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 redevelopment of 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.
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 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
North End – Conley, GA
South End – Stockbridge, GA
Mileage – 11.04
Cities – Atlanta
- Junctions –
Source: December 31, 2018 Interstate Route Log and Finders List
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.
Construction of the I-75 South Metro Express Lanes included new ramps joining the managed lanes along Interstate 75 with the south end of Interstate 675 at Stockbridge. Construction on the overall $176-million project kicked off in October 2014. A ribbon cutting ceremony preceded the January 28, 2017 opening of the toll lanes. They run 12 miles along I-75 southeast from SR 138 (Stockbridge Highway) to SR 155 (McDonough Road).2
North End – near Conley, Georgia
South End – Stockbridge, Georgia
- “I-675 open to traffic.” The Atlanta Journal and The Atlanta Constitution, November 5, 1987.
- “GDOT Celebrates the Completion of the I-75 Express Lanes at Ribbon Cutting.” Georgia Department of Transportation, announcement. January 26, 2017.
Page updated July 3, 2017.