Saugus Junction was the junction of SR-126 East and US 99. It marks the northern end of the Newhall Alternate, which US 99 followed bypassing Newhall and Saugus. That alignment was completed in 1930. The intersection was reconstructed in April 1949 when US 99 was upgraded to a four-lane expressway. Later, in 1964, the construction of I-5 prompted another change to the intersection, as demonstrated in the photo below. The old intersection is to the right with the new one to the left. I-5 was completed here between Saugus and Castaic Junctions on December 22, 1964.
That section, which is shown below, was widened to a four lane highway, as shown here in April 1949. The next photo was taken near McBean Parkway looking north in 1997.
This was also where the Ridge Route joined US 99. Now, SR-126 joins I-5 to Castaic Junction.
Go North on US 99 / West SR-126 to Bakersfield / Ventura