Hi!

Thanks for your changes!

However, I had to correct the waterway back to a stream. This is not a river in OSM tagging sense, regardless of its historical name or width or historical local designation. Many semi-artificial streams, even based on historical streambeds and riverbeds are only streams nowadays. This one simply semi-artificially router the water around developed areas. To add, a river cannot terminate in a waterway that is lesser than itself. And this stream ends up in a canal running parallel to the dam. If it had the characteristics of a river, it would end up in Daugava or overflow otherwise.

Thanks