Shrinking Numbers

Smaller numerals on California 13 freeway entrance marker in Oakland

In 2005, Caltrans replaced several California 13 markers at freeway entrances in Oakland with newer markers. Strangely, the numerals for the route number 13 were perhaps half the size they were before. The numbers also appear to be made of a highly reflective material that's different from the usual numerals that appear on California route markers.

This sign assembly is just off Redwood Road at California 13 in Oakland.