Boat launching ramps the town of brookhaven has seven boat launching ramps for its residents and non-residents use. ramp fees are required and permits may be obtained directly at the ramp.. Building boat ramps, whether you are building a ramp for your private use, or in the case of the department of game and inland fisheries (dgif), public use, many of the things to be considered are the same.. I've seen people launch 45-foot speedboats on ramps like this, without any problems. that said, if the ramp's likely to see any boats over about 25 to 30 feet and you have the space, it certainly won't hurt to include a 10-foot segment at 6% grade between the ramp and the parking area..
