HENDERSONVILLE, Tenn. (Aug. 4, 2015) – The U.S. Army Corps of Engineers Nashville District at Old Hickory Lake is holding two Master Plan Update public workshops in August. The first is Tuesday, Aug. 18, 2015 from 6 to 8 p.m. at Old Hickory Lake Resource Manager's Office in Hendersonville, Tenn. The second is Thursday, Aug. 20, 2015 from 6 to 8 p.m. at Mt. Juliet High School in Mt. Juliet, Tenn.