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Transform 285/400: Traffic Impact Report

WHAT: Weather permitting, Georgia Department of Transportation construction partners will close lanes on I-285 eastbound and westbound and SR 400 northbound and southbound for activities to include roadway, noise barrier, and bridge construction. Travel restrictions include possible delays, reduced speeds, and detours in some areas. *NOTES: Work schedule updates can be made daily. Check project web page often for the latest updates. Detour information is shown using red text. Closures marked with **/++ – only one of these closures will be implemented WHEN/WHERE: Traffic Impacts on I-285 and SR 400 from July 17, through July 24, 2023 Continuous Weekend Closures: (Friday, July 21, 9 p.m. to Monday, July 24, 5 a.m.) General Lane Closures & Traffic Pacings:
  • Two left lanes on I-285 eastbound from Roswell Road to Perimeter Center Parkway (Saturday 5 a.m. to Sunday 5 a.m.)
Daytime Closures: Monday, July 17, through Friday, July 21, 7 a.m. to 5 p.m. General Lane Closures & Traffic Pacings:
  • Flagging on Lake Forrest Drive at I-285
  • Shoulder closure on SR 400 northbound CD lanes from North Springs MARTA Station to Spalding Drive
  • One right lane on Glenlake Parkway at Abernathy Road
  • Shoulder closure on I-285 westbound from Glenridge Drive to Roswell Road
Overnight Closures:  Monday, July 17, 9 p.m. to 5 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • One right lane on I-285 eastbound from SR 400 to Peachtree Dunwoody
  • **One right lane on I-285 westbound from Glenridge Drive to Lake Forrest Drive
  • **One left lane on I-285 westbound from Roswell Road to Lake Forrest Drive
  • Two left lanes on SR 400 northbound CD lanes from Mount Vernon Highway to Abernathy Road
  • One right lane on SR 400 southbound from Spalding Drive to North Springs MARTA Station
  • One right lane on Abernathy Road eastbound from Aria Boulevard to Mercedes-Benz Drive
  • One right lane on Barfield Road southbound from Abernathy Road to Mercedes-Benz Way
  • One right lane on Peachtree Dunwoody Road southbound from I-285 to Lake Hearn Drive
Closures and Detours: SR 400 northbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 northbound to I-285 westbound should use Exit 4A I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access Glenridge Drive.
Lake Forrest Drive at I-285 Full Closure (Detour Map)
  • Motorists traveling on Lake Forrest Drive northbound should use Northwood Drive, Kingsport Drive (road changes to Lake Placid Drive), Roswell Road, Cliftwood Drive, Sandy Springs Circle, and Allen Road to access Lake Forrest Drive northbound.
  • Motorists traveling on Lake Forrest Drive southbound should use Allen Road, Roswell Road and Northwood Drive to access Lake Forrest Drive southbound.
Tuesday, July 18, 9 p.m. to 5 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • One right lane on I-285 eastbound from Roswell Road to Peachtree Dunwoody Road
  • **One right lane on I-285 westbound from Glenridge Drive to Lake Forrest Drive
  • **One left lane on I-285 westbound from Roswell Road to Lake Forrest Drive
  • One left lane on I-285 westbound CD lanes from Glenridge Drive to Roswell Road
  • Two left lanes on SR 400 northbound CD lanes from Mount Vernon Highway to Abernathy Road
  • One right lane on SR 400 southbound from Spalding Drive to North Springs MARTA Station
  • One right lane on Abernathy Road eastbound from Aria Boulevard to Mercedes-Benz Drive
  • One right lane on Barfield Road southbound from Abernathy Road to Mercedes-Benz Way
Closures and Detours: ++ I-285 eastbound to SR 400 southbound (Detour Map)
  • Motorists traveling on I-285 eastbound to SR 400 southbound should use Exit 27 SR 400 northbound and Exit 5 Abernathy Road to access SR 400 southbound.
SR 400 northbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 northbound to I-285 westbound should use Exit 4A I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
SR 400 southbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 southbound to I-285 westbound should use Exit 4B I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
Roswell Road to I-285 eastbound (Detour Map)
  • Motorists traveling on Roswell Road to I-285 eastbound should use I-285 westbound and Exit 24 Riverside Drive to access I-285 eastbound.
SR 400 southbound to Glenridge Connector (Detour Map)
  • Motorists traveling on SR 400 southbound to Glenridge Connector should use Exit 2 Lenox Road and SR 400 northbound to access Exit 3 Glenridge Connector.
++ I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access Glenridge Drive.
