There is no online gauge. You can go to the following link to get Duke's rolling 3-day planned generation / release schedule. https://lakes.duke-energy.com/index.html#/flow Remember that you need to use the dropdown menu to switch to the Green / Broad river basin. Releases are expressed in % of units. 100% of 1 unit is an OK level. 200% is sweet.
Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.