After conducting research, I was unable to find a boat ramp named "Pulaski County" at the given latitude and longitude coordinates in Arkansas. Without further information, I cannot provide details about the type of boat ramp, width, or permitted watercraft. It is possible that the coordinates are incorrect or the boat ramp no longer exists.

However, there are several boat ramps in Pulaski County, Arkansas, including the Maumelle Park Boat Ramp, Murray Park Boat Ramp, and the Pinnacle Mountain State Park Boat Ramp. Each of these ramps services different bodies of water, such as the Arkansas River, Lake Maumelle, and the Little Maumelle River.

To ensure accurate information, it is important to verify the location and details of a boat ramp through reliable sources such as official government websites or local boating associations.