California Highways: Route by Route History,Interstate,Legislative (LRN),Pre-1964,Routes,State,US Highways CA RxR 4.07: Route 11: From Pasadena to the Border

CA RxR 4.07: Route 11: From Pasadena to the Border

February 21, 2026February 21, 2026| DanielDaniel| 0 Comment| 8:01 am
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In Episode 4.07, we examine Route 11.  We’ll start by exploring LRN 11, which was essentially the first state highway, running from Sacramento to Placerville, later extended to run from Antioch to the Nevada State Line near Lake Tahoe. Today, it is primarily US 50 with a bit of Route 160. We then the original Sign Route 11, which was LRN 165 and LRN 205, and is today’s Route 110. It was also US 60, and is perhaps better known as the Harbor Freeway and the Pasadena Freeway / Arroyo Seco Parkway. We explore the history and various routings of Sign Route 11, including the history of the Figueroa Tunnels. Lastly, we explore the current Route 11, which is a short route near the Mexico border that connects the San Diego Freeway System (Route 905/Route 125) to the Otay Mesa East port of entry.

On deck: In episode 4.08, we start a three-episode group that will cover Route 12. Route 12 runs from Route 1 near Valley Ford to US 101 and thence to Sonoma area. It then runs through Napa to meet I-80 near Cordelia. That part is episode 4.08. Episode 4.09 will cover Route 12 from I-80 near Suisan City through the Sacramento Wetlands to Lodi and Route 99. Lastly, Episode 4.10 will cover Route 12 from Route 99 to the Sierra Foothill and San Andreas, where it meets Route 49.

Here’s the link to the show:

And here’s the link on Spotify for Creators:

Here are some relevant links (I may edit this to add more links in later):

We encourage you to explore our back catalog through this site or our Spotify for Creators home.

 

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October 17, 2025October 17, 2025| DanielDaniel| 0 Comment| 6:46 am

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July 18, 2025July 18, 2025| DanielDaniel| 0 Comment| 8:09 pm

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CA RxR 4.08: Route 12: Sonoma and NapaCA RxR 4.08: Route 12: Sonoma and Napa

March 11, 2026March 11, 2026| DanielDaniel| 0 Comment| 6:45 am

Episode 4.08 is the first of three episodes focusing on Route 12. We start by exploring LRN 12, which we visited before in our episodes on Route 8, for LRN 12 became I-8 between San Diego and El Centro. We then look at Sign Route 12 and Route 12, which are mostly the same route… except, of course, in the first segment where they differ in routing between Route 1 and US 101. Episode 4.08 focuses on the first two segments of Route 12, which covers the portions between Route 1 near Valley Ford or Jenner through Sebastapol, Santa Rosa, Sonoma, Napa, and into Cordelia. Episode 4.09 will cover Route 12 from I-80 near Suisan City through the Sacramento Wetlands to Lodi and Route 99. Lastly, Episode 4.10 will cover Route 12 from Route 99 to the Sierra Foothill and San Andreas, where it meets Route 49. As usual, we’ll cover historical routings, projects, and names along the route.

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