Anybody have any good advice on re-building a beach?

The "Hobie Beach" at my sailing club has eroded badly over the last few years, and we're bringing in a big truckload of sand to replenish it. I'm wondering if I should do anything to keep it from eroding, like terracing with railroad ties or PVC pipes, or just let nature take its course and replenish it every few years. It's on the side of a point, the rest of which is lined with limestone rip-rap, but this area is low and gently sloped.