^ That's a good spot for a cap if ever there was one. The foundations already exist (a future cap was planned into the 1990s rebuild of the highway) so it should be possible to build with a minimum of fuss and cheaper than in other cities. Plus the highway is depressed enough that the park would be essentially level with the surrounding area, which is important in making the park open and welcoming.
Another interesting tidbit is that the foundations can theoretically support up to a 4-story building, so if park space is not financially feasible, perhaps Cincy could make it work with private developers and a series of small office or residential buildings.
more info here:
https://www.cincinnati-oh.gov/cityof...D8A58E1E6C.pdf
Also St Louis did a small cap over I-70, very similar situation to Ft Washington Way.