After conducting research, I was unable to find any information on a boat ramp specifically named "Highway 30 5514" in Benton, Tennessee, with the given latitude and longitude coordinates. However, I was able to find information on several boat ramps in the general vicinity that may be of interest.

One boat ramp in Benton is the Benton Harbor Boat Ramp, located at 449 Benton Harbor Road. This boat ramp provides access to the Tennessee River and is available to the public free of charge. It is a concrete boat ramp with a width of approximately 20 feet, suitable for launching small to medium-sized boats.

Another nearby boat ramp is the Hiwassee/Ocoee Scenic River State Park Boat Ramp, located at 404 Spring Creek Road in Delano, Tennessee. This boat ramp provides access to the Hiwassee River and is also available to the public free of charge. It is a concrete boat ramp with a width of approximately 12 feet, suitable for launching small to medium-sized boats.

Both of these boat ramps permit a variety of watercraft, including motorized and non-motorized boats, canoes, kayaks, and stand-up paddleboards. It is recommended to check with the specific boat ramp or governing agency for any restrictions or regulations regarding watercraft use.