85 Study

The Georgia Department of Transportation (GDOT) and Gwinnett County are partnering to conduct a comprehensive corridor study along I-85 between I-285 and I-985. The study area is roughly 18 miles long and is primarily located within Gwinnett County, with a small portion in DeKalb County. The study will propose solutions for the corridor to reduce congestion, enhance traffic operations, and improve safety. Through collaboration with stakeholders and the public, a wide range of potential alternatives will be identified. These alternatives will be analyzed, and recommendations will be developed for implementation.

Please see the video for informational purposes along the 85 Corridor. However, the survey being referenced in the video has been closed as of February 29, 2020. If there are any comments, please email

Planning & Environmental Linkages (PEL)

The study is utilizing FHWA’s Planning and Environmental Linkages (PEL) framework to encourage transportation decision-makers to incorporate environmental considerations, community, and economic goals early in the transportation planning process. Decision-makers can then rely on more robust planning analysis, studies, and decisions throughout project development and during the environmental review processes of transportation projects. PEL aims to create a more unified decision-making process, resulting in less duplication of efforts and more informed project-level decisions.

About the Corridor

Miles along I-85
Mainline travel lanes
High-occupancy toll (HOT)
Active Study Map

Quick Facts

There are up to 340,000 vehicles per day traveling along the busiest part of the corridor.
The average morning congestion in the south-bound direction stretches for approximately 11 miles on weekdays.
This corridor is heavily used by commercial vehicles. Approximately 45% of freight passes through without stopping.
Get In Touch

Please send your questions and comments to the following representatives:

GDOT Contact:
Megan Weiss, AICP
I-85 Study Project Manager
Georgia Department of Transportation
Office of Planning - 5th Floor
600 West Peachtree Street, NW
Atlanta, GA 30308

For media requests, please contact: