Oklahoma Turnpike Authority announces reroute of South Extension Turnpike to avoid Lake Thunderbird

OU Daily By Madeline Hoffmann

March 5, 2025

The Oklahoma Turnpike Authority announced Tuesday it will reroute the planned alignment of the South Extension Turnpike expansion, a part of the ACCESS Oklahoma project.

The proposed South Extension Turnpike is an approximately 19-mile highway expansion, which would stretch from the East-West Connector in Franklin to Interstate 35 in Slaughterville. In the original plan, the expansion would have run just west of Lake Thunderbird.

ACCESS Oklahoma is a 15-year, $8.2 billion plan to construct new turnpikes and expand existing highways statewide, including two turnpikes that would run through Norman.

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