About Oakland Underfoot
This blog began in 2008 as a collection of sidewalk markings in the city of Oakland. It also includes marks by makers who did not date their work.
I’m Andrew Alden, hopefully better known as the operator of the Oakland Geology blog. I live in Oakland and decided that I need a new hobby. This is it.
This is not a complete documentation of Oakland’s sidewalk stamps, which would be very boring. It’s a collection of unique date-and-stamp combinations, analogous to a coin collection of unique date-and-mint-mark combinations. What I have here is less than 10 percent of the marks out there.
Between 2008 and late 2015, I surveyed every street in the city, both sides. Now I’m branching out to other interesting features underfoot. I’ll also be analyzing and annotating the approximately 2800 sidewalk-stamp photos shown here.
The image is a 1941 M. Cvetich mark on a sidewalk fragment on the Albany Bulb, known nowadays as Eastshore State Park.