CA RxR 4.14: Bonus: New Idria Road and Hites Cove Road

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 ghost mining town of Idria, continuing as Clear Creek Road. Hites Cove Road is an approximately seven-mile rural highway corridor located in the Sierra Nevada range of Mariposa County, south of Route 140, and west of El Portal. Hites Cove, and its successor forest and OHV trail roads, leads to the ghost town of Hites Cove on the south fork of the Merced River. Two interesting stories about two interesting ghost towns. Next up: Our second bonus episode to close out Season 4: A roundtable discussion with Adam Prince and Doug Kerr as we celebrate the 25th anniversary of the start of Gribblenation.

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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Episode 1.01 – Before 1920 – Building a State Highway SystemEpisode 1.01 – Before 1920 – Building a State Highway System

Welcome to the first season of California Highways: Route by Route. This first season will be establishing the background listeners will need for our subsequent route by route podcasts. We’ll start with a history of the state highway system. We’ll then explore how highways are numbered in the state. Lastly, we’ll look at how highways are named, and some of the organizations involved with state highways.

This first episode explores the start of the state highway system. We’ll start with the humble beginnings with the first routes defined by the legislature, and then go into the routes defined by the first three bond acts. We’ll also explore the Good Roads movement, and we’ll have a special interview with Adam Prince of Gribblenation.

Here’s the link to the show:

Here’s a link to the show on anchor.fm:

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CA RxR 2.13: Bonus – Fastrak and Tolling (Part 1)CA RxR 2.13: Bonus – Fastrak and Tolling (Part 1)

As promised, here are a few bonus episodes to tide you over during the break between Season 2 and Season 3. In this episode, we have the first half of an interview with Joe Rouse of Caltrans, talking about HOV Lanes, Express/Toll Lanes and Bridges, and Fastrak. There are two more bonus episodes in the pipeline. Episode 2.14 will be the second part of this interview, and Episode 2.15 will explore auto trails. Regular episodes should resume around September with Season 3, which will cover Route 3 through Route 7.

Here’s the link to the show:

And here’s the link on Spotify for Podcasters:

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CA RxR 3.06p1: I-5: Whatever Became of the Ridge Route? (Part 1)CA RxR 3.06p1: I-5: Whatever Became of the Ridge Route? (Part 1)

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 Route 5S (Colorado Blvd), and a dive into the history of routings through the Newhall Pass and in Saugus. We also talk about the Interstate number submissions for I-5, and have some updates on the projects we discussed in Episode 3.05p2. Our special guest this episode is Sydney Croasmun of the Ridge Route Preservation Organization. Sydney brings her expertise to our discussion in Part 2, when we’re going in detail over the Ridge Route. Part 2 also discusses projects and naming in this section, especially the history of the “Grapevine” name. Subsequent episodes will be looking at (3.07) the Westerly Routing; (3.08) the planned I-5W; (3.09) the former US 99W portion from Sacramento to Redding; and (3.09) the portion from Redding to the Oregon Border.

Here’s the link to the show:

And here’s the link on Spotify for Creators (Spotify changed names yet again):

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