Jim Woodruff Dam is a hydroelectric dam on the Apalachicola River, about 1,000 feet (300 m) south of that river's origin at the confluence of the Flint and Chattahoochee Rivers.The dam impounds Lake Seminole on the common border of Florida and Georgia. The dam is named in honor of James W. Woodruff, Sr., a Georgia businessman who spearheaded the development of the Apalachicola-Chattahoochee-Flint Project.