SRT Description

Sam Rayburn Tollway Fourth Lane Project

srt_logo02Sam Rayburn Tollway