This site shows the water level at Stillwater, it’s 681.5 right now: http://www.dnr.state.mn.us/safety/boatwater/nowake/index.html
I was out when it was 683.1 and the water was several feet up the ramp at the Hastings Jaycee Park launch. I just drove by on the water so I didn’t look too hard but from what I saw I would not have attempted putting in there at that level. That one has no dock and there is usually a sand beach for your boat but it was completely covered with water into the trees.