There is now a webcam sited at the Avon Mill Garden Centre:- http://www.avon-mill.co.uk/
There is some measuring equipment downstream of Loddiswell New Bridge, this is the way to access its measurements:-
http://environment-agency.wales.gov.uk/homeandleisure/floods/riverlevels/riverstation.aspx?StationId=3218&RegionId=5&AreaId=8&CatchmentId=40
There is a webcam at Venus Cafe, Bigbury on Sea, mainly used by surfers :- http://www.bay.tv/bigbury-on-sea-webcam,2670