Hundreds of workers and thousands of volunteers working to search, rescue and clean up. But who is giving orders?

Unicoi County authorities say that water levels at the Nolichuky River have returned to close to their normal level before the flooding began.

The literal floodgates are open all along the Tennessee River as it moves Helene's floodwater from the Smokies to the Ohio River.

TVA's system of dams along the Tennessee River and its tributaries has been tested by record flooding from Hurricane Helene, which drenched Western North Carolina and East Tennessee as a tropical storm , washing out interstate lanes and trapping residents as small streams in the Great Smoky Mountains suddenly became raging rivers.

A critical flood emergency was narrowly averted along the Nolichucky River in East Tennessee as the remnants of Hurricane Helene unleashed torrential rainfall.

The Greene County mayor called the flooding in the area "an extremely dangerous situation of Biblical proportion."

Watch a Tennessee bridge collapse into the Nolichucky River on Saturday, when the river surged with floodwater caused by remnants of Hurricane Helene. After Helene made landfall in the Big Bend of Florida Thursday night,