[6] San Carlos Street begins in the west at Bascom Avenue as a continuation of Stevens Creek Boulevard.

[7] It then heads east as a four-lane[4] road toward Downtown San Jose.

At the start of the 1900s, commercial development on the Stevens Creek Road/San Carlos Street corridor was increasing.

It was made into a major road stretching across San Jose.

In 1933, viaducts were constructed to carry San Carlos Street over the Los Gatos Creek and Southern Pacific (SP) tracks.