The border community's name is locational, being a
portmanteau of the "Tenn." and "Ga."
state abbreviations. On March 28, 2000, Tennga was the site of a collision between
Murray County School District school bus number 98-08 and a 33-car southbound
CSX freight train led by GE
C40-8 7580, which resulted in the deaths of three children at a railroad crossing. The railroad roughly parallels U.S. 411, and is likewise a well-used shortcut around
Chattanooga for traffic between
Atlanta and
Knoxville. ==Geography==