The Sam Rayburn Tollway (SRT) is a 26‑mile all‑electronic tollway linking Dallas Fort Worth International Airport to rapidly growing communities across Collin, Dallas and Denton counties. As part of a larger program to modernize the SRT/Dallas North Tollway (DNT) interchange, STV delivered full design services for Segment 5. The work enhances connectivity, improves mobility and supports long‑term regional growth in North Dallas.
What challenges did STV address?
The interchange serves one of the busiest and most rapidly developing areas in Texas. STV needed to design complex structural and roadway elements within a constrained footprint while maintaining traffic through the interchange during construction. Coordinating multiple disciplines – roadway design, structural engineering, drainage, illumination, and traffic control – added further complexity, as did ensuring the interchange integrated seamlessly with long-term North Texas Tollway Authority (NTTA) master plans.
What solutions did STV deliver?
STV developed the layout and PS&E design for four new direct connectors and provided structural design for retaining walls, drainage structures and major bridge components. The team used prestressed concrete beams, steel plate girders, concrete abutments, single‑column bents, straddle bents and drilled shaft foundations. STV also prepared illumination and traffic control plans and worked closely with the general engineering consultant and the NTTA to define an aesthetic theme for the interchange.
How does this project benefit the community?
The improved interchange increases capacity, eases congestion and strengthens mobility throughout the North Dallas region. The upgraded connectors support economic development and provide safer, more efficient travel for commuters accessing rapidly growing residential and commercial areas.
Key stats and accolades
- Four direct connectors designed
- Prestressed concrete and steel plate girder structures
- Retaining walls, drainage structures and major bridge elements
- Aesthetic theme developed for NTTA consideration