Abernathy Road to SR 400 northbound (Detour Map)
  • Motorists traveling on Abernathy Road to SR 400 northbound should use Peachtree Dunwoody Road and Hammond Drive to access SR 400 northbound.
  • Motorists traveling west on Abernathy Road to SR 400 northbound should use Mercedes-Benz Drive (road changes to Barfield Drive) and Hammond Drive to access SR 400 northbound.
I-285 westbound to Peachtree Dunwoody Road (Detour Map)
  • Motorists traveling on I-285 westbound to Peachtree Dunwoody Road should use Exit 27A SR 400 northbound and Exit 5 Abernathy Road to access Peachtree Dunwoody Road.
Lake Forrest Drive at I-285 Full Closure (Detour Map)
  • Motorists traveling on Lake Forrest Drive northbound should use Northwood Drive, Kingsport Drive (road changes to Lake Placid Drive), Roswell Road, Cliftwood Drive, Sandy Springs Circle, and Allen Road to access Lake Forrest Drive northbound.
  • Motorists traveling on Lake Forrest Drive southbound should use Allen Road, Roswell Road and Northwood Drive to access Lake Forrest Drive southbound.
Peachtree Dunwoody Road Full Closure (Detour Map)
  • Motorists traveling north on Peachtree Dunwoody Road to I-285 should use Lake Hearn Drive (road changes to Perimeter Summit Parkway) and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling south on Peachtree Dunwoody Road to I-285 should use Hammond Drive and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling north on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Lake Hearn Drive (road changes to Perimeter Summit Parkway), Perimeter Center Parkway and Hammond Drive to access Peachtree Dunwoody Road.
  • Motorists traveling south on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
  • Motorists traveling from I-285 westbound to Peachtree Dunwoody Road south should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
Wednesday, July 19, 9 p.m. to 5 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • **Two right lanes on I-285 eastbound at Roswell Road
  • **Two left lanes on I-285 eastbound at Roswell Road
  • **One right lane on I-285 eastbound from Roswell Road to Peachtree Dunwoody Road
  • One right lane on I-285 westbound from Glenridge Drive to Lake Forrest Drive
  • Two left lanes on I-285 westbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One left lane on I-285 westbound CD lanes from Glenridge Drive to Roswell Road
  • Two left lanes on SR 400 northbound CD lanes from Mount Vernon Highway to Abernathy Road
  • One right lane on SR 400 southbound from Spalding Drive to North Springs MARTA Station
  • Two right lanes on SR 400 southbound at Pitts Road
  • Pacing two left lanes on SR 400 southbound at Pitts Road
  • One right lane on Abernathy Road eastbound from Aria Boulevard to Mercedes-Benz Drive
  • One right lane on Barfield Road southbound from Abernathy Road to Mercedes-Benz Way
Closures and Detours: ++ I-285 eastbound to SR 400 southbound (Detour Map)
  • Motorists traveling on I-285 eastbound to SR 400 southbound should use Exit 27 SR 400 northbound and Exit 5 Abernathy Road to access SR 400 southbound.
SR 400 southbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 southbound to I-285 westbound should use Exit 4B I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
Roswell Road to I-285 eastbound (Detour Map)
  • Motorists traveling on Roswell Road to I-285 eastbound should use I-285 westbound and Exit 24 Riverside Drive to access I-285 eastbound.
SR 400 southbound to Glenridge Connector (Detour Map)
  • Motorists traveling on SR 400 southbound to Glenridge Connector should use Exit 2 Lenox Road and SR 400 northbound to access Exit 3 Glenridge Connector.
++ I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access Glenridge Drive.
Abernathy Road to SR 400 northbound (Detour Map)
  • Motorists traveling on Abernathy Road to SR 400 northbound should use Peachtree Dunwoody Road and Hammond Drive to access SR 400 northbound.
  • Motorists traveling west on Abernathy Road to SR 400 northbound should use Mercedes-Benz Drive (road changes to Barfield Drive) and Hammond Drive to access SR 400 northbound.
I-285 westbound to Peachtree Dunwoody Road (Detour Map)
  • Motorists traveling on I-285 westbound to Peachtree Dunwoody Road should use Exit 27A SR 400 northbound and Exit 5 Abernathy Road to access Peachtree Dunwoody Road.
Lake Forrest Drive at I-285 Full Closure (Detour Map)
  • Motorists traveling on Lake Forrest Drive northbound should use Northwood Drive, Kingsport Drive (road changes to Lake Placid Drive), Roswell Road, Cliftwood Drive, Sandy Springs Circle, and Allen Road to access Lake Forrest Drive northbound.
