Is there a reason you changed two of the John Deere service roads to racetrack?

The reason Iowa's townships are not mapped is that they are not their own governments, but instead are classified as subordinate agencies of county governments, therefor making it part of the local county and not a separate entity.

Hello, I marked these as demolished a little while back, they do not exist any more. Just keep the 'demolished' tag in mind in the future. Keep up the good mapping!

Hello, I hope you realize that OpenStreetMap is for only real infrastructure taken most often from satellite and aerial photography. The edits you are making are not from any real sources, and appear to be intentional vandalism. This is not beneficial, and it takes other's time to fix. Please refrain from doing this in the future.

Source is not necessary, I forgot to remove it from my previous edit

I will re check when I drive by tomorrow to be sure. Since I live near here and bike by regularly, I know that the SB ramps closed a few weeks past the closure of the bridge, and the NB ramps closed more recently, and I updated them as of when they closed. From what I know, the ramps won't reopen until I35 SB is moved back over. Since I last checked about a week ago, the ramps were demolished, but I'll check again tomorrow. When the ramps reopen, I plan on marking them as open on OSM.

There's no reason to remove the roads.If they are private, mark the roads with tag access=private and if there is a hazard, add hazard=(hazard). By removing the road, you make openstreetmap less accurate.

In the future please give a short description of your edit.