Winter driving on the backroads

Is closing the interstates around Sioux Falls a good idea in a mediocre snowstorm?

I debated this on my morning commute on the less-than-beaten-path roads of Minnehaha County this morning. Hopping on the interstate would have been so much easier and more direct than taking the roads less traveled.

It seems like the driving conditions of most of the roads I took were pretty fair. I’m guessing the interstate had to be too, probably even better. Gravel roads were a different story, but as long as they were paved (especially the north-south roads) they were acceptable.

I honestly can’t figure out why Interstate 29, especially, was closed immediately north of Sioux Falls, at least within the county. It just makes driving worse for commuters.