US 99 – Weldon Canyon

Historical Tour of old US 99

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Weldon Canyon

This photo shows US 99 in 1949. It is looking towards the US 6 / US 99 junction.
This photo shows US 99 in 1949. It is looking towards the US 6 / US 99 junction.

The first highway through Weldon Canyon was completed in 1930. The “Newhall Alternate” was the first major realignment of US 99 south of the Ridge Route. In 1949, passing lanes were added as a temporary measure from Tunnel Station to just north of Weldon Summit until the freeway could be constructed. In 1954, US 99 was upgraded to a freeway through here, ending south of the summit. North of the summit, the freeway merged with the 1951 expressway in Gavin Canyon.  In 1968, the area was changed yet again, and in the most drastic way, as the roadway was rebuilt as Interstate 5.

Weldon Summit in 1951. Looking South. Currently, the lanes visible exist but the concrete is buried under dirt and asphalt.
Weldon Summit in 1951. Looking South. The lanes visible still exist but are buried under dirt and asphalt.
Former southbound lanes partially visible just north of the summit.
Former southbound lanes partially visible just north of the summit.
North view of the old southbound lanes just south of the summit.
North view of the old southbound lanes just south of the summit.
Looking south into Weldon Canyon. I-5 cuts the old southbound lanes off at the fence line.
Looking south into Weldon Canyon. I-5 cuts the old southbound lanes off at the fence line.
Double white striping from a "temporary" four-lane configuration of the old three-lane concrete. This was done in 1949 as an interim measure before the road was reconstructed as an expressway in 1951.
Double white striping from a “temporary” four-lane configuration of the old three-lane concrete. This was done in 1949 as an interim measure before the road was reconstructed as an expressway in 1954.
This is the last remaining uncovered stretch of the 1930 Newhall Alternate concrete. Motorcycle is on the 1951 alignment.
This is the last remaining uncovered stretch of the 1930 Newhall Alternate concrete. Motorcycle is on the 1954 alignment.
Contractor's Stamp on the concrete shown above.
Contractor’s Stamp on the concrete shown above.

It reads :

Jahn & Bressi
Contractors
6 17 1930
Station 64 + 00

Go North on US 99 to Bakersfield

Go South on US 99 to Los Angeles

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