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Credit: Andria Brooks

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Credit: Andria Brooks

The I-285/Ga. 400 interchange reconstruction project has reached a new, critical milestone.

The approved environmental impact clearances issued by the Federal Highway Administration mean that Georgia transportation planners can move forward with selecting a team to design, build and partially finance the project. At an estimated cost of $1.1 billion, it will be the most expensive highway project in state history.

“This is an amazing win for our team to be able to obtain approved environmental documents in such a short time frame,” said Georgia Department of Transportation Commissioner Russell McMurry.

Four teams have been short-listed to work on the project. Their proposals are due in September and the winning one will be announced in December.

The reconfiguration of the I-285/GA400 interchange and the feeder lanes along the corridor aims to improve congestion at one of metro Atlanta areas busiest locations.  Each day, more than 400,000 vehicles travel through the interchange.

The mammoth project will resemble Spaghetti Junction with flyover ramps and bridges and new collector-distributor lanes to smooth east-west travel on along I-285 and north-south travel along Ga. 400.

On I-285, it will stretch from west of Roswell Road to east of Ashford Dunwoody Road. On Ga. 400, the proposed project would begin just south of the Glenridge Connector and extend north to the Hammond Drive interchange area.

The new interchange is anticipated to open to traffic in 2020.