:I followed the link and it is somewhat difficult to see the forrest for the trees.  I'll comment on the Talk:Cats page, but it dosen't look like anything near a consensus has been determined.  I'll go through the archives for more direction but my goal is to get rid of categories that have 1-5 article in them.   I really think that each bridge should belong to Cat: (Cat:Bridges in Oregon), and if applicable Cat: (Cat:Toll roads in Oregon).  From my experience those seem like the most meaningful categories (from the standpoint of the category page itself, it makes the articles have a lot of categories).