All I tried to do is drawing some bridges when I saw streets intersecting with waterways. But the servers were so slow I got server conflicts from my own, dubling and tripling the roads that were there, placing one node ways, POI's without tags ...

can someone clean up the mess I made?

I'll try to clean it up later (when the servers are better) if no-one does.

osm.org/?lat=51.197007&lon=3.225525&zoom=18&layers=B000FTF