the nearby state line in Georgia and moving southeastward. After the war ended, the city became a major railroad hub and industrial and manufacturing center.
The largest flood in Chattanooga’s history occurred in 1867, before the Tennessee Valley Authority (TVA) system was created in 1933 by Congress. The flood crested at 58 feet and completely inundated the city. Since the completion of the reservoir system, the highest Chattanooga flood stage has been nearly 37 feet, which occurred in 1973. Without regulation, the flood would have crested at 52.4 feet. Chattanooga was a major priority in the design of the TVA reservoir system and remains a major operating priority in the 21st century.
In December 1906, Chattanooga was in the national headlines as the United States Supreme Court, in its only criminal case in its history, ruled that Hamilton County Sheriff Joseph H. Shipp had violated Ed Johnson's civil rights when Shipp allowed a mob to enter the Hamilton County Jail and lynch Johnson on the Walnut Street Bridge in United States v. Shipp. Chattanooga grew with the entry of the United States in the First World War in 1917, as the nearest training camp was in Fort Oglethorpe, Georgia. Chattanooga suffered the effects of the Influenza of 1918 from before the end of the First World War in November 1918 to February 1919 by having movie theaters and pool halls closed, among other effects. By the 1930s Chattanooga was known as the "Dynamo of Dixie", inspiring the 1941 Glenn Miller big-band swing song "Chattanooga Choo Choo".
The same mountains that provided Chattanooga's scenic backdrop also served to trap industrial pollutants which caused them to settle over the community, so much that in 1969, the federal government declared that Chattanooga had the dirtiest air in the nation. But environmental crises were not the only problems plaguing the city. Like other early industrial cities, Chattanooga entered the 1980s with serious socioeconomic
