This is pretty wild. As others have said, I have bare concrete in some areas and then foot to foot and a half drifts in other areas and maybe even deeper. There's really no way to determine the actual amount of snow. I'm going to try to measure some areas that look to be not affected by the wind so much.
From the looks of the amounts of snow I'd say that the NWS did a pretty good job of predicting this one, especially with how variable the temperatures and moisture content were.
According to this, there is a pretty big drop off in amounts going from Des Moines to Northeast of Des Moines.
View attachment 94412