NTTA adding fourth lane to DNT between Sam Rayburn Tollway and US 380 in Frisco

The North Texas Tollway Authority (NTTA) is widening the DNT in Frisco, adding a fourth lane in both the northbound and southbound directions between the Sam Rayburn Tollway (SRT) and US 380.

While the NTTA widens the tollway, the City of Frisco plans to build additional lanes on the DNT's northbound and southbound frontage roads.

Together, the work is known as the DNT and Dallas Parkway widening project. It covers both the tollway's main lanes and its frontage roads along the same stretch between the SRT and US 380.