Interstate 285 (Georgia)

Interstate 285
Interstate 285
The Perimeter
	I-285 highlighted in red
Route information
	Auxiliary route of I-85
	Maintained by GDOT
Length	63.98 mi (102.97 km)
Existed	1963–present
NHS	Entire route
Major junctions
	Beltway around Atlanta
	SR 154 / SR 166 near East Point; I-20 in Atlanta; I-75 near Smyrna; US 19 / SR 400 in Sandy Springs; SR 141 in Doraville; I-85 near Norcross; US 78 / SR 410 near Clarkston; I-20 near Panthersville; I-675 near Conley; I-75 / SR 85 near Forest Park; I-85 / SR 14 Conn. / SR 279 near College Park;
Location
Country	United States
State	Georgia
Counties	Fulton, Cobb, DeKalb, Clayton
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Georgia State Highway System; Interstate; US; State; ; Special;

Interstate 285 (I-285) is an auxiliary Interstate Highway encircling Atlanta, Georgia, for 63.98 miles (102.97 km).^[1] It connects the three major Interstate Highways to Atlanta: I-20, I-75, and I-85. Colloquially referred to as the Perimeter, it also carries unsigned State Route 407 (SR 407) and is signed as Atlanta Bypass on I-20, I-75, and I-85.

Because of suburban sprawl, it is estimated that more than two million people use the highway each day, making it one of the busiest Interstates in the Atlanta metropolitan area, and one of the most heavily traveled roadways in the US. During rush hour, portions of the highway slow, sometimes to a crawl.

^ ^a ^b Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved August 28, 2022.
^ State Highway Department of Georgia (1963). State Highway System and Other Principal Connecting Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. OCLC 5673161. Retrieved February 11, 2017. (Corrected to June 1, 1963.)

[routelog-1] Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved August 28, 2022.

[GDOT_1963-2] State Highway Department of Georgia (1963). State Highway System and Other Principal Connecting Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. OCLC 5673161. Retrieved February 11, 2017. (Corrected to June 1, 1963.)

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