HeyJaredCalifornia Highways: Route by Route
California Highways: Route by Route is a podcast exploring California's state (and county) highway system, starting with the history and proceeding route by route through all highways in the state.
- Indexed episodes, last 90 days
- 4
- Latest publication
- Sep 18, 2026
- Audience
- Checking…
- Earliest in this view
- Jul 4, 2026
Latest episodes
CA RxR 5.01: I-15 (Part 1): South of Temecula (opens the original)
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Welcome to Season 5. We start the season with three episodes covering Route 15. The first (this episode), covers LRN 15, Sign Route 15, and today's Route 15 between San Diego and Temecula. LRN 15 ran from what is now Route 1 near Fort Bragg to what is today's I-80 near Emigrant Gap; it is today's Route 20. Sign Route 15 is what became Route 7 and later I-710, and is today's Long Beach Freeway. We have some interesting exploration of the ends of Sign Route 15 in Pasadena and Long Beach. We then t
CA RxR 4.15: Bonus: 25 Years of Gribblenation (opens the original)
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Episode 4.15 is the second of two bonus episodes. The year 2026 marks 25 years since Adam Prince, Doug Kerr, and Brian LeBlanc started the website. This episode features a discussion with Daniel, Tom (a Gribblenation contributor), Adam, and Doug about the past, present, and future of Gribblenation. Learn the story of how the site came to be, how the name was chosen, the hiccups along the way, and where the site is today. More importantly, learn the philosophy behind Gribblenation: To not only te
CA RxR 4.14: Bonus: New Idria Road and Hites Cove Road (opens the original)
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Episode 4.14 is the first of two bonus episodes. It tells the story of the corridors of New Idria Road and Hites Cove Road. Both of these historic highway corridors lead to mining in Central California. This episode is based off blogs released on Gribblenation during October 2025 and May 2026. New Idria Road is an approximately 21.5-mile rural highway located in the Diablo Range of San Benito County. It branches off of Panoche Road, and winds its way south-ish through the Diablo range to the gho
CA RxR 4.13: Route 14: The Antelope Valley Freeway (opens the original)
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Episode 4.13 continues our exploration of Route 14, picking up from the end of the first segment at I-5, and continuing to the junction with US 395 near Inyokern. As usual, along the way, we explore the history of the route, the conversion to freeway, major projects on the route, and naming along the route. This includes a detailed exploration of the start of the route in the Newhall Pass and Solemint area. It also includes an exploration of the "Aerospace Highway" name, and all the firsts that
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