All along our walk we were seeing these large boxes with various decorations and all referencing http://www.capitolboxart.com.
From the website: “Artists were selected based on past work and paid to create a design (or designs) that was transferred to vinyl, and wrapped around a City of Sacramento traffic utility box. The vision is that by using these “blank canvasses” as a platform for the artistic community graffiti will be eliminated creating a beautiful, safe, inclusive, and interesting environment for pedestrians and commuters alike.”