I apologize, but there seems to be some misinformation in the question. Lake Winnebago and Quinney Road Boat Launch are actually located in Wisconsin, not Kentucky. Lake Winnebago is a freshwater lake in east-central Wisconsin, while Quinney Road Boat Launch is a public boat ramp located on the south shore of the lake, near the town of Stockbridge.

According to the Wisconsin Department of Natural Resources, Quinney Road Boat Launch is a concrete boat ramp with a width of 18 feet. It provides access to Lake Winnebago, which is a popular destination for fishing, boating, and other water-based activities. The lake covers an area of approximately 137,700 acres and is the largest inland lake in Wisconsin. It is open to a variety of watercraft, including motorboats, sailboats, canoes, and kayaks.

In summary, Quinney Road Boat Launch is a concrete boat ramp located on Lake Winnebago in Wisconsin. It is 18 feet wide and provides access to the lake for a variety of watercraft, including motorboats, sailboats, canoes, and kayaks.