Interstate 575 (unsigned Georgia 417) is the 31-mile Phillip M. Landrum Memorial Highway, which serves the far northern suburbs of the Atlanta metropolitan area. It is cosigned with Georgia 5 throughout while the old alignment of Georgia 5 parallels as a local road, maintained by either the county or city through which it passes.
The freeway connects Interstate 75 at Marietta with Nelson via Woodstock, Canton and Holly Springs along the Georgia 5 corridor. West of Nelson, when Interstate 575 crosses the Cherokee/Pickens County line, the route transitions directly onto Georgia 515 (ARC Corridor A), an at-grade expressway. Georgia 5 extends north along side Georgia 515 as the Appalachian Developmental (APD) Highway / Zell Miller Mountain Parkway to Ellijay.
Northwest Corridor Express Lanes
The Northwest Corridor project underway between November 2013 and September 8, 2018 constructed 29.7 miles of two reversible toll lanes along both Interstates 75 and 575 north of the Perimeter Highway (I-285). The express lanes extend north along I-575 to the Sixes Road interchange (Exit 11). Costs were estimated at $834 million for the entire project.
AASHTO approved the establishment of Interstate 575 on October 28, 1977. The freeway was constructed in phases between 1979 and 1987.1,2:
- Interstate 75 north to Georgia 92 (Exit 7) – construction began in April 1978, opened on October 16, 1980.
- Georgia 92 (Exit 7) north to Georgia 5 Business / Riverstone Parkway (Exit 20) – construction began in 1981, opened on March 29, 1985; this incorporated the two-lane Georgia 20 bypass of Canton between Exits 16A and 19 that was built in 1978.
- Georgia 5 Business / Riverstone Parkway (Exit 20) north to Georgia 372 / Howell Bridge Road, opened in 1987.
A new diamond interchange constructed at Ridgewalk Parkway opened to traffic on November 29, 2012. The $17.1 million project was first conceptualized in 1976. Opening of the new exit coincided with development of the adjacent Outlet Shoppes at Atlanta on the east side of the freeway.3
North End – Nelson, Georgia
South End – Marietta, Georgia
- Research by Trent Legg of Georgia official maps and date stamps on bridges on Interstate 575, plus old newspaper articles.
- “Happy Birthday to the open road.” Gwinnett Daily Post (Lawrenceville, GA), June 25, 2006.
- “Interchange, outlet shops excite Woodstock leaders.” Cherokee Tribune (Canton, GA), February 24, 2013.
Page updated January 18, 2019.