Icy conditions challenge TVA's power restoration efforts as outages hit North Alabama, North Mississippi, and Tennessee. Crews face hazardous roads, frigid weather.

With winter weather on the way to the Tennessee Valley, a lot of people have concerns about the power grid.

The Dumpster-sized artifact likely fell into the Tennessee River during the end of construction of Wilson Dam in north Alabama and sat there the past 100 years, the Tennessee Valley Authority says.

PowerSouth, TVA, Alabama Power, cooperatives, and municipal systems — have invested in reliability, diversification, and long-term planning.