  • Motorists traveling on Lake Forrest Drive southbound should use Allen Road, Roswell Road and Northwood Drive to access Lake Forrest Drive southbound.
Peachtree Dunwoody Road Full Closure (Detour Map)
  • Motorists traveling north on Peachtree Dunwoody Road to I-285 should use Lake Hearn Drive (road changes to Perimeter Summit Parkway) and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling south on Peachtree Dunwoody Road to I-285 should use Hammond Drive and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling north on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Lake Hearn Drive (road changes to Perimeter Summit Parkway), Perimeter Center Parkway and Hammond Drive to access Peachtree Dunwoody Road.
  • Motorists traveling south on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
  • Motorists traveling from I-285 westbound to Peachtree Dunwoody Road south should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
Thursday, July 20, 9 p.m. to 5 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • One right lane on I-285 eastbound from Roswell Road to Peachtree Dunwoody Road
  • One right lane on I-285 westbound from Glenridge Drive to Lake Forrest Drive
  • Two left lanes on I-285 westbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One left lane on I-285 westbound CD lanes from Glenridge Drive to Roswell Road
  • One right lane on SR 400 southbound from Spalding Drive to North Springs MARTA Station
  • Two right lanes on SR 400 southbound at Pitts Road
  • Pacing two left lanes on SR 400 southbound at Pitts Road
  • One right lane on Abernathy Road eastbound from Aria Boulevard to Mercedes-Benz Drive
  • One right lane on Barfield Road southbound from Abernathy Road to Mercedes-Benz Way
Closures and Detours: ++ I-285 eastbound to SR 400 southbound (Detour Map)
  • Motorists traveling on I-285 eastbound to SR 400 southbound should use Exit 27 SR 400 northbound and Exit 5 Abernathy Road to access SR 400 southbound.
SR 400 northbound to I-285 eastbound (Detour Map)
  • Motorists traveling on SR 400 northbound to I-285 eastbound should use Exit 4B I-285 westbound and Exit 25 Roswell Road to access I-285 eastbound.
SR 400 northbound to Glenridge Connector (Detour Map)
  • Motorists traveling on SR 400 northbound to Glenridge Connector …
SR 400 southbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 southbound to I-285 westbound should use Exit 4B I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
Roswell Road to I-285 eastbound (Detour Map)
  • Motorists traveling on Roswell Road to I-285 eastbound should use I-285 westbound and Exit 24 Riverside Drive to access I-285 eastbound.
SR 400 southbound to Glenridge Connector (Detour Map)
  • Motorists traveling on SR 400 southbound to Glenridge Connector should use Exit 2 Lenox Road and SR 400 northbound to access Exit 3 Glenridge Connector.
++ I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access Glenridge Drive.
Abernathy Road to SR 400 northbound (Detour Map)
  • Motorists traveling on Abernathy Road to SR 400 northbound should use Peachtree Dunwoody Road and Hammond Drive to access SR 400 northbound.
  • Motorists traveling west on Abernathy Road to SR 400 northbound should use Mercedes-Benz Drive (road changes to Barfield Drive) and Hammond Drive to access SR 400 northbound.
I-285 westbound to Peachtree Dunwoody Road (Detour Map)
  • Motorists traveling on I-285 westbound to Peachtree Dunwoody Road should use Exit 27A SR 400 northbound and Exit 5 Abernathy Road to access Peachtree Dunwoody Road.
Lake Forrest Drive at I-285 Full Closure (Detour Map)
  • Motorists traveling on Lake Forrest Drive northbound should use Northwood Drive, Kingsport Drive (road changes to Lake Placid Drive), Roswell Road, Cliftwood Drive, Sandy Springs Circle, and Allen Road to access Lake Forrest Drive northbound.
  • Motorists traveling on Lake Forrest Drive southbound should use Allen Road, Roswell Road and Northwood Drive to access Lake Forrest Drive southbound.
Peachtree Dunwoody Road Full Closure (Detour Map)
  • Motorists traveling north on Peachtree Dunwoody Road to I-285 should use Lake Hearn Drive (road changes to Perimeter Summit Parkway) and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling south on Peachtree Dunwoody Road to I-285 should use Hammond Drive and Ashford Dunwoody Road to access I-285 eastbound and westbound.
  • Motorists traveling north on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Lake Hearn Drive (road changes to Perimeter Summit Parkway), Perimeter Center Parkway and Hammond Drive to access Peachtree Dunwoody Road.
