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Fourth Lane Work on Dallas North Tollway Moves Toward Belt Line Road

Construction on NTTA’s Dallas North Tollway has been underway for nearly a year between Sam Rayburn Tollway and the President George Bush Turnpike. On March 28, construction extended to the next section of the DNT from PGBT to Belt Line Road. Construction crews are hard at work restriping lanes, adding safety barriers and updating speed limit signs in the area.

Safety remains at the forefront for NTTA. To help keep road workers and drivers safe in work zones, the current reduced 60 mph speed limit between the SRT and the Bush Turnpike has extended south to Frankford Road. The speed limit between Frankford and Belt Line Roads has lowered to 55 mph. The lowered speed limits will remain in place for the duration of construction. As construction crews begin to move to the northbound portion of DNT, those speed limits also will be reduced.

The improvements in this segment include:

  • Restriping to add a fourth lane on the southbound DNT between the Bush Turnpike and the Belt Line Road exit
  • Restriping to extend the existing fourth lane on the northbound DNT between the Trinity Mills Road exit and the Bush Turnpike
  • Overlaying a new surface on the existing pavement
  • Relocating the existing light poles from the center median to the outside of the roadway

Weather permitting, this work will be complete in early 2018.

These improvements are part of the overall DNT Improvement Projects to improve mobility and safety in the area and respond to the increase in traffic demand.

For more information on the DNT Improvement Projects, including lane closures, visit, email or call 972-628-3134.