Skip to content

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 the project web page often for the latest updates. Detour information is shown using red text.

Closures marked with **/++ are in conflict – only one of these closures will be implemented.

 

WHEN/WHERE: Traffic Impacts on I-285 and SR 400 from January 29, through February 5, 2024

Daytime Closures:

Monday, Jan. 29, to Friday, Feb. 2, 7 a.m. to 7 p.m.

  • One left lane on SR 400 southbound off-ramp to Abernathy Road
  • Shoulder closure on I-285 westbound off-ramp to Peachtree Dunwoody Road

Monday, Jan. 29, to Thursday, Feb. 1, 9 a.m. to 3 p.m.

  • One left lane on SR 400 southbound off-ramp to I-285 westbound 

Saturday, Feb. 3, 7 a.m. to 7 p.m.

  • Shoulder closure on I-285 westbound off-ramp to Peachtree Dunwoody Road

Continuous Weekend Closures: (Friday, Feb. 2, 9 p.m. to Monday, Feb. 5, 5 a.m.)

General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound lanes from Peachtree Dunwoody Road to Perimeter Center Parkway
  • One right lane on I-285 westbound CD lanes off-ramp to SR 400 northbound

Closures and Detours:

++Ashford Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 eastbound should use Perimeter Center Parkway (road changes to Lake Hearn Drive) and Peachtree Dunwoody Road to access I-285 eastbound.

++Peachtree Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.

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).

Abernathy Road to SR 400 southbound (Detour Map)

  • Motorists traveling on Abernathy Road to SR 400 southbound should use SR 400 northbound and Exit 6 Northridge Drive 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.

Glenridge Drive Full Closure (Detour Map)

  • Motorists traveling on Hammond Drive to I-285 westbound should use Hammond Drive and Roswell Road to access I-285 westbound.
  • Motorists traveling on Hammond Drive to Glenridge Connector should use Hammond Drive, Roswell Road, and Glenridge Drive to access Glenridge Connector.
  • Motorists traveling from I-285 eastbound to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.
  • Motorists traveling on Johnson Ferry Road to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.

Abernathy Road Full Closure (Detour Map)

  • Motorists traveling on Abernathy Road eastbound should use Mercedes-Benz Drive (road changes to Barfield Road), Mount Vernon Highway, and Peachtree Dunwoody Road to access Abernathy Road.
  • Motorists traveling on Abernathy Road westbound should use Peachtree Dunwoody Road, Mount Vernon Highway, and Barfield Road (road changes to Mercedes-Benz Drive) to access Abernathy Road.
  • Motorists traveling on SR 400 northbound to Abernathy Road westbound should use Abernathy Road, Peachtree Dunwoody Road, Mount Vernon Highway, and Barfield Road (road changes to Mercedes-Benz Drive) to Abernathy Road westbound.
  • Motorists traveling on SR 400 southbound to Abernathy Road eastbound should use Abernathy Road, Mercedes-Benz Drive (road changes to Barfield Road), Mount Vernon Highway, and Peachtree Dunwoody Road to access Abernathy Road eastbound.

Overnight Closures:  

Monday, January 29, 9 p.m. to 5 a.m.
General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound at Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes at Roswell Road to Glenridge Drive
  • Two left lanes on I-285 eastbound at SR 400
  • Two left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive
  • One right lane on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station
  • Pacing on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station

Closures and Detours:

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.

SR 400 southbound to Hammond Drive (Detour Map)

  • Motorists traveling on SR 400 southbound to Hammond Drive should use Exit 5 Abernathy Road and Mercedes-Benz Drive (road changes to Barfield Road) to access Hammond Drive.

Roswell Road to I-285 westbound (Detour Map)

  • Motorists traveling on Roswell Road to I-285 westbound should use 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 25 Roswell Road to access Glenridge Drive.

Tuesday, January 30, 9 p.m. to 5 a.m.
General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound at Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes at Roswell Road to Glenridge Drive
  • Two left lanes on I-285 eastbound at SR 400
  • Two left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive
  • One right lane on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station
  • Pacing on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station

Closures and Detours:

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.

I-285 eastbound to SR 400 northbound (Detour Map)

  • Motorists traveling on I-285 eastbound to SR 400 northbound should use Exit 27 SR 400 southbound and Exit 3 Glenridge Connector to access SR 400 northbound.

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 Hammond Drive (Detour Map)

  • Motorists traveling on SR 400 southbound to Hammond Drive should use Exit 5 Abernathy Road and Mercedes-Benz Drive (road changes to Barfield Road) to access Hammond Drive.

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).

** Roswell Road to I-285 westbound (Detour Map)

  • Motorists traveling on Roswell Road to I-285 westbound should use I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.

++ Ashford Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 eastbound should use Perimeter Center Parkway (road changes to Lake Hearn Drive) and Peachtree Dunwoody Road to access I-285 eastbound.

++ Peachtree Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.

SR 400 northbound CD lanes to Abernathy Road (Detour Map)

  • Motorists traveling on SR 400 northbound to Abernathy Road should use Northridge Road and SR 400 southbound to access Abernathy 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.

Glenridge Drive Full Closure (Detour Map)

  • Motorists traveling on Hammond Drive to I-285 westbound should use Hammond Drive and Roswell Road to access I-285 westbound.
  • Motorists traveling on Hammond Drive to Glenridge Connector should use Hammond Drive, Roswell Road, and Glenridge Drive to access Glenridge Connector.
  • Motorists traveling from I-285 eastbound to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.
  • Motorists traveling on Johnson Ferry Road to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.

