Building a better commute
Your guide to navigating projects and construction in Perimeter.
Abernathy Road Diverging Diamond Interchange (DDI)
June 2019 – Summer 2023
Closure of one westbound turn lane on Abernathy Road, turning south onto SR 400. Additional modifications are possible in the future and will be shared once available.
Transform 285 @ 400 Preparing for Abernathy Road DDI – March 2022
GA-400 Express Lanes
Path 400 Extension South from Glenridge to Buckhead
TBD – Project in design phase.
The project will provide a bike/pedestrian route that runs more than 5 miles and serves as a greenway that connects Buckhead to Perimeter. Path 400 will eventually join the Atlanta Beltline, providing a key link to the regional trail network.
I-285 Top End Express Lanes
2025-2035
TBD – Project in conception phase.
The project will add two new at-grade, elevated, and barrier-separated express lanes in both directions on I-285 between I-20 on the western side and I-20 on the eastern side. The project is planned as segments, with a segment from Raider Drive west to Atlanta Road, another from North Shallowford east to I-20, and a central segment spanning Raider to North Shallowford and north along GA-400 to North Springs Station. The entire corridor will be barrier-separated express lanes (like those on I-75), and is planned to be delivered in a staggered process over the next 10-15 years. Additional information is available here.
SR400 Northbound Shared-Use Path
None
The Transform 285/400 Improvement Project will add nearly one mile of a shared-use path to the Perimeter area. The shared-use path will accommodate both bicyclists and pedestrians and will run along SR 400 northbound, with access points at Johnson Ferry Road and Peachtree Dunwoody Road.