Interesting. When you take a sailboat through the Okeechobee Waterway, there is a 49-foot fixed bridge at Port Mayaca, on the Eastern shore of the lake. The Indiantown Marina will provide a service (or they used to, anyway) where they bring some barrels to your boat, put them on the deck, fill them with water, and heel the boat over. Then you motor through the bridge, they empty the barrels, put them back on their little barge, and off you go. I think the service was about $75 if I remember correctly. That was several years ago (about 1996) and so it may not still be true. My mast was 51 feet.