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
Okeechobee Battlefield the "general area" of the battlefield was landmarked. In the 1980s, the National Park Service commissioned more detailed studies, and performed some archaeological work in the area, to more precisely identify the battlefield area. As a result, the landmarked area was decreased to above , most of which overlapped parts of the original designation. A marker was placed near the site in 1939, and a portion of the battlefield was purchased by the state of Florida in 2006. A volunteer group sponsors annual reenactments of the Battle of Lake Okeechobee as a fundraising activity for the park. Okeechobee Battlefield The