cushman & wakefield i-285/sr 400 interchange project summary
DESCRIPTION
A summary of the I-285/SR 400 Interchange Reconstruction Project in the Central Perimeter office submarketTRANSCRIPT
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Project Summary
I-285/SR 400 Interchange Reconstruction ProjectCushman & Wakefield Research
December 2015
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PROJECT SUMMARY According to the Georgia Department of Transportation, the proposed
improvements are designed to aid in reducing traffic congestion and improve
safety in the area surrounding the I-285/SR 400 interchange in metro Atlanta.
New flyover ramps, new collector-distributor lanes and other facilities to aid
east-west travel on along I-285 and north-south travel along SR 400 would be
constructed.
The proposed improvements are achieved in two projects:
• I-285/SR 400 Interchange Reconstruction
• SR 400 Collector-Distributor (CD) Lanes
PROJECT GOALS:
• Enhance Safety
• Improve operational efficiency
• Reduce weaving maneuvers along I-285 mainline
• Address lack of adequate ramp capacity at I-285/GA 400 Interchange
• Improve ramp geometry at I-285/GA 400 Interchange
QUICK FACTS
$1.056 billionThe combined design-build cost of the project is estimate
10.5 miles total distance of proposed improvements
2016/2017 proposed start date of construction
SOURCE: Georgia Department of Transportation
travel time savings per vehicle in 20198
hours
I-285/SR-400 Interchange Reconstruction Project Summary
Westbound Collector-Distributor
LanesWestbound I-285
General Purpose LanesEastbound I-285
General Purpose Lanes
Eastbound Collector- Distributor
Lanes
I-285 Typical Section Between Roswell Road and Glenridge Drive
(Looking East)
I-285 Typical Section Between Peachtree Dunwoody Drive and Ashford Dunwoody Road
Westbound Collector-Distributor
Lanes
PeachtreeDunwoody
Drive O�-Ramp
Westbound I-285General Purpose Lanes
Eastbound I-285General Purpose Lanes
Eastbound Collector-Distributor
Lanes
AshfordDunwoody
Road O�-Ramp
PeachtreeDunwoody
Drive On-Ramp
(Looking East)
SOURCE: Georgia Department of Transportation, I-285 at SR400 Interchange Reconstruction Display Board
SOURCE: Georgia Department of Transportation
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QUICK FACTS
LOCATIONThe proposed improvements will be provided along I-285 from west of Roswell
Road in Fulton County to east of Ashford-Dunwoody Road in DeKalb County (4.3
miles), and along SR 400 from Glenridge Connector to Spalding Drive (6.2 miles),
for a total project length of 10.5 miles.
Project Details
• The project proposes to construct new eastbound and westbound CD lanes
along I-285, as well as northbound and southbound CD lanes along SR-400,
new flyover bridges, reconstruction of existing ramps, and widening of existing
bridges within the interchange.
• “Braided” ramps would be constructed in the vicinities of Ashford Dunwoody
Road and Roswell Road to eliminate conflicts between traffic entering and
exiting SR 400 and traffic entering and exiting the Roswell Road and Ashford
Dunwoody interchanges, while preserving the recently completed projects at
both of these interchanges.
• Along SR 400, Along SR 400, the project would construct northbound and
southbound CD lanes from Glenridge Connector to Hammond Drive. This work
would tie into the adjacent SR 400 CD lanes project.
42 months expected construction duration of the project
2020 proposed completion date of project
SOURCE: Georgia Department of Transportation
travel time savings per vehicle in 20198
hours
Westbound Collector-Distributor
LanesWestbound I-285
General Purpose LanesEastbound I-285
General Purpose Lanes
Eastbound Collector- Distributor
Lanes
I-285 Typical Section Between Roswell Road and Glenridge Drive
(Looking East)
I-285 Typical Section Between Peachtree Dunwoody Drive and Ashford Dunwoody Road
Westbound Collector-Distributor
Lanes
PeachtreeDunwoody
Drive O�-Ramp
Westbound I-285General Purpose Lanes
Eastbound I-285General Purpose Lanes
Eastbound Collector-Distributor
Lanes
AshfordDunwoody
Road O�-Ramp
PeachtreeDunwoody
Drive On-Ramp
(Looking East)
SOURCE: Georgia Department of Transportation SOURCE: Georgia Department of Transportation
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Logan MenneManager,Research - Atlanta+1 404 853 [email protected]
Toby JorgensenSenior Analyst,Research - Atlanta+1 404 682 [email protected]
Sara BarnesSenior Analyst,Research - Atlanta+1 404 853 [email protected]
I-285/SR-400 Interchange Reconstruction Project Summary
For more information, contact:
Project Renderings
SOURCE: Georgia Department of Transportation
This report has been prepared solely for information purposes. It does not purport to be a complete description of the markets or developments contained in this material. The information on which this report is based has been obtained from sources we believe to be reliable, but we have not independently verified such information and we do not guarantee that the information is accurate or complete. Published by Corporate Communications.
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