Category Archives: I-5

Castaic, Event, I-5, Los Angeles County, Ridge Route, Ridge Route Preservation Organization, Route Fire, Santa Clarita, US 99, Wildfire

Route Fire – Updated 1730

From the Ridge Route Preservation Organization:

Another wildfire has started at the south end of the Ridge Route in Marple Canyon along the 5. This fire, known as the Route Fire, has so far burned 250 acres and is not contained. The fire has burned across the old Ridge Route at the Callahan Line Change location, about 2 miles north of Castaic. Evacuations are underway as far north as Templin Highway. The fire has burned as far north as Martin’s, south of Templin Highway. It is not known if the structure survived.

At this time, I-5 is closed from State 138 to Castaic. The Ridge Route is also closed to through travel from Castaic to State 138 as the gates are closed. Do not use any portion of the Ridge Route as a bypass for I-5 at any time as it is not built for heavy traffic. Big rigs have attempted this in the past and got stuck, blocking others in.

For further information regarding road closures and detours, we strongly recommend Caltrans Quickmap at https://quickmap.dot.ca.gov/ which has detailed information and updated traffic conditions.

We will post updates, as needed, if the Ridge Route itself or historic structures are damaged or in danger. After the fire is out and things have settled down, we will assess any damage to the roadway and post a report.

District 7, Highways, History, I-5, Image, Los Angeles County, Old Bridge, Roads, Santa Clarita, US 99

Featured Image – 8/21/2022

Image 4 Comments
1929 culvert beneath I-5, at the lower left of the photo. Taken 2022.

Hidden below I-5 just north of Valencia Blvd next to a drainage basin, a bit of US 99 history remains in Santa Clarita, California. A culvert, dating to 1929, has survived through an expressway upgrade in 1949, freeway construction in 1967, bridge replacement construction in 2001, and current widening work in 2022. How much longer it will last is unknown but so far it has withstood the test of time.

US 99 – Pico Canyon Road
Castaic, Highways, History, I-5, Image, Los Angeles County, Ridge Route, US 99

From the Archives – 1923

Image Leave a comment
1920’s postcard of the Ridge Route near Castaic, CA

The Ridge Route on US 99 between Castaic and Gorman was a very twisty roadway when it first opened. All told, there was about 39,600 degrees of curvature over the approximately 30-mile route, enough to go in 110 circles. The state gradually worked to alleviate this headache by straightening curves whenever possible. Some curves were merely daylighted where others were completely bypassed. In the case of the Callahan Line Change, as shown in the postcard above, the road was shifted to change eight sharp curves into one gentle curve. The work here was completed in 1926. In 1933, the roadway would by bypassed altogether by the Ridge Route Alternate.

Ridge Route – Callahan Line Change
Caltrans, District 12, Highways, History, I-5, Image, Old Alignment, Orange County, Roads, US 101

Featured Image – 12/4/2021

Image

From the Archives – 1959

Looking southerly at US 101 (Now I-5) at Avery Parkway in 1959. Courtesy – Caltrans.

A lot has changed in southern Orange County since 1959. Gone are most of the orange groves and wide-open spaces. Today, this view is very different but a surprising amount of what is seen does remain. This photo, taken in 1959, shows the US 101 freeway and the original alignment to the right, known as Camino Capistrano. In the intervening years, the roadway has been widened at least four times. Instead of a four-lane freeway, it is now eight lanes plus two HOV lanes. Even today, the roadway is being widened yet again, this time to add an additional HOV lane in each direction. The State 73 freeway interchange is also missing from this view. It would be added in 1996.

Some of the concrete visible in this photo on both the freeway and old alignment still remain to this day. It is truly amazing to see what things looked like before they became one giant suburban mess.

California, Castaic, Disaster, Event, Highways, I-5, Los Angeles County, Ridge Route, Ridge Route Preservation Organization, Roads, Wildfire

Fire on the Ridge Route

Leave a comment

There is currently a fire, #RouteFire, burning on the Ridge Route near Templin Highway. I-5 is closed both directions and the Old Ridge Route may be in danger. For information, follow the Twitter feed for the Ridge Route Preservation Organization – @ridgeroute99.