TVA to close lane on Fort Loudoun Dam next week
From TVA:

Traffic across Fort Loudoun Dam on U.S. Highway 321 near Lenoir City, Tenn., will be reduced to one lane for bridge drain cleaning Monday, Jan. 14 through Friday, Jan 18 from 8 p.m. to 6 a.m. EST.

In the event of inclement weather, the work may be extended or rescheduled. Motorists should expect delays and may want to consider another route.