I don’t know how often a sidewalk needs repaving. But this certainly looks like a WPA signature on a sidewalk in Davis, on the north side of First Street between B and C.
If that’s what it is, it’s a nice illustration of the scope of the WPA; it’s a point that can’t be made frequently enough and is nicely made in Jason Scott Smith’s book, that the WPA’s reach was one of the things that made it simultaneously so popular and so unpopular. The project for Dixon was a boondoggle, of course, but the project for Davis was vital to the improvement of infrastructure.