I don't have big problems with the sidewalk construction (what's on it is another matter), but the state of the roads is pretty shocking sometimes, and very noticeable when cycling - ideally I would be able to trust the road surface and mostly keep my head up looking for people, vehicles and traffic signals but I also have to keep checking for potholes, gratings that can swallow a wheel and cause a nasty crash, and those big metal plates sticking up a few inches that seem to left for weeks at a time covering up a hole in the street. This is particularly bad downtown.