Category Archives: Riverside County

US 99 in Indio, CA

Old US 99 still has some gems remaining in the Coachella Valley. On of these is a set of railroad overpasses dating from 1936 and 1956 (56-09R/L). These structures may be replaced in the near future, so I took the opportunity to take some photos of them before they are gone. Each structure is different in type of construction as well as design. The 1936 structure retains its solid concrete railing, something somewhat unique for the period. Most bridges of that era had a more open and arched railing. This bridge has a very much “Art Deco” styling which still looks quite nice today. The bridge carried all US 99 traffic until 1956, when US 99 was upgraded to an expressway through this area. At that time, a second bridge for southbound/eastbound traffic was built. The 1956 span, a steel girder structure, is longer than the 1936 span. This may be due to plans, at that time, to eventually replace the 1936 bridge with a newer and longer span. While these plans may have been initially thwarted by the construction of I-10 on a new alignment east of here, the bridges days are indeed numbered with the reconstruction of the Jefferson St interchange and eventual realignment of roadways in this area.

These bridges are located on Indio Blvd just east of the Jefferson St interchange on I-10 in Indio, CA. Enjoy them while they last.

Detail of 1936 railing and date stamp.
Detail of 1936 railing and date stamp.
Recessed reflectors in the 1936 bridge end caps.
Recessed reflectors in the 1936 bridge end caps.
FAP (Federal Aid Primary) project sign on the 1957 bridge.
FAP (Federal Aid Primary) project sign on the 1956 bridge.
Comparison between the 1936 rail and 1957 rail.
Comparison between the 1936 rail and 1956 rail.
The different lengths of each bridge is well demonstrated in this photo.
The different lengths of each bridge is well demonstrated in this photo.

Old concrete near Riverside, CA

In the Belltown area of Riverside, CA, I found a rather interesting concrete roadway on 24th St. It appears to be a part of a former alignment of either Rubidoux Blvd, Market Street, or combination of the two. It dates to August 1931 and is in very good shape. What I found most interesting was the curve at Avalon St, which seemed to suggest its former importance as a Riverside to Colton roadway.

Looking westerly toward Avalon St on 24th St.
Looking westerly toward Avalon St on 24th St.
Curve at Avalon St, looking easterly.
Curve at Avalon St, looking easterly.
Date stamp from August 20, 1931.
Date stamp from August 20, 1931.

Why this roadway was built and when it was bypassed may remain a mystery for some time, however, it does show that you can still find old treasures like this in Southern California.

Highway Resources Page

I’ve recently added a new section to the socalregion website. I noticed the site was lacking in resources for local roadways. In particular, information on how to contact various local agencies for road projects, logs, and maintenance. With this in mind, I’ve added a new page to help others get their roads fixed and find out more information about those roadways. I’ve called it the “Southern California Highway Resources” page, which can be found on the Southern California Highways page and via this link.

Southern California – Defined?

This website started off covering a small area, the Santa Clarita Valley. I later started a second website for the San Diego area. Both sites were somewhat limited in scope. Now, with those sites combined, I’ve also increased the area that the website covers. The new name for the site, Southern California Regional Rocks and Roads seems to state a much larger area. What really is Southern California and what does part of it does this website really cover?

The region, Southern California, or So Cal by some, varies by definition. My definition isn’t exactly a standard one either but I think it is the best fitting one. Southern California is usually defined as the whole of Ventura, Los Angeles, Orange, San Bernardino, western Riverside, and San Diego Counties. This constitutes much of the populated section as well as the area west (or south) of major mountain ranges. This definition leaves out quite a large area, however. It really should be “Coastal Southern California”. How do I then define Southern California and what area I plan to cover with this website? I personally define Southern California as the area south of the 119 degree line, which tends to define the northern boundaries of San Luis Obispo, Kern, and San Bernardino Counties. This site, however, will cover a smaller portion of that region. This website will cover, eventually, the region encompassing all of Santa Barbara, Ventura, Los Angeles, southern Kern, San Bernardino, Riverside, Orange, Imperial, and San Diego Counties.

I’ve sometimes termed this website to be a “monster”. Why do I? Every time I think it is “done”, I come up with more projects to expand the site. There is a lot to cover here in Southern California and I intend to do the best job that I can for the scope of the site. Defining those boundaries will help to at least partially limit the site’s growth.

Wineries of Cucamonga Valley – Now Online!

As planned, our new addition to the wineries page, a site on the wineries in the Cucamonga Valley of San Bernardino and Riverside Counties is now online. This new website was written by our wine correspondent, Russ Connelly of San Diego. Mind you, there are only three wineries, but these three have some really good stuff. I recommend checking it out and experience some of the last remaining local wine making in the Inland Empire.

Earthquakes and Movies

Lately, there has been quite a bit of press about the recent “San Andreas” movie. To me, this movie sets back the general public’s knowledge and understanding about how earthquakes create damage in Southern California.

Some basic stereotypes exist in the movie, many of which are completely false. Starting with the magnitude of the earthquake in the movie – No fault line in Southern California is capable of anything larger than about an 8.2. The only one truly capable of such an event, the San Andreas Fault, is also many miles from Los Angeles and is mostly separated from the Los Angeles Basin by the San Gabriel Mountains. Anything larger than a 9.0 is in the domain of “megathrusts” or subduction zones. In California, the only subduction zone is the southern end of the Cascadia Subduction Zone, which ends at the “Mendocino Triple Junction” just offshore of Cape Mendocino. It last produced something close to a 9.2 or so in January 1700.

Tsunamis, especially ones of great height, are also not in the forecast for a large earthquake here in Southern California. Tsunamis are created by the large scale displacement of water, similar to sloshing in a bathtub. Move your hand below the water quickly, you create a wave on the surface. Usually, tsunamis that are related to earthquakes are caused by the movement of the fault itself, typically megathrust faults underneath the ocean. We just don’t have those in Southern California. Even the largest tsunami generated by such a fault may only be tens of feet high, certainly not hundreds of feet.

Big cracks just don’t open up in the land from earthquakes, certainly nothing like those represented in the movie. Fissures are created by earthquakes, however. These fissures are usually the result of settlement or fault movement. They aren’t that large either way.

Structural damage is also not going to be as great as represented. Mind you, a large magnitude earthquake centered in the Los Angeles Basin will do a great deal of damage. Water mains, sewer mains, gas lines, power lines, and other utilities will be compromised in many locations creating shortages and, in some cases, fires. Buildings may collapse or be damaged beyond repair. The underlying geology will determine some of the damage extent. The rest will be determined by building type and its susceptibility to seismic waves. Either way, the skyscrapers in Downtown Los Angeles won’t be toppling like trees anytime soon. I’d still stay away from the area after a major event though, as there would be an immense amount of glass and debris creating hazards for travel.

Keeping all this in mind, and also keeping with the theme that Southern California officials have been doing, use this opportunity to prepare yourself for a major earthquake. They can strike at any time and will create problems for all of us that live, work, and visit this region. The best way to survive a major catastrophe is to be prepared. Part of that preparation is to know your region, know the routes, and know where the problem areas may be following a major earthquake.

For further information, I highly recommend contacting your local Emergency Services agency in your city and county. They have a great deal of resources to help you prepare for an event like a major earthquake.