The North Texas Tollway Authority (NTTA) is an organization that maintains and operates toll roads, bridges, and tunnels in the North Texas area. Functioning as a political subdivision of the State of Texas under Chapter 366 of the Transportation Code, the NTTA is empowered to acquire, construct, maintain, repair and operate turnpike projects; to raise capital for construction projects through the issuance of turnpike revenue bonds; and to collect tolls to operate, maintain and pay debt service on those projects. The NTTA is governed by a nine-member board of directors, two appointed by each of the four counties in its service area: Collin County, Dallas County, Denton County and Tarrant County as well as one appointed by the Texas Governor. North Texas Tollway Authority is a non-profit entity, and performs many of the same functions as the Texas Department of Transportation, but is limited solely to facilities that it operates for revenue. Board of Directors There are nine members of the NTTA Board of Directors. Eight members are appointed by four counties, two per county. The ninth member is appointed by the governor. Of these members, one is elected to serve as board chairman, and another is elected to serve as vice chairman. Current roadways Tollways Dallas North Tollway President George Bush Turnpike Sam Rayburn Tollway Chisholm Trail Parkway 360 Tollway Bridges and tunnels Addison Airport Toll Tunnel Lewisville Lake Toll Bridge Mountain Creek Lake Bridge Planned roadways or expansions Dallas North Tollway: northern extension to just north of the Grayson County line History Texas Turnpike Authority history The Texas Turnpike Authority (TTA) began construction on the state's first toll road, the Dallas–Fort Worth Turnpike, in 1955 and opened the road in 1957. Original plans were for the bonds on the Turnpike to be retired in 1995; however, the bonds were retired in 1977 (17 years ahead of schedule) and tolls were then removed from the road, which the next year was officially designated as Interstate 30 (I-30). Construction began on NTTA's oldest existing toll road, the Dallas North Tollway, in 1966, and its first segment (from I-35E to I-635) was opened in 1968. The Tollway (as it is popularly known) has (along with general Dallas-area growth) expanded continually northward, opening extensions in 1987, 1994, and most recently in 2007. TTA started construction in 1977 on its first toll bridge, the Mountain Creek Lake Bridge, which opened in 1979. The