Wednesday, January 31, 9 p.m. to 5 a.m.
General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound at Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes at Roswell Road to Glenridge Drive
  • Two left lanes on I-285 eastbound at SR 400
  • Three left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive
  • One right lane on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station

Closures and Detours:

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.

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.

I-285 westbound to SR 400 southbound (Detour Map)

  • Motorists traveling on I-285 westbound 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 Hammond Drive (Detour Map)

  • Motorists traveling on SR 400 southbound to Hammond Drive should use Exit 5 Abernathy Road and Mercedes-Benz Drive (road changes to Barfield Road) to access Hammond Drive.

Roswell Road to I-285 westbound (Detour Map)

  • Motorists traveling on Roswell Road to I-285 westbound should use I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.

**Ashford Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 eastbound should use Perimeter Center Parkway (road changes to Lake Hearn Drive) and Peachtree Dunwoody Road to access I-285 eastbound.

**Peachtree Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.

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.

Glenridge Drive Full Closure (Detour Map)

  • Motorists traveling on Hammond Drive to I-285 westbound should use Hammond Drive and Roswell Road to access I-285 westbound.
  • Motorists traveling on Hammond Drive to Glenridge Connector should use Hammond Drive, Roswell Road, and Glenridge Drive to access Glenridge Connector.
  • Motorists traveling from I-285 eastbound to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.
  • Motorists traveling on Johnson Ferry Road to Glenridge Drive north should use Glenridge Drive, Roswell Road, and Hammond Drive to access Glenridge Drive north.

Thursday, February 1, 9 p.m. to 5 a.m.
General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound at Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes at Roswell Road to Glenridge Drive
  • ++Three left lanes on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • ++One right lane on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • Two left lanes on I-285 eastbound at SR 400
  • Three left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive
  • One left lane on SR 400 southbound at Mount Vernon Highway
  • One right lane on SR 400 southbound CD lanes from Spalding Drive to North Springs MARTA Station

Closures and Detours:

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.

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 Abernathy Road (Detour Map)

  • Motorists traveling on SR 400 southbound to Abernathy Road should use Exit 5B Hammond Drive and SR 400 northbound to access Abernathy Road.

**SR 400 southbound to Hammond Drive (Detour Map)

  • Motorists traveling on SR 400 southbound to Hammond Drive should use Exit 5 Abernathy Road and Mercedes-Benz Drive (road changes to Barfield Road) to access Hammond Drive.

Roswell Road to I-285 westbound (Detour Map)

  • Motorists traveling on Roswell Road to I-285 westbound should use I-285 eastbound and Exit 29 Ashford Dunwoody Road to access I-285 westbound.

++Ashford Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 eastbound should use Perimeter Center Parkway (road changes to Lake Hearn Drive) and Peachtree Dunwoody Road to access I-285 eastbound.

++Peachtree Dunwoody Road to I-285 eastbound (Detour Map)

  • Motorists traveling on Peachtree Dunwoody Road to I-285 eastbound should use Lake Hearn Drive, Hammond Drive, and Ashford Dunwoody Road to access I-285 eastbound.

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, February 2, 9 p.m. to 9 a.m.
General Lane Closures & Traffic Pacings:

  • One right lane on I-285 eastbound at Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes at Roswell Road to Glenridge Drive
  • ++Three left lanes on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • ++One right lane on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • Two left lanes on I-285 eastbound at SR 400
  • Three left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive

Closures and Detours:

++Ashford Dunwoody Road to I-285 westbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 westbound should use I-285 eastbound and Exit 30 Chamblee Dunwoody Road to access I-285 westbound.

Saturday, February 3, 9 p.m. to 9 a.m.
General Lane Closures & Traffic Pacings:

  • ++Three left lanes on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • ++One right lane on I-285 eastbound from Perimeter Center Parkway to Peachtree Dunwoody Road
  • One right lane on I-285 eastbound CD lanes from Perimeter Center Parkway to Peachtree Dunwoody Road
  • Three left lanes on I-285 westbound from Ashford Dunwoody Road to Peachtree Dunwoody Road
  • Two right lanes on I-285 westbound from Roswell Road to Long Island Drive

Closures and Detours:

++Ashford Dunwoody Road to I-285 westbound (Detour Map)

  • Motorists traveling on Ashford Dunwoody Road to I-285 westbound should use I-285 eastbound and Exit 30 Chamblee Dunwoody Road to access I-285 westbound.

 

Exact construction dates may change due to weather or other factors. Motorists are cautioned to reduce their speed while traveling through work zones. Pay attention and watch for workers. Before heading out, get real-time information on work status and traffic conditions. Call 511, visit http://www.511ga.org/ or download the Georgia 511 app.

More like this

Perimeter Pursuit
Explore Perimeter & Win Prizes!  March 25th – April 30th Embark on an exhilarating adventure with Perimeter Pursuit, a community discovery challenge hitting the streets of Perimeter on March 25th! Lace up your walking shoes, download the Goosechase app, and get ready for an unforgettable adventure with Perimeter Pursuit.
Read More
Transform 285/400: Traffic Impact Report
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.
Read More
Transform 285/400: Final SR 400 Southbound Exit to Abernathy Road and Hammond Drive opens Dec. 19
Weather permitting, Georgia Department of Transportation contractors will implement the final, new State Route 400 exiting pattern for southbound drivers seeking Abernathy Road and Hammond Drive that will begin a mile sooner at Exit 5C North Springs MARTA.
Read More