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Transform 285/400: Traffic Impact Report

Weather permitting, Georgia Department of Transportation construction partners will implement a full closure of Peachtree Dunwoody Road tonight and Saturday night to expedite construction progress on the I-285 bridge over Peachtree Dunwoody Road. Emergency vehicles needing hospital access will be allowed through. 
 

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 Jan. 9, through Jan. 16, 2023 
 
Daytime Closures: 
Monday, January 9, to Friday, January 13, from 7 a.m. to 5 p.m. 
 
General Lane Closures & Traffic Pacings: 

  • Shoulder closure on I-285 westbound from Glenridge Drive to Roswell Road 

Continuous Weekend Closures: (Friday, Jan. 13, 9 p.m. to Monday, Jan. 16, 5 a.m.) 
 
General Lane Closures & Traffic Pacings: 
 
Closures and Detours: 
 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. 

 


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

  • Two left lanes on I-285 eastbound from Mount Vernon Highway to Lake Forrest Drive 

  • One left lane on I-285 westbound from Lake Forrest Drive to Mount Vernon Highway 

  • One right lane on I-285 westbound at Chamblee Dunwoody Road 

Closures and Detours: 
 
Hammond Drive to SR 400 northbound(Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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. 

 


Tuesday, January 10, 9 p.m. to 5 a.m. 
General Lane Closures & Traffic Pacings: 

  • Two left lanes on I-285 eastbound from Mount Vernon Highway to Lake Forrest Drive 

  • One left lane on I-285 westbound from Lake Forrest Drive to Mount Vernon Highway 

  • One right lane on I-285 westbound at Chamblee Dunwoody Road 

Closures and Detours: 
 
Hammond Drive to SR 400 northbound(Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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, January 11, 9 p.m. to 5 a.m. 
 General Lane Closures & Traffic Pacings: 

  • Three left lanes on I-285 westbound from Glenridge Drive to Roswell Road 

  • Pacing I-285 westbound from Glenridge to Roswell Road 

  • Two left lanes on I-285 eastbound from Mount Vernon Highway to Lake Forrest Drive 

  • Shoulder closure on I-285 westbound from Glenridge Drive to Roswell Road 

  • One left lane on I-285 westbound from Lake Forrest Drive to Mount Vernon Highway 

  • One right lane on I-285 westbound at Chamblee Dunwoody Road 

Closures and Detours: 
 
Hammond Drive to SR 400 northbound (Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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, January 12, 9 p.m. to 5 a.m. 
 General Lane Closures & Traffic Pacings: 

  • Three left lanes on I-285 westbound from Glenridge Drive to Roswell Road 

  • Pacing I-285 westbound from Glenridge to Roswell Road 

  • One left lane on I-285 westbound from SR 400 to Glenridge Drive 

  • Shoulder closure on I-285 westbound from Glenridge Drive to Roswell Road 

Closures and Detours: 
 
Hammond Drive to SR 400 northbound (Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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. 

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. 

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 westbound to Roswell Road (Detour Map) 

  • Motorists traveling on I-285 westbound to Roswell Road should use Exit 24 Riverside Drive and I-285 eastbound to access Exit 25 Roswell Road. 

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. 

 


Friday, January 13, 9 p.m. to 5 a.m. 
 General Lane Closures & Traffic Pacings: 

  • Shoulder closure on I-285 westbound from Glenridge Drive to Roswell Road 

Closures and Detours: 
 
Hammond Drive to SR 400 northbound(Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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. 

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. 

 

Saturday, January 14, 9 p.m. to 5 a.m. 
Closures and Detours: 
 
Hammond Drive to SR 400 northbound (Detour Map) 

  • Motorists traveling on Hammond Drive to SR 400 northbound should use Peachtree Dunwoody Road, Barfield Drive, and Abernathy Road to access SR 400 northbound. 

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. 

 

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