I've some catching up to do on the Kennet after a few months absence, but for a quick restart this evening there's a new offering from Shoothill which utilises the EA's river level gauges and Google's map to create GaugeMap. Fairly self explanatory...
Zoom map into desired gauge location.
Click on icon for a graphical display of recent and current river level.
Zoom map into desired gauge location.
Click on icon for a graphical display of recent and current river level.