After conducting research, I was unable to find a boat ramp named Potato Lake in Wisconsin at the given coordinates of 45.32626724 latitude and -91.43948364 longitude. Therefore, I cannot provide accurate information on the type of boat ramp it is, its width, the body of water it services, or the type of craft allowed on the water.

However, it's important to note that Wisconsin has many beautiful lakes and waterways that do have boat ramps with varying sizes and restrictions. It's always best to research the specific body of water you plan to access and verify the latest information on the boat ramp, including any launch fees, parking restrictions, and safety regulations.