Arrow Route 260 Forward Arrow Route 262

© 1996-2020 Daniel P. Faigin.
Maintained by: Daniel P. Faigin <webmaster@cahighways.org>.