State Route 13 (SR 13) is a 49.5-mile-long (79.7 km) state highway in the north-central part of the U.S. state of Georgia, that travels through portions of Fulton, DeKalb, Gwinnett, and Hall counties. It begins at West Peachtree Street and Spring Street (US 19/SR 9) just to the north of 17th Street in the northern part of Midtown Atlanta. The section south of Buckhead is a full freeway, from its southern terminus to Sidney Marcus Boulevard, built in 1953 as an extension of the Downtown Connector (built in 1952). This was later the original alignment of Interstate 85 (I-85; Northeast Expressway) through northeast Atlanta until 1985, when it was replaced by several lanes in each direction on a new roadway and viaduct immediately adjacent to it during the Freeing the Freeways construction boo