Category Archives: I-5

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.

Highways, Historic Highway 99 Association of California, History, I-5, Los Angeles County, Meeting, Old Alignment, Old Bridge, Presentation, Roads, Santa Clarita, SR-14, US 6, US 99

September 2021 Presentation

Aside Leave a comment

Join the Historic Highway 99 Association of California for a presentation on the history of US 99 and the Newhall Pass on September 14, 2021 at 6pm via Zoom. The history of the roadway will be covered from the Newhall Tunnel in 1910 to the HOV ramp at the I-5 / State 14 interchange in 2012. Q&A to follow the presentation. Please register using the link below.

https://us06web.zoom.us/meeting/register/tZcrc–rpzIoGdxQYOYkViOpSZQHqw2rEpl1

Archives, California, District 7, Highways, History, I-5, Image, Los Angeles County, Roads, Southern California, SR-14, US 6, US 99

Featured Image – 7/22/2021

Image Leave a comment
US 6 / US 99 Interchange in 1955. Courtesy – Caltrans

In 1955, the first section of the Golden State Freeway opened. It was a short section, running from near Weldon Summit to Foothill Blvd. The freeway was the first major attempt to improve traffic in the Newhall Pass area and it did help for a time. The freeway remained until the early 1970’s when the new I-5 / State 14 interchange was constructed and the old freeway was reconfigured to become the “Truck Lanes”.

Today, the original interchange still remains, though not entirely used. The lower level, formerly the US 6 West to US 99 South connector, is now partially filled in. The second level still carries Sierra Highway with the top level carrying the I-5 Truck Lanes. The Newhall Pass has undergone many changes in its time as a transportation corridor for Los Angeles. This one was but one of those. The photo was taken on November 22, 1955.