Considering that there are 3 interstates in Cincinnati and I 75 is one of the most highly traveled in the country, is would be a surprise to expect that there would not be construction a lot.
Also take into account that when it was first built, it was only 2 lanes each way which was never sufficient, and that they have had little or no room for expansion without tearing out a lot of housing and commercial buildings.
Also take into account the the highway engineers never seem to look much into the future when they plan expansions.
A couple of years ago the city rebuilt a bridge over I 75 and left very little expansion room under the bridge. Now when they decide to add lanes they will have to tear down the new bridge and start over.
I have become convinced that highway engineers never have to drive on the roads they design, therefore they don't care if they are usable by the general public. (I think they follow the engineers in the auto industry who design cars, and engines that they never need to do repair or maintenance work on)
Jim Hunter