Interstate 575 (I-575) is an auxiliary Interstate Highway in the United States, which branches off I-75 in Kennesaw and connects the Atlanta metropolitan area with the North Georgia mountains, extending 30.97 miles (49.84 km). I-575 is also the unsigned State Route 417 (SR 417) and is cosigned as SR 5. I-575 begins in northern Cobb County near Kennesaw and goes mostly through Cherokee County, ending at its northern border with Pickens County, where it continues as SR 515. It is also the Phillip M. Landrum Memorial Highway in honor of Phillip M. Landrum (1907–1990), who was a Representative from Georgia. It is entirely concurrent with Georgia State Route 5.
Full content and reference may be found here: https://en.wikipedia.org/wiki/Interstate_575