What does the map suggest about how the TVA helped American workers during the Great Depression?

?

MO. ILLINOIS Paducah Mississippi Ohio R. 11 MISSISSIPPI 11, Muscle Shoals 0 OT Map 24-3 The American Promise, Fourth Edition 2009 Bedfied/St Martins Fumberland R Nashville Tennessee R. TENNESSEE ALABAMA 50 KENTUCKY 100 miles Chattanooga 11 50 100 kilometers AL 11 AL Knoxville TH AK Hul GEORGIA AL W.V. VIRGINIA Bristol It NORTH CAROLINA Asheville SOUTH CAROLINA Tennessee Valley Region Dams AA Power plants The Tennessee Valley Authority