Hello, GeographRick, per the guidelines for the classification of motorways in the US (https://wiki.openstreetmap.org/wiki/United_States/2021_Highway_Classification_Guidance#Motorway), these small stretches of highway with grade separations which you have upgraded to motorways should not be tagged as such. A disconnected motorway should be at least a couple miles long and have multiple interchanges rather than just one, per the page I linked. Examples of correctly-tagged isolated motorways would be the Kokomo, IN bypass and the Wilmington, OH bypass.