After a lot of searching I have at last found a link for the new river level gauge situated under the Camel trail bridge near to the Borough arms (turns out the EA had this gauge listed on the river Allen, silly old EA)

https://flood-warning-information.service.gov.uk/station/9149?direction=u

The gauge at Denby will be phased out over period of time, if you do use these gauges to determine where to fish it may be handy to note both gauge heights while the old one is still recording, it is now phased out June 2019.