Interstate 516 (I-516, also known as the W.F. Lynes Parkway) is a 6.49-mile-long (10.44 km) auxiliary Interstate Highway mostly in the coastal city of Savannah, located in the east-central portion of the U.S. state of Georgia. It is a spur route of I-16. For its entire length, I-516 is concurrent with State Route 21 (SR 21), upon which I-516 was designated over in 1985. It was formerly also signed as SR 26 Loop.