I haven't spend much time in Cincy over the past 4 or 5 years, but it looks like a paved shoulder to me. I've never seen a bike lane in Cincy, just a lot of "Share the Road" signs. That road is probably pretty popular with cyclists and someone finally got around to putting up signs.

The sharrows we have up here are on streets that are frequently used by cyclists but are too narrow to support a bike lane. The problem with them is exactly what Eden described--and some of the cops think that way too, at least by anecdotal evidence. Since you can be ticketed for taking the lane, this has the potential to be a bit of a problem.

(I really hope that they do get around to connecting all the trails up, though. Riding down to the Ohio sounds like it'd be awesome. I'd just need a ride back up. )