The TVA: How a New Deal Agency Electrified the Tennessee Valley

The dams that brought electricity to urban and rural communities across the Tennessee Valley were built by the Tennessee Valley Authority (TVA)—a federally owned corporation created by Congress in 1933 as a centerpiece of the New Deal.

The Mandate

The TVA Act charged the agency with a sweeping mission:

• Navigation: Tame the Tennessee River for commercial traffic (9-foot channel, locks).
• Flood Control: Regulate flow with a system of dams/reservoirs.
• Power Generation: Build hydroelectric dams to provide affordable electricity.
• Economic Development: Attract industry, improve agriculture, reforest eroded lands.

The Dam Building Era

Between 1933 and 1944, TVA constructed 16 major dams (including Norris, Wheeler, Guntersville, Kentucky, Fontana). By WWII, TVA power fueled aluminum plants for aircraft, the secret Manhattan Project facilities at Oak Ridge, and rural cooperatives that lit up farmsteads for the first time.

Legacy

Today TVA operates 29 hydro dams, plus nuclear, coal, gas, and solar—serving 10 million people across 7 states. It remains the largest public power provider in the U.S., a model of regional resource management born from the conviction that electricity is a public good, not just a commodity.