The Sam Rayburn Tollway in Collin, Dallas and Denton Counties
The Sam Rayburn Tollway (SRT), formerly known as State Highway 121, extends approximately 26 miles through Collin, Dallas and Denton counties. The last section, improvements at the SRT/Dallas North Tollway interchange, was fully open to traffic as of Nov. 14, 2011. The toll road starts at Business 121 in Coppell/Lewisville and extends northeasterly to just east of U.S. 75 (Central Expressway in McKinney/Fairview. The Sam Rayburn Tollway features all-electronic toll collection. A cash option is not available.
Construction & Traffic Update
The Sam Rayburn Tollway (SRT) Update is an email sent out as needed that provides news about the Sam Rayburn Tollway's continuing progress and information about major traffic pattern changes. By signing up for the SRT Update, you will also receive the monthly SRt Corrisor Progress Report.
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Sam Rayburn Tollway Newsletter Update Archives
Sam Rayburn Tollway Project Information
Phone: (972) 628-3163
Email: SRT@ntta.org
More about the Sam Rayburn Tollway Project:
The NTTA conducted a public meeting on June 16, 2008, to discuss design enhancements the Authority had proposed for the Sam Rayburn Tollway / U.S. 75 (Central Expressway) interchange.
More information...
Construction of the interchange is now complete. View the schematic of the final interchange configuration.
View a map showing the Sam Rayburn Tollway/U.S. 75 interchange design that was approved in 2005.
View a map showing the approved Sam Rayburn/U.S. 75 interchange design currently under construction by the NTTA.
In addition to developing and operating the Sam Rayburn Tollway, the NTTA provided a payment of $3.2 billion at financial close to TxDOT; the Regional Transportation Council (RTC) will decide how those funds should be used for additional road projects throughout North Texas.
Click here to view the presentation of the NTTA's SH 121 proposal that was given to the Regional Transportation Council on June 14, 2007.
Click here to view the PowerPoint that was shown to the NTTA Board of Directors on May 7, 2007, and scroll down to view the Executive Summary of the NTTA’s proposal.
Click here to view a chronology of the Sam Rayburn Tollway (121 Tollway) project as it relates to the NTTA.
Corridor Manager: Brett Smith, P.E.
Email: SRT@ntta.org
For information: Leigh Hornsby, (972) 628-3163