The Georgia Department of Transportation (GDOT) in the US has cancelled its plan to construct a $1.1bn West by Northwest project that would have added toll roads to stretches of Interstates 75 and 575 in Cobb and Cherokee counties.

It did not cite any reason for the cancellation of the project, however, it said in a statement said: "The department is examining other available options for the delivery of this project."

GDOT had planned to build the project in public private partnership which would have built 18 miles of toll lanes on the I-75 and 11 miles of toll roads on the I-575.

The proposed road, called the Northwest Corridor project, would have run from Akers Mill Road to the Cherokee County line, just north of Hickory Grove Road, while the 11 mile road on Interstate- I-575 would have spanned from the Interstate 285 interchange to the I-575.

There were plans to have two lanes, with one reversible lane covering the remainder of the project running from the I-75 to Sixes Road in Lebanon.

GDOT had shortlisted three contracting teams comprising of 15 local, national and international engineering, construction and financing firms for the project.

Project partners included Atlanta, US-based Archer Western Contractors, Georgia Mobility Partners and Northwest Atlanta Development Group, which includes Marietta, CW Matthews Contracting.

The request for proposal released by GDOT required the firms to submit responses by 3 February, 2012.

Construction was scheduled to start in spring 2013 and the road was expected to open in autumn 2016.

The project was planned to be funded through $200m from gas taxes, another $100m from revenue bonds, while private investors would have provided the remaining $700m.

The project is part of GDOT’s $3bn plan to add managed lanes across the Atlanta area.