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).
CURRENT MAINTENANCE PROJECTS
Dallas North Tollway mainlane bridge maintenance will take place this spring between Downtown Dallas and I-635. Click HERE for more details.
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
• Placement of final pavement markings and striping on the mainlanes and ramps was completed mid-December.
• Construction of the U-turn lanes under the Gaylord Pkwy. bridge is complete.
What's Next?
• Final construction of the U-turn lanes under the Fields Pkwy. bridge is ongoing.
• Landscaping and signing work will continue into the spring.
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 continued.
• Phase 4A: Subgrade placed from First St. to north of Frontier Pkwy.
• Phase 4A: Light Farms Way and Frontier Pkwy. bridge decks completed, and beams and deck panels placed at
Doe Branch Creek.
• Phase 4A: Bridge deck work continued south of First St.
What's Next?
• Phase 4A: Construction of the mainlanes with subgrade and concrete placement.
• Phase 4A: Intersection structures work will continue with beams, deck and concrete placement at Doe Branch Creek, Punk Carter Pkwy. and Collin County Outer Loop.
• Phase 4A: Construction of frontage road tie-in lane between exit and entrance ramps on north- and southbound Dallas Pkwy.
Project Information
Email: @email
Public Involvement: (469) 608-6880
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