Atlanta, US
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$690M
DB Cost
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10.5mi
Length
Scope of Work and Project Summary
This extensive project includes new flyover ramps, collector-distributor (CD) lanes, and other facilities to aid east-west travel along I-285 and north-south travel along SR 400. Bridge reconstructions to help expand surface streets to include additional lanes and expand sidewalk capacities.
The Transform 285/400 improvement project aims to alleviate traffic congestion and enhance safety near the I-285/SR 400 interchange in metro Atlanta.
Unique Project Aspects
Extended miles of collector-distributor lanes along I-285 (approx. 4.3 miles) and SR 400 (approx. 6.2 miles); new intersection redesign of Abernathy Road to a Divergent Diamond Interchange (DDI); and partnership with PATH 400 to create a mile stretch of shared-use path along SR 400 and I-285 to help connect to the expansive PATH 400 system.
Community Benefits
This area has over 500,000 motorists traveling through everyday and with the development of CD lanes these highway improvements will reduce commuter time by eight hours annually and reduce delays by over 12,500 hours daily.
Project Stats
- 34 Bridges
- 42 Lane Miles
- 148 Retaining Walls
- 16 Sound Barriers
Key Figures
Transform 285/400 Project, Atlanta, Georgia-
Client
Georgia Department of Transportation
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Location
Sandy Springs, GA (Greater Atlanta)
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Completion date
2025
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Project Size
10.5 miles
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Contract Value
$690 million
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