I-285 Advanced Improvement Projects
The Major Mobility Investment Program (MMIP) will build a better Georgia through enhanced mobility and safety, fueling economic growth, and improving quality of life. Through these major projects, Georgia DOT will deliver some of the nation’s most innovative transportation solutions and newest engineering and technological advances.
As the MMIP has developed and design work has progressed, we’ve evaluated how we are delivering the program and refined it to advance six improvement projects along I-285. Advancing these projects, which were already part of the MMIP, will provide local road improvements earlier, mitigate traffic challenges during the construction of the major express lanes’ projects, provide early operational improvements to the I-285 general purpose lanes, and maintain healthy competition among our construction developer partners.
Map of Projects
| Project | Description | Estimated Construction Start | Estimated Open to Traffic |
| I-285 Westbound Collector-Distributor (CD) Lanes | Extends CD lanes constructed under the Transform 285/400 project from Chamblee Dunwoody Road to Ashford Dunwoody Road | Q1 2022 | Q4 2023 |
| I-285/Peachtree Industrial Boulevard Interchange Improvements | Provides CD lanes and reconfigures the interchange ramp to reduce the bottleneck from I-285 to Peachtree Industrial Boulevard northbound | Q4 2021 | Q4 2023 |
| I-285 Westside Railroad Crossings Bridge Widenings | Adds one lane in each direction to two I-285 bridges over the Norfolk Southern and CSX railroads to accommodate the future I-285 Westside Express Lanes | Q4 2022 | Q1 2025 |
| I-285 Westside Bridge Replacements | Replaces and extends three overpass bridges to accommodate future I-285 Westside Express Lanes (South Cobb Drive over I-285, Bolton Road over I-285, and D.L. Hollowell over I-285) | Q1 2023 | Q2 2026 |
| I-285 Eastside Bridge Replacements | Replaces and extends three overpass bridges to accommodate future I-285 Eastside Express Lanes (Covington Highway over I-285, Redwing Circle over I-285, and Glenwood Road over I-285) | Q4 2021 | Q3 2024 |
| I-285 Westbound Auxiliary Lane Extension | Adds an auxiliary lane along I-285 between Roswell Road and Riverside Drive as well as the replacement of the I-285/Mount Vernon Highway bridge | Q4 2022 | Q3 2024 |
Noise Barriers
Noise barriers will be evaluated as part of this project in accordance with the Georgia DOT noise policy and Federal Highway Administration noise regulations. As the environmental field work and roadway design moves forward, property owners and renters who are eligible for a proposed noise barrier will be notified of the opportunity to participate in noise barrier voting. Download a noise barrier fact sheet here.
Contact Information
Email: Advanced_Improvements@dot.ga.gov
Mailing Address: Georgia DOT – One Georgia Center, 600 West Peachtree Street, Atlanta, GA 30308