The NTTA is a crucial component of the transportation system in North Texas, operating more than ninety centerline miles of toll roads in North Texas including the  Dallas North Tollway, President George Bush Turnpike, Chisholm Trail Parkway, Addison Airport Toll Tunnel, Mountain Creek Lake Bridge, Sam Rayburn Tollway and Lewisville Lake Toll Bridge. All of these roadways serve as key connectors for people throughout the region.

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