Hi and Welcome to OSM!
The problem here that I see is that you marked almost a mile of stream as culvert. That is clearly not how it is in reality. The correct way how to do it is to split the stream and mark the small segment that leads through a culver as such. To split a way in the editor, rigth-click on a node and select 'split'.
Also I am not sure what "RFC" in description means, but if no one can decipher the meaning it's usefulness will be limited.