My boat is a 16.5' alumacraft. When we retrieved it yesterday, I could not winch the boat all the way up to the front roller because the water was so low and the angle so steep that the bow dipped below the roller. I had to leave about a foot distance between the roller and the point of the bow, drive the car up slowly and then winch it all the way up. I have done this before with this boat at the Penn Yann launch and it works because the boat is light. If I was by myself and had an 18' or larger boat, I would not use this ramp. The state ramp on the other branch would be a much better choice.