Oups, sorry : I changed this because incoherences between the culvert and the canal area = the last one was drawn with a width of 5 meters under the bridge, incoherent with the culvert.

So I improved that area but in the wrong way.

I just made other changes, hope it's better https://www.openstreetmap.org/way/925258534#map=19/52.77990/-3.09442

Best regards