7 gates at 1 foot each is a nice flow. But really you should use the river height in sharpsville reading as an indicator. 3 gates at 2 feet can put out more water than 7 @ 1.
3.5 is a nice discharge to wade, maybe a little quick, but there are lots of shallow "bars" throughout the river. If ur up to your waist move up or downstream and you will quickly find shallower water. ( no need to be intimidated by this water, but do respect it)