BUILDING A BETTER COMMUTE

Your guide to navigating projects and construction in Perimeter.

Keep a pulse on major transportation projects currently underway in Perimeter.

Alerts are updated on our Construction Radar.

Easily share with your team the projects that impact your workplace by clicking the email icon next to each project.

Transform 285 / 400 Project

Construction Timeline:

2018 – December 2020

Traffic Changes:

Lane shifts and other modifications should be limited to nights and weekends. Additional modifications are possible in the future. Stay tuned for updates once more information is available.

More Information:

GDOT maintains a project website here.

Most Recent Update:
April 29, 2019

Abernathy Road Diverging Diamond Interchange (DDI)

Construction Timeline:

June 2019 – December 2020

Traffic Changes:

Closure of one westbound turn lane on Abernathy Road, turning south onto GA-400. Additional modifications are possible in the future and will be shared once available.

More Information:
August 23, 2019

Peachtree Dunwoody Road & 285 Bridge Replacement

Construction Timeline:

April 2019 – December 2020

Traffic Changes:

Closure of one northbound lane on Peachtree Dunwoody Road as it passes under I-285. This modification is intended to be constant through the end of the Transform 285/400 project.

Glenridge Drive & I-285 Bridge Replacement

Construction Timeline:

February 2019 – December 2020

Traffic Changes:

Closure of one southbound lane on Glenridge Drive as it passes under I-285. This modification is intended to be constant through the end of the Transform 285/400 project.

Mt. Vernon Highway Bridge Replacement

Construction Timeline:

April 2018 – December 2019

Traffic Changes:

One lane of travel in each direction on Mt. Vernon Hwy will be in place during construction; phase one of the bridge will be completed and traffic will be routed onto the new bridge. From there, the phase two bridge will be built.

More Information:
July 3, 2018

GA-400 Express Lanes

Construction Timeline:

2021-2027

Traffic Changes:

TBD – Project in design phase.

More Information:

More project information available here.

Transform 285 / 400 Project

Construction Timeline:

2018 – December 2020

Traffic Changes:

Lane shifts and other modifications should be limited to nights and weekends. Additional modifications possible in future (will update once more information is available)

More Information:

GDOT maintains a project website here.

Most Recent Update:
April 29, 2019

Abernathy Diverging Diamond Interchange (DDI)

Construction Timeline:

June 2019 – December 2020

Traffic Changes:

Closure of one westbound turn lane on Abernathy Road, turning south onto GA-400. Additional modifications are possible in the future and will be shared once available.

GDOT maintains a project website here.

More Information:
August 23, 2019

Peachtree Dunwoody Road & 285 Bridge Replacement

Construction Timeline:

April 2019 – December 2020

Traffic Changes:

Closure of one northbound lane on Peachtree Dunwoody Road as it passes under I-285. This modification is intended to be constant through the end of the Transform 285/400 project.

Glenridge Drive & I-285 Bridge Replacement

Construction Timeline:

February 2019 – December 2020

Traffic Changes:

Closure of one southbound lane on Glenridge Drive as it passes under I-285. This modification is intended to be constant through the end of the Transform 285/400 project.

Mt. Vernon Highway Bridge Replacement

Construction Timeline:

April 2018 – December 2019

Traffic Changes:

One lane of travel in each direction on Mt. Vernon Hwy will be in place during construction; phase one of the bridge will be completed and traffic will be routed onto the new bridge. From there, the phase two bridge will be built.

More Information:
July 3, 2018

GA-400 Express Lanes

Construction Timeline:

2021-2024

Traffic Changes:

TBD – Project in design phase.

More Information:

More project information available here.

Workplace Construction Resources

Spread the Word

Print and post this Transform 285/400 project fact sheet at your workplace.

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Navigate Construction in Perimeter

Construction-related travel delays can be frustrating, but you can make it a breeze for your employees. Discover simple steps, easy-to-understand strategies and commute support services in our field guide.

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Roll Out A Commuter Benefit Program

Guide your employees on alternative ways to work.

Connector’s Toolkit