According to the North Carolina Wildlife Resources Commission, the boat ramp named East Main Street 302 in Williamston is a public boat ramp located on the Roanoke River. The ramp is approximately 25 feet wide and can accommodate small to medium-sized boats. The water body it services is the Roanoke River, which is a popular spot for fishing and boating in the area.

As for the type of craft permitted on the water, the North Carolina Wildlife Resources Commission states that all types of boats are allowed on the Roanoke River, including kayaks, canoes, motorized boats, and sailboats. However, it is important to note that boaters must follow all state regulations regarding boat size, horsepower, and safety equipment.

It is recommended to verify the latest information on the North Carolina Wildlife Resources Commission website or by contacting the local authorities to ensure accuracy.