This summer the South Holston Dam powerhouse will undergo a major upgrade as part of our Hydro Major Maintenance program. The old Francis turbine and all major mechanical components will be pulled out of the Unit and replaced with new equipment including the generator and all electrical components. Here is the brand new 45,000 pound Francis turbine being fabricated. In the weeks and months ahead we''ll post updates on the project. In preparation for this major project, the public road directly in front of the powerhouse, South Holston Dam Road, will close to traffic on Monday, March 13. Access to the top of South Holston Dam and the overlook will remain open.