
This aerial view shows the Tennessee Valley Authority's Norris Dam in Norris, Tenn., as construction progresses in Nov. 1934. (AP Photo)

Water spills over the Tennessee Valley Authority's Norris Dam into the Clinch River Tuesday, April 22, 2003, in Norris, Tenn. With one of two generating units down for service, the water stage in Norris Lake is approximately two feet higher than...

This night view shows the Norris Dam rising from the Clinch River in Norris, northeast Tenn., July 22, 1935. Powerful spotlights placed on and above the dam enable construction work to continue night and day of the Tennessee Valley Authority's...

The Tennessee Valley Authority's Norris Dam nears completion as shown in this aerial view on July 22, 1935. The dam will be 265 feet high, 1,860 feet long and will create one of the world's largest reservoirs, inundating five counties and...

Chris and Fay Christie watch as water spills over the Tennessee Valley Authority's Norris Dam into the Clinch River Tuesday, April 22, 2003 in Norris, Tenn. With one of two generating units down for service, the water stage in Norris Lake is...

Norris Dam (TVA)

Norris Dam (TVA)

Norris Dam (TVA)

Norris Dam (TVA)

Norris Dam (TVA)