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.
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 northward through to the south end of the U.S. 19 & Georgia 400 freeway 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
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 to Interstate 75 Exit 228 one mile to the west. Photo taken by Chris Patriarca (02/23/03).
Interstate 675 south at Exit 1/Georgia 138 to Stockbridge. Drivers continuing south along the freeway will next default onto Interstate 75 southbound. Photo taken by Chris Patriarca (02/23/03).
End Interstate 675 shield, posted at the Exit 227 interchange of Interstate 75. 60 miles separate this wye interchange from Macon via Interstate 75. Photo taken by Chris Patriarca (02/23/03).
Next Three Interstate Junctions for Interstate 75 south
Two miles south of the Interstate 75/675 split is the first guide sign of Exit 227. This overhead panel indicates the main function of the 3-digit Interstate: a connection to Interstate 285 east/north. 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).
0.25 miles south of the Interstate 675 split, control cities of Augusta and Greenville for Interstate 285 north are applied. Photo taken by Chris Patriarca (02/23/03).
Motorists bound for Augusta or Greenville are advised to use Interstate 675 north. To reach I-20 (to Augusta) and I-85 (to Greenville) use the outer loop of the Perimeter Highway (I-285). Photo taken by Chris Patriarca (02/23/03).
The northbound beginning of Interstate 675 occurs at this point. Interstate 75 north continues another 20 miles into downtown Atlanta. Photo taken by Chris Patriarca (02/23/03).
Next Three Interstate Junctions for Interstate 75 north
Four miles separate the terminus interchange (Exit 11) with the last mainline interchange (Exit 7) on Interstate 675. This photograph looks at a diagrammatic overhead for Interstate 285 at the Cedar Grove Road overpass, one mile south of the conclusion of Interstate 675 north. The original button copy signage of the one-mile guide sign is also shown for comparison. Photos taken by Chris Patriarca (02/23/03) and Jim K. Georges (07/99).
One-half mile remains before the conclusion of Interstate 675 north. Local drivers bound for Atlanta are advised to use Interstate 285 west. Photos taken by Chris Patriarca (02/23/03) and Jim K. Georges (07/99).
An end shield for Interstate 675 shield follows the preceding scene. Photos taken by 05/28/05.
Motorists are again reminded of the connections Interstate 285 makes with Interstate 20 east for Augusta and Interstate 85 north for Greenville. These connections occur in six miles for Interstate 20 and 19 miles for Interstate 85. Photo taken by Chris Patriarca (02/23/03).
Approaching the gore point for the Interstate 285 east and westbound ramp split. Atlanta Airport is added to the Interstate 285 westbound control point list. Also check out the original Interstate 285 button copy panels and lighting fixtures as they appeared in 1999. Photos taken by Chris Patriarca (02/23/03) and Jim K. Georges (07/99).
The close proximity of Exit 53 of Interstate 285 westbound allows for a U.S. 23 exit ramp from the Interstate 675 northbound ramp. Photo taken by Chris Patriarca (02/23/03).
In the other direction, this view shows the transition from northbound Interstate 675 to eastbound (northbound) Interstate 285 (outer loop). Photo taken 05/28/05.
Perspective from Interstate 285 west
Interstate 285 westbound, one mile from Exit 51/Bouldercrest Road and two miles from Exit 52/Interstate 675 south. Note the truck restriction in effect for the left two lanes of Interstate 285. Photo taken by Chris Patriarca (02/23/03).
Now one mile within the northern terminus of Interstate 675 at the Exit 51 diamond interchange. The southbound control city of Macon pertains to Interstate 75 and is located 71 miles to the south. Photo taken by Chris Patriarca (02/23/03).
Interstate 285 expands to five lanes with the addition of a departure lane for Interstate 675 south/Exit 52. Photo taken by Chris Patriarca (02/23/03).
Interstate 675 southbound branches southward from Interstate 285 westbound. Montgomery emerges as a control city for Interstate 285. The Atlanta Beltway reaches Interstate 75 in six miles and Interstate 85 in nine miles. Photo taken by Chris Patriarca (02/23/03).
Perspective from Interstate 285 east
Eastbound Interstate 285, one mile west of Exit 52 for Interstate 675 southbound. Exit 51 for U.S. 23 is situated only one-quarter mile west of the northern terminus of Interstate 675. Photo taken by Chris Patriarca (02/23/03).
With U.S. 23/Moreland Avenue in the background, Interstate 285 eastbound progresses with four lanes to within one-quarter mile of Interstate 675 southbound. Photo taken by Chris Patriarca (02/23/03).
Interstate 675 southbound begins as Interstate 285 eastbound continues toward Interstate 20 in six miles. The first southbound exit of Interstate 675 (Exit 7) connects with Anvil Block Road just east of U.S. 23 and Fort Gillem. Photo taken by Chris Patriarca (02/23/03).
"I-675 open to traffic." The Atlanta Journal and The Atlanta Constitution, November 5, 1987.
Page Updated December 6, 2006.
Interstate 75, Interstate 285
Source: December 31, 2014 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 nrth and I-285 west to U.S. 23 and from U.S. 23 north to I-285 north and I-675 south.