Interstate 675 Georgia


Interstate 675 (Georgia 413) provides an alternate route to Interstate 75 northward from Stockbridge in Henry County to the Perimeter Highway (Interstate 285) in southwest DeKalb County. The freeway doubles as a commuter route for unincorporated suburbs in Clayton County while serving Fort Gillem to the west. The freeway appears rural with a wide median and only four lanes north from I-75 to the Double Bridge Road overpass and six lanes from Forest Parkway north to I-285.

Planned Improvements

Construction of the I-75 South Metro Express Lanes includes two new ramps at the south end of Interstate 675 with the future HOT lanes. Construction on the overall $176-million project takes place between October 2014 and early 2017. The HOT Lanes will run south from Stockbridge to McDonough.

Road work scheduled for 2019 will modify the Interstate 285 interchange at Bouldercrest Road into a parclo. Associated work adds a new distributor roadway from Bouldercrest Road to Interstate 675 south, separating weaving traffic movements from the Perimeter Highway westbound mainline.


Interstate 675 was originally planned to be part of a longer route, as part of a proposed Interstate 475 / Georgia 400 freeway that would have extended north of Interstate 285 through the east side of Atlanta. The route was envisioned to run through to the south end of U.S. 19 & Georgia 400 (North Fulton Expressway) at I-285 in Sandy Springs. The northern third of this highway was constructed as the tolled extension of Georgia 400. The remainder between I-285 in DeKalb County and I-85 at Lindbergh in Atlanta was unbuilt.

Interstate 675 was applied to the route between I-75 at Stockbridge and I-285 in DeKalb County as approved by AASHTO on June 17, 1975. Construction of I-675 commenced in December 1982. Work was halted when a subcontractor defaulted on work in 1985, resulting in a new bidding process and other complications. These events delayed completion until October 30, 1987. The freeway cost $61.6-million to complete.1

