CA RxR 4.01: I-8, Former Route 109, Route 209, and US 80 in San Diego

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, including its historical ancestor US 80. This includes former Route 209 to Point Loma, which was part of LRN 12 and possibly US 80, and former Route 109, which became the portion of Route 8 W of I-5 (and you’ll learn why that is not I-8). Episode 4.02 will pick up the story and explore the rest of I-8/US 80 between San Diego and the Arizona Border, including a discussion of the Imperial Highway.

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):

• California Highways:
  • I-8/Route 109/Route 209 Related:
    • I-8
    • US 80
    • US 395
    • Route 109
    • Route 209
    • Route 163
    • LRN 12
    • LRN 27
    • LRN 286
  • Sign Route 8 Related:
    • Route 26
    • Route 104
    • LRN 5
  • LRN 8 Related:
    • Route 37
    • Route 12
    • Route 121
    • Route 29
    • LRN 8
  • 8th State Highway:
    • Route 194
    • LRN 36
• Gribblenation Blogs:
  • Former California State Route 109 on Interstate 8 west of Interstate 5
  • The history of US Route 80 and Interstate 8 in California
  • Cabrillo National Monument and former California State Route 209
  • US Route 80 to Point Loma?
  • The history of California State Route 49, 8 and 88 in Jackson
  • California State Route 37; the Blood Alley of San Pablo Bay
  • Disaster Tourism Road Trip Part 7; The Black Hole of Lake Berryessa (CA 37, CA 121, CA 128 and unbuilt CA 179))
  • Former California State Route 194 from Downieville to Saddleback Mountain
• Other Links:
  • California @ AARoads (Andy Field):
    • Interstate 8
    • Business Loop I–8
    • Historic U.S. 80
    • Interstate Guides: Interstate 8
    • Interstate Business Routes: Interstate 8
    • California 209
  • Southern California Regional Rocks and Roads (Michael Ballard):
    • I–8
    • Route 209

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