Dallas North Tollway (DNT)
The Dallas North Tollway is a quick, safe and convenient connection for drivers between downtown Dallas and W. First Street in Prosper. The 33-mile road crosses through the cities of Dallas, Highland Park, University Park, Addison, Farmers Branch, Plano, Frisco and Prosper.
The first section of the tollway opened to traffic in June 1968 between downtown Dallas and Interstate 635 (LBJ Freeway). It was extended north to Briargrove Lane (just south of Frankford Road) in 1987 and to Legacy Drive in Plano in 1994. A 1.5-mile extension opened in 2004 up to Gaylord Parkway in Frisco, and an extension to US 380 opened in September 2007. In 2023, the bridges extending the DNT over US 380 into Prosper opened to travel.
NTTA will continue to extend the tollway to new destinations as the region’s northern communities continue to grow. The proposed Phase 4 extension will run nearly 14 miles from US 380 to the Collin/Grayson county line.
Learn about the latest DNT improvement projects. Learn more about its current and future extension toward the Grayson County line (DNT Phase 4 project).
Map of Dallas North Tollway (DNT)
Dallas North Tollway (DNT) Widening in Frisco
The Dallas North Tollway (DNT) has been widened between the Sam Rayburn Tollway (SRT) and US 380 to accommodate population growth in the area and improve access to business and entertainment venues.
This project added an additional lane in each direction to help traffic flow as population growth continues in Collin and Denton counties.
Along with widening the DNT mainlanes, the project team is reconstructing the intersection and DNT bridges over Fields Pkwy. in Frisco.
Opened to traffic: August 2025
Project Sections | Scope |
| SRT to US 380 | Addition of a fourth lane in each direction |
Recent Progress
• The northbound Eldorado Pkwy. exit ramp opened in its new location in early July.
• Reconstruction of the southbound John Hickman Pkwy./Warren Pkwy./Gaylord Pkwy. ramp is complete. The ramp opened in its new location in late July.
• The southbound Main St. exit ramp opened in its new location in late July.
• The additional lanes between SRT and US 380 opened to traffic on August 9.
• Installation of new signage and lighting throughout project area.
What's Next?
• Placement of final pavement markings is ongoing throughout the project limits on the DNT mainlanes and ramps.
• Construction of the U-turn lanes under the Gaylord Pkwy. and Fields Pkwy. bridges is ongoing.
• Finishing work and landscaping will continue into the fall.
Project Information
Email: @email
Public Involvement: (469) 608-6880
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DNT Phase 4 Project
The Dallas North Tollway (DNT) Phase 4 project will extend the tollway 13.7 miles north of US 380. When this extension is complete, it will provide a direct link between downtown Dallas and the growing communities in Collin and Denton counties.
Opening dates:
Phase 4A: Fall 2027
Phase 4B: To be determined.
Project Sections | Scope |
| Phase 4A | US 380 to FM 428, including DNT extension over US 380 |
| Phase 4B Frontage Road | Two-lane frontage road from FM 428 to Grayson County line |
| Phase 4B Mainlanes | FM 428 to Grayson County line |
| Proposed Grayson County Tollway | A Grayson County Regional Mobility Authority project that could extend the toll road into Grayson County (not an NTTA project) |
Recent Progress
• Phase 4A: Wall work continued.
• Phase 4A: Earthwork and drainage work.
• Phase 4A: Column, cap and deck work at intersections continued.
• Phase 4A: Beams and deck panels placed at First St., Prosper Trl., Frontier Pkwy. and Light Farms intersections.
• Phase 4A: Concrete placed on decks at First St. and Prosper Trl. intersections.
What's Next?
• Phase 4A: Construction of the mainlanes with wall, column, cap, beam, deck and concrete placement.
Project Information
Email: @email
Public Involvement: (469) 608-6880
Subscribe For Updates
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