July 23, 2013 - Cobb County - Southbound traffic on I75 as seen from Allgood Road, south of the I575 merge. Morning commute traffic on I75 in Cobb County. State transportation officials on Tuesday will select the leading contractor to design and build the largest transportation project in state history, 30 miles of optional toll lanes on I-75/I-575 in Cobb and Cherokee counties that are estimated to cost up to a billion dollars. BOB ANDRES / BANDRES@AJC.COM
In just a few months, a final contract will be signed to build the most expensive road construction project in state history — $840 million optional toll lanes on I-75/I-575 in Cobb and Cherokee counties.
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