Based on the latest information available, the New Johnsonville Boat Ramp in Tennessee is a concrete boat ramp that is approximately 30 feet wide. The ramp is located at latitude 36.01761627 and longitude -87.9885788.

The boat ramp provides access to the Tennessee River, specifically Kentucky Lake. Kentucky Lake is a popular destination for recreational boating, fishing, and other water activities.

The ramp is designed to accommodate a variety of watercraft, including powerboats, sailboats, kayaks, and canoes. However, there may be certain restrictions on the types of boats that are permitted on the water, depending on local regulations or seasonal factors.

Overall, the New Johnsonville Boat Ramp appears to be a well-maintained and popular access point for boaters and water enthusiasts in the Tennessee River region.