Historical Tour of US 6 / US 99

/  - US 6 / US 99 Junction - Tunnel Station

In 1911, the bridge shown above was built. It was widened in 1936. The bridge was built as a part of the Ridge Route. Before 1930, there was no intersection here. In 1930, the Newhall Alternate was completed between Tunnel Station (here) and Saugus Junction bypassing Newhall and Saugus. US 6 was extended here in 1937.

Map of the intersection as it looked 1934-1954.

Sierra Highway heads north, US 99 heads northwest, US 6 and US 99 leave on the road marked with a 4 to the south. The red line heading south, ending on Sierra Highway, is old Foothill Blvd (extended here in 1934).

US 99 / US 6 Junction in 1996

US 99 / US 6 Junction in 1971 - Looking northwest through tunnel.

Map of the 1954 freeway interchange.

Traffic was snarled here for many years before the new three level interchange was built at the US 99 and US 6 junction.  In 1954, a segment of the Golden State Freeway was completed. It ran from the San Fernando Road / Sepulveda Blvd junction to near the top of Weldon Summit.  This photo shows the three level interchange that was once in use here. Starting from the top, US 99 is on the top level, US 6 is on the middle level, and a ramp from US 6 to US 99 is on the third level. This interchange was in use until the modern interchange between I-5 and SR-14 was built in 1971. That interchange had to be rebuilt due to an earthquake the same year. In 1994, the I-5/SR-14 interchange was rebuilt yet again after two of the bridges collapsed.

Looking west towards the 5 / 14 interchange.

Underneath the 5 / 14 interchange looking north from The Old Road. This photo was taken in 1997.

Historic photos of the US 6/US 99 interchange

Go East on US 6 and North US 99 (1926-1930)

Go North on US 99 to Bakersfield

Go South on US 99 / West US 6

Go East on Foothill Blvd. (LR 157 and SR-118) to Pasadena

Return to US 99 Introduction Page