All* of Seward is surveyed! I found very few public bookcases (PBs) when surveying the remaining streets, which wasn’t surprising because most people put their PB in their front yard, and in Minneapolis, most front yards are on the avenues (north-south roads).
*It’s possible there are PBs in the entryways or at the base of large apartment complexes, and I didn’t attempt to circumnavigate each large apartment as that would have involved leaving the street.