Highway Guides

Southern Terminus - Interstate 75 - Stockbridge, Georgia
Perspective from Interstate 675 south
Like the southern terminus of Interstate 985, Interstate 675 concludes in a wye interchange with Interstate 75. Motorists wanting to access I-75 northbound must utilize Georgia 138 west 0.6 for the freeway leading northwest to Morrow and Riverdale. Photo taken 07/05/14.
Interstate 675 south at the diamond interchange (Exit 1) with Georgia 138 in Stockbridge. Drivers continuing south along the freeway default onto I-75 southbound through south Stockbridge. Photo taken 07/05/14.
End shields were posted on the transition ramp from I-675 south to I-75 south until 2007. Construction is underway here now to add a new flyover to the I-75 Express Lanes. Photo taken 01/17/04.
Perspective from Interstate 75 north
Four lanes of Interstate 75 push northward toward the wye interchange (Exit 227) split with Interstate 675 north. A HOT lane will add a fifth northbound lane, and it will provide access to the suburban route of I-675 as well by 2017. Photo taken 10/22/15.
Traffic bound for the Perimeter Highway west is advised to take I-75 north for College Park and East Point. I-675 provides a direct route to I-285 east for the DeKalb County suburbs and Clarkston. Photo taken 10/22/15.
The carriageways of Interstate 75 separated ahead of Exit 227. Travelers bound for Birmingham via I-20 west are advised to remain on I-75 north to I-285 west.
The wide median accommodates I-75 Express Lane construction and the new HOT ramps with I-675. Photo taken 10/22/15.
Exit 227 separates from Interstate 75 north with two lanes for Stockbridge, Ellenwood and Fort Gillem. The north end of I-675 ties into I-285, six miles west of Interstate 20 near Panthersville. Photo taken 10/22/15.
Historical Perspective from Interstate 75 south
Two miles south of the Interstate 75/675 split at the Flippen Road underpass was the first guide sign of Exit 227. This guide sign indicated the main function of the 3-digit Interstate: a connection to Interstate 285 east. Photo taken by Chris Patriarca (02/23/03).
This diagrammatic overhead was removed when the Walt Stephens Road overpass was replaced to accommodate widening of Interstate 75. An arrow per lane sign took it places just to the south. Photo taken by Chris Patriarca (02/23/03).
Two lanes are available for Interstate 675 northbound motorists. Interstate 75 meanwhile retains six lanes through the Exit 227 interchange. Interstate 75 overall is six lanes or more throughout the Peach State. Photo taken by Chris Patriarca (02/23/03).
This supplemental sign was removed by 2008. It encouraged motorists bound for Augusta or Greenville to use Interstate 675 north for I-20 east or I-85 north. Photo taken by Chris Patriarca (02/23/03).
Interstate 675 north began as Interstate 75 turned northwest for the 20 mile drive to Downtown Atlanta. Photo taken by Chris Patriarca (02/23/03).
Perspective from Interstate 675 north
Reassurance markers stand along both sides of Interstate 675 immediately after the gore point with I-75. A diamond interchange (Exit 1) lies just ahead with Georgia 138.
The button copy I-675 shields here were replaced by 2012. Photo taken 05/28/05.
Northern Terminus - Interstate 285 - near Conley, Georgia
Perspective from Interstate 675 north
Interstate 675 leads four miles north from the final mainline interchange at Anvil Block Road to the terminus at Interstate 285. A series of diagrammatic signs outline the movements to the Perimeter Highway starting with this sign at the Cedar Grove Road overpass. Photo taken 10/22/15.
One-half mile remains before the conclusion of Interstate 675 north. Local drivers bound for Atlanta are advised to use Interstate 285 west. Photo taken 10/22/15.
A pair of end shields are posted as the carriageways of Interstate 675 separate toward I-285 at the Henrico Road underpass. Photo taken 05/28/05.
Motorists are reminded of the connections Interstate 285 makes with I-20 east for Augusta and I-85 north for Greenville. The outer loop of I-285 reaches the Tom Moreland Interchange with Interstate 85 in 19 miles. Photo taken 10/22/15.
Two lanes part ways for Interstate 285 west toward Hartsfield-Jackson Atlanta International Airport (ATL) and Interstate 285 east and north toward Decatur and Stone Mountain. Photo taken 10/22/15.
The close proximity of the I-285 interchange with U.S. 23 & Georgia 42 allows for a connection from the westbound ramp from I-675 north. Photo taken 10/22/15.
Historical Perspective from Interstate 675 north
Original button copy diagrammatic signs for Interstate 285 on I-675 north were carbon copied by 2003. Photo taken by Jim K. Georges (07/99).
A second button copy diagrammatic sign preceded the directional T interchange with Interstate 285. Photos taken by Chris Patriarca (02/23/03) and Jim K. Georges (07/99).
More original button copy signs for Interstate 285 and since removed lighting fixtures. Photo taken by Jim K. Georges (07/99).
Perspective from Interstate 285 west
Two miles ahead of Exit 52 with Interstate 675 south on I-285 west (inner loop) at the Clifton Springs Road overpass. Photo taken 07/31/11.
I-285 advances one mile west from the diamond interchange (Exit 51) with Bouldercrest Road to meet I-675 south. The southbound control city of Macon is located 71 miles away via I-75. Photo taken 07/05/14.
An auxiliary lane from Bouldercrest Road defaults onto Interstate 675 south beyond the South River and this sign bridge. Photo taken 07/05/14.
Interstate 675 branches southward from Interstate 285 westbound at a directional T interchange. Montgomery emerges as a control city for Interstate 285. The Atlanta Beltway reaches I-75 in six miles and I-85 in nine miles. Photo taken 07/05/14.
Perspective from Interstate 285 east
Back to back ramps depart from Interstate 285 east, 0.75 miles beyond the Forest Park Road SE overpass for U.S. 23 & GA 42 (Moreland Avenue) and Interstate 675 south. Photo taken by Chris Patriarca (02/23/03).
The diamond interchange with U.S. 23 & GA 42 (Moreland Avenue) includes ramp connections with the adjacent interchange at Interstate 675. Motorists on the I-285 mainline join I-675 south ahead of the Moreland Avenue on-ramp. Photo taken by Chris Patriarca (02/23/03).
A long sweeping ramp (Exit 52) departs Interstate 285 east for I-675 south to the Clayton County suburbs. Interstate 285 progresses eastward with four lanes toward the communities of Gresham Park and Panthersville otherwise. Photo taken by Chris Patriarca (02/23/03).


  1. "I-675 open to traffic." The Atlanta Journal and The Atlanta Constitution, November 5, 1987.

Page Updated November 13, 2015.

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State Georgia
Mileage 11.04
Cities Atlanta
Junctions Interstate 75, Interstate 285
Source: December 31, 2015 Interstate Route Log and Finders List
Atlanta street atlas page showing Interstate 675 under construction leading north to Interstate 285 in 1984. Note the ramp error from I-675 north to I-285 south.
The adjacent diamond interchange between Interstate 285 (Perimeter Highway) and U.S. 23 & Georgia 42 (Moreland Avenue) was modified with construction of the directional T interchange with Interstate 675. Ramps were added to consolidate movements from I-675 north and I-285 west to U.S. 23 and from U.S. 23 north to I-285 north and I-675 south.