Category Archives: Los Angeles County

Advocacy, Bicycling, Los Angeles, Los Angeles County, San Diego, San Diego County

San Diego Slow Streets

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Many cities throughout the US have implemented a “slow streets” program to help make it easier for people to get out and exercise during this crisis. In San Diego, this has taken on the form of a “light” closure of some roadways. This means that the roadways aren’t closed entirely to motor vehicles, but through traffic is discouraged by the use of signs and barricades at various intersections. In doing so, bicyclists and pedestrians are given more room on the street.

I strongly encourage everyone to check these out in your city. If you think the program should be expanded, let them know! I know the ones here in San Diego have been helpful. We’d love to hear your thoughts as well.

For the City of San Diego:

https://www.sandiego.gov/tsw/programs/slow-streets-program

For the City of Los Angeles:

http://ladot.lacity.org/coronavirus/apply-slow-street-your-neighborhood

Caltrans, District 7, East Los Angeles, Highways, History, I-10, I-5, Los Angeles, Los Angeles County, Road Signs, Roads, Southern California, SR-26, SR-60, US 101, US 60, US 70

East Los Angeles Interchange Signage

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In 1958, when the East Los Angeles Interchange started to be built, the routes that were planned to go through it were a little different that what is there today. I-10 was originally to be State 26 and I-5 was a part of US 99. US 101 remained the same. State 60 was to be State 26. The routing of the interstates through cities wasn’t quite settled yet and many of the roads were planned to be State or US routes.

After the signs were installed, some of them were temporarily overlaid until the Pomona Freeway connections were completed. A portion of the original route planned for that freeway, State 26, was visible. While some have speculated it was actually US 60 underneath there, reverting to State 60 after the 1964 route renumbering, these plans show otherwise. How far east the State Route 26 signage would have gone does remain unknown. It is likely it would have gone at least as far as the 57, if not all the way to the 71, as US 60 was effectively terminated at the present junction of I-10 and State 71 about 1960.

1958 plans for signage at the I-5/I-10/US 101/SR-60 Interchange (58-7vc41)
1958 plans for signage at the I-5/I-10/US 101/SR-60 Interchange (58-7vc41)
Plans in 1960 reflecting the shift to more Interstates routes (60-7vc5)
Plans in 1960 reflecting the shift to more Interstates routes (60-7vc5

For additional photos and information about the interchange, head on over to the East Los Angeles Interchange page.

East Los Angeles Interchange Complex
California, Highways, History, Los Angeles County, Old Alignment, Ridge Route, Roads, Southern California, US 99

Views From The Ridge Route

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In December 2019 and January 2020, I had the chance to take a couple of trips over the Ridge Route. Once this current situation is over, I fully intend to get back up there for a multitude of reasons. As I cannot get up there at present and we’re all still on some form of “lockdown”, I thought I’d share some of the photos I took up there. The Ridge Route is a very scenic route, far more than I-5 or even the “new” alignment of US 99. They all have their merits but the Ridge Route gets the best of the views. Just an FYI, some of these pics may be from earlier trips. Maybe you be the judge? Which is your favorite?

Care to help preserve the road? Head on over to the Ridge Route Preservation Organization to see what you can do to help and perhaps have the opportunity to traverse the Scenic and Historic Ridge Route.

  • Deadman’s Curve in Grapevine Canyon
  • Near Tejon Summit
  • Toward Liebre Summit
  • Toward Black Mountain
  • Down Serpentine Grade
  • South of Reservoir Summit
  • North of Reservoir Summit

Fault, Geology, Image, Los Angeles County, San Gabriel Mountains

Featured Image – 4/17/2020

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Step faulting, slickensides, and heavily fractured rock

The San Gabriel Mountains have been subject to quite a bit of deformation in their past. Some of which is still ongoing, such as the movements along the Sierra Madre and San Andreas Faults. Here, near Mt Wilson, the rocks exhibit multiple instances of deformation. The white vein is mostly composed of quartz, which has been offset by multiple faults. Slickensides can be seen as the reddish areas on the right side of the photo. The surrounding materials are complex metamorphic rocks.

Castaic, Highways, Los Angeles County, Ridge Route, Roads, Updates, US 99, Website News

New Ridge Route Tour Addition

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A well-photographed portion of the Ridge Route, known as the Callahan Line Change, is now a part of the Virtual Tour of the Ridge Route. This is a section that had become somewhat obscure because of later freeway construction. For more detailed information –

Ridge Route – Callahan Line Change