The same thing was done in the US in the 50s with the oldest continuously inhabited settlement in North America (possibly older than this one it seems): https:

The same thing was done in the US in the 50s with the oldest continuously inhabited settlement in North America (possibly older than this one it seems): https://en.wikipedia.org/wiki/Celilo_Falls https://en.wikipedia.org/wiki/Celilo_Falls The falls still exist and could be restored if the dam was removed.