Okeechobee Waterway of Orlando and extending southward through the Kissimmee River Basin to the Everglades National Park to Florida Bay. The U.S. Army Corps of Engineers manages five locks and dams along the Okeechobee Waterway. The St. Lucie lock was built in 1941 for navigation and flood-control purposes. In 1944, the connecting spillway structure was built for flood and regulatory flow control through the St. Lucie Canal to manage the water level in Lake Okeechobee. The Port Mayaca Lock and Dam was built in 1977 for navigation purposes, to permit the raising of water levels in Lake Okeechobee, and to moderate the
Charlotte River (Florida) Charlotte River (Florida) The Charlotte River (also Macaco River) is a former name for what was thought to be a continuous river draining Lake Okeechobee (formerly Lake Macaco) into Charlotte Harbor. Although an 1842 map indicates that the Charlotte was the same as the Caloosahatchee River, other sources distinguish the two from each other. Most maps that include the river show it following what is now known as Shell Creek east from the Peace River and splitting into multiple branches, with the south branch receiving water from Lake Macaco, a north or northeast branch, and a central branch labeled as