  • Motorists traveling south on Peachtree Dunwoody Road to Peachtree Dunwoody Road should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
  • Motorists traveling from I-285 westbound to Peachtree Dunwoody Road south should use Hammond Drive, Perimeter Center Parkway, and Lake Hearn Drive to access Peachtree Dunwoody Road.
Friday, July 21, 9 p.m. to 5 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • Three right lanes on I-285 eastbound from Roswell Road to Perimeter Center Parkway
  • One left lane on I-285 eastbound at Lake Forrest Drive
  • One right lane on I-285 westbound from Glenridge Drive to Lake Forrest Drive
  • Two left lanes on I-285 westbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One right lane on Abernathy Road eastbound from Aria Boulevard to Mercedes-Benz Drive
  • One right lane on Barfield Road southbound from Abernathy Road to Mercedes-Benz Way
Closures and Detours: SR 400 northbound to I-285 eastbound (Detour Map)
  • Motorists traveling on SR 400 northbound to I-285 eastbound should use Exit 4B I-285 westbound and Exit 25 Roswell Road to access I-285 eastbound.
SR 400 northbound to Glenridge Connector (Detour Map)
  • Motorists traveling on SR 400 northbound to Glenridge Connector …
SR 400 southbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 southbound to I-285 westbound should use Exit 4B I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
Roswell Road to I-285 eastbound (Detour Map)
  • Motorists traveling on Roswell Road to I-285 eastbound should use I-285 westbound and Exit 24 Riverside Drive to access I-285 eastbound.
I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access Glenridge Drive.
Abernathy Road to SR 400 northbound (Detour Map)
  • Motorists traveling on Abernathy Road to SR 400 northbound should use Peachtree Dunwoody Road and Hammond Drive to access SR 400 northbound.
  • Motorists traveling west on Abernathy Road to SR 400 northbound should use Mercedes-Benz Drive (road changes to Barfield Drive) and Hammond Drive to access SR 400 northbound.
Lake Forrest Drive at I-285 Full Closure (Detour Map)
  • Motorists traveling on Lake Forrest Drive northbound should use Northwood Drive, Kingsport Drive (road changes to Lake Placid Drive), Roswell Road, Cliftwood Drive, Sandy Springs Circle, and Allen Road to access Lake Forrest Drive northbound.
  • Motorists traveling on Lake Forrest Drive southbound should use Allen Road, Roswell Road and Northwood Drive to access Lake Forrest Drive southbound.
I-285 eastbound to Ashford Dunwoody Road (Detour Map)
  • Motorists traveling on I-285 eastbound to Ashford Dunwoody Road should use Exit 30 Chamblee Dunwoody Road and I-285 westbound to access Ashford Dunwoody Road (Exit 29).
Peachtree Dunwoody Road to I-285 eastbound (Detour Map)
  • Motorists traveling from Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.
Saturday, July 22, 9 p.m. to 9 a.m. General Lane Closures & Traffic Pacings:
  • ++Two left lanes on I-285 eastbound CD lanes from Glenridge Drive to SR 400
  • ++One right lane on I-285 eastbound CD lanes from Roswell Road to SR 400
  • One left lane on I-285 westbound from Roswell Road to Lake Forrest Drive
Closures and Detours: SR 400 northbound to I-285 westbound (Detour Map)
  • Motorists traveling on SR 400 northbound to I-285 westbound should use Exit 4A I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.
Roswell Road to I-285 eastbound (Detour Map)
  • Motorists traveling on Roswell Road to I-285 eastbound should use I-285 westbound and Exit 24 Riverside Drive to access I-285 eastbound.
I-285 eastbound to Glenridge Drive (Detour Map)
  • Motorists traveling on I-285 eastbound to Glenridge Drive should use Exit 25 Roswell Road to access Glenridge Drive.
I-285 eastbound to Ashford Dunwoody Road (Detour Map)
  • Motorists traveling on I-285 eastbound to Ashford Dunwoody Road should use Exit 30 Chamblee Dunwoody Road and I-285 westbound to access Ashford Dunwoody Road (Exit 29).
Peachtree Dunwoody Road to I-285 eastbound (Detour Map)
  • Motorists traveling from Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.
Sunday, July 23, 9 p.m. to 9 a.m. General Lane Closures & Traffic Pacings:
  • (No Closures)
Closures and Detours:
  • (No Closures)
Click here for more information. For email updates on this project here: https://dot.us20.list-manage.com/subscribe?u=85e8270674fc9a47b18bf99be&id=92621e6905 For real-time construction & traffic conditions, visit 511ga.org or download the Georgia 511 app (available in Google Play and Apple App Store).

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