Based on the available information, the boat ramp named County Road 3504 in Bullard, Texas appears to be a public boat ramp. It is not clear how wide the ramp is, as this information was not available in the sources consulted.

The boat ramp services Lake Palestine, a large reservoir in northeastern Texas. This body of water is known for its recreational opportunities, including boating, fishing, and swimming.

According to the Texas Parks and Wildlife Department, Lake Palestine allows a wide variety of watercraft, including powerboats, sailboats, canoes, kayaks, and jet skis. However, there may be restrictions or regulations in place depending on the specific area of the lake and the type of watercraft being used.

It is important to note that information about boat ramps and their specific characteristics can change over time, so it is recommended to consult current sources or official websites for the most up-to-date information.