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.

AASHTO's Podcast

Listen to AASHTO's interview with Georgia DOT representatives Jannine Miller and Charles Robinson about the I-85 Corridor Study.

Access Podcast

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 85Study@dot.ga.gov.

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Stay informed by subscribing to the 85 Study project updates.

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Planning and 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.


We Want to Hear From You

Please take a moment to tell us what you think and help us better understand issues that are important to you.  We appreciate your valuable input.

Upcoming Events

Come talk to the project team about the 85 Study at these upcoming events!

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About the Corridor


Miles along I-85




Mainline Travel Lanes in each direction


High-Occupancy Toll (HOT) Lane in each direction



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.

Stay Connected

Please send your questions and comments to the following representatives:

Project Manager
Megan Weiss, AICP
Georgia Department of Transportation
Office of Planning – 5th Floor
600 West Peachtree Street, NW
Atlanta, GA 30308

For media requests, please contact mediarequests@dot.ga.gov