Interstate 516

Auxiliary Interstate Highway in Chatham County, Georgia, United States

Interstate 516 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 the only auxiliary route of I-16. For its entire length, I-516 is concurrent with State Route 21 (SR 21), which I-516 superseded in 1985. It was formerly also signed as State Route 26 Loop. The highway also carries unsigned State Route 421 (SR 421) to ensure that all Interstates in Georgia had 400-series reference numbers.

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