MACON — The construction-gnarled nexus of two interstates that link Atlanta and Savannah has been a perilous, yearslong jumble of snaking lane shifts and traffic chutes that travelers and locals alike in this Middle Georgia city can’t wait to see disappear in their rearview mirrors.

Unfortunately, that’ll be a while.

The complex remaking of the Peach State’s crossroads junction at I-75 and I-16 and the 3-plus miles of road work surrounding it began in 2017.

The brunt of the $500 million project — a stretch from roughly the Ocmulgee River bridge southeasterly beyond the Macon Coliseum — is expected to be finished in 2027.

However, a 1-mile-or-so-long final phase to more smoothly transition I-75’s north and southbound lanes into and out of the I-16 interchange, just above the split that

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