California Highways: Route by Route

Welcome to Season 4 of CA Highways: Route by Route. Episode 4.01 is the first half of our exploration of Route 8. This episode covers the 8th State Highway, which became LRN 36 and later Route 194. It covers LRN 8, which ran from Ignacio (Novato) to Cordelia via Napa, and became parts of Route 37, Route 121, Route 12, and Route 29. We look at Sign Route 8, which became today's Route 26. And lastly, we look at I-8 in San Diego, ...

A New Year's Gift for you: Our last Bonus Episode of Season 3. Episode 3.15 features an interview with Claire Kennedy, Archivist for the Los Angeles Metropolitan Transportation Agency (LA Metro). In this role, Claire manages the LA Metro Archives, which date back to the 1800s and the earliest horse-drawn transportation in the city. These archives cover not only the wide variety of transit agencies in Los Angeles, but also the h...

Bonus Episode 3.14 continues our inter-season gap between Seasons 3 and 4. This episode we're sharing an episode of the excellent Freeway Exit podcast from KPBS San Diego. Freeway Exit, hosted by Andrew Bowen, is an exploration of San Diego's freeways, their costs, and how they can be part of the solution. It covers the forgotten history of the urban freeway network, and how decades after that network was finished, some com...

Episode 3.13 is our first bonus episode, bridging the gap while we write Season 4. This bonus episode is a presentation that our co-host, Tom Fearer, gave at the Fresno Flats museum back in May 2025. The presentation focuses on the highways of the Oakhurst area, and was described as: "Since the establishment of the Stockton-Los Angeles Road in 1853 the Sierra Nevada foothills of what is now Madera County has been a hub of high...

Episode 3.12 brings Season 3 to a close, modulo our bonus episodes. In Episode 3.12, we explore all things Route 7. As is our tradition, we start by looking into the 7th state highway, the Kings River Canyon Road, and LRN 7, which included portions of US 40 and US 99W. We then turn our attention to various incarnations of Route 7: Sign Route 7, both the section along the Eastern Sierras that is now US 395 and US 6 and the section t...

With Episode 3.11, we turn our attention to Route 6, better known as US 6. As is our tradition, we start by looking into the 6th state highway, and the LRN 6, and then the route that was originally signed as Sign Route 6. We then turn our attention to US 6, looking at the history of the route, and the historical routings in Long Beach, Los Angeles, Newhall, the Antelope Valley, the Eastern Sierras, and Bishop. We also talk about El...

Episode 3.10 completes our exploration of I-5, looking at the segment that was former US 99, LRN 3, between Red Bluff and the Oregon Border. Along the way, we visit Red Bluff, Anderson and Redding, the Lake Shasta Area, Dunsmuir, Mt. Shasta, Weed, Yreka, and run into a California Agricultural Inspector who was trapped in a bottle by a witch. Our next episode will move us to the next highway, looking at US 6 and all things Route 6 i...

Episode 3.09 continues our exploration of I-5 with the segment from Sacramento to Red Bluff, which primarily incorporates the former LRN 7 / US 99W routing between Woodland and Red Bluff, and a new routing that roughly followed LRN 238, then LRN 50 and LRN 232 between Sacramento and Woodland (near former Sign Route 16 and Sign Route 24). We talk about this history of this segment, as well as some discussion of historical routings i...

Episode 3.08 continues our exploration of I-5 with a slight digression: A discussion about I-5W. In the late 1950s, I-5W was proposed as a spur route from I-5 running along what is today Route 132, I-580 (both the Tracy Diagonal and the former US 50 portion between the I-205/I-580 junction and Oakland/Berkeley), I-80 between Berkeley and near Vacaville, and I-505 between Vacaville and I-5. This short episode explores these pieces a...

Next up in our exploration of I-5: the segment between the I-5 / Route 99 split and where I-5 meets former US 99W (now Route 113) in Woodland. Generally known as the "Westside Highway", this was mostly a completely new routing for I-5 along LRN 238, although some portions paralleled former US 50 between Stockton and Sacramento, and Sign Route 16 between Sacramento and near Route 113 in Woodland/Yolo.  As usual, we cover the history...

Our I-5 exploration continues, with a focus on the segment of I-5 from the US 101 split in Downtown Los Angeles to the Route 99 split in Wheeler Ridge. This episode, Part 2 of 3.06, completes the history from Part 1 with a detailed dive into the history of the Ridge Route. After that, we discuss major projects in this segment of I-5, as well as historical and memorial names. This includes our second deep dive into the history of th...

Our I-5 exploration continues, with a focus on the segment of I-5 from the US 101 split in Downtown Los Angeles to the Route 99 split in Wheeler Ridge. This episode, Part 1 of 3.06, after a recap on LRN 5 and Sign Route 5, focuses on the history of I-5 from Downtown LA (DTLA) to and through the Newhall Pass. We explore the history of LRN 4 and LRN 161, the timeline of freeway construction to and through Burbank, the history of Rout...

In this episode, we continue our exploration of I-5, the central spine of California. We're splitting the discussion over 6 episodes, some of which are two-parters. This first episode (a two-parter) looks at the former US 101 segment, from the Mexico Border to Downtown Los Angeles. Part 2, this part, looks at the projects along this segment of I-5, as well as some of the more significant names. Go back to part 1 for a discussion of...

In this episode, we start our exploration of I-5, the central spine of California. We're splitting the discussion over 6 episodes, some of which are two-parters. This first episode (a two-parter) looks at the former US 101 segment, from the Mexico Border to Downtown Los Angeles. Part 1, this part, starts with a discussion of all things 5: Maritime Highway M-5, the 5th state highway, Legislative Route 5, Sign Route 5, and then I-5. ...

In this episode, we complete our exploration of Route 4, covering the segments from Stockton and Route 99 through Angels Camp, and then on over the Sierras to Route 89 near Markleville. This includes segments that go through Gold Country, as well as the Ebbetts Pass segment that includes some very steep grades. Along the way, we look at the history of the route in these areas, projects along the way, and naming of the route. As alw...

In this episode, we continue our a 3-part exploration of Route 4. This episode focused on the Stockton Crosstown Freeway: A short freeway segment of Route 4 that bisects the city of Stockton, essentially running from I-5 to Route 99. We talk about the LRNs that made up this segment: LRN 75, and LRN 24. We spend much of the episode talking about the impact the construction of the route had on Stockton, including an interview with Dr...

In this episode, we commence a 3-part exploration of Route 4. This episode starts with all things Route 4: The 4th state route, DOH and Legislative Route 4, and pre-1964 Route 4, finally setting on today’s Route 4. We talk about the LRNs that make up today’s Route 4: LRN 106, LRN 75, and LRN 24. We focus on the first segment of the route, from I-80 in Hercules to I-5 in Stockton. We talk about Route 4 in cities such as Hercules, M...

Welcome to Season 3 of California Highways: Route by Route. We promised that the season would start in September, and we're making it by the wire. Season 3 covers Routes 3 through 7; this is the first episode covering Route 3, which is in Northwest California near Weaverville and Route 299. In this episode, we talk about all things "three": The third state route, Legislative Route 3, Sign Route 3, and finally the current Route 3. F...

As promised, we had one more bonus episode to tide you over during the break between Season 2 and Season 3. In this episode, we explore the auto trails that were in California before we started having signed numbered highways. Auto Trails discussed include (a) trails that are maintained today—El Camino Real, De Anza Trail, Volcanic Legacy Scenic Byway, and the Pony Express National Historic Trail. We spends most of the time on the ...