We put in off of Mill Gap. There is a barely visible guage on the bridge at the take out. You can make out a 2 and a 4 and some slash marks in yellow. We ran it at about 1 on that guage. It was enough but could have used a little more water. We portaged wood 3-4 times and got under trees that would have to portaged at higher levels. There are 3 fences that cross the river. The first 2 are back to back about 100 yds from our put-in. Its electric fence wire and easy to get through in your boat. The last one is at the bottom of the run (a mile? from the take out) and is 3-4 strands of barbed wire. Its in swift water but as long as you see it you should be able to eddy out on either bank. Edit

When I did it, Waites run gauge was probably around 4.25 and dropping. There is a steep, congested section toward the bottom where logs can jam, followed by a nasty hole at the top of a very large pool, followed by a big log jam that I barely snuck under and which could easily change. On site, when I did it, the low-water bridge at the Hemlock Wilderness Brigade had the barest, unrunnable trickle passing over the bridge; this level was somewhat abusive, but passable. If there's enough water to paddle over the road, that would probably be a good level. If there's an ugly hole behind the road, that might be intense! I didn't see a gauge at Rt 55, but maybe I missed it, even though I took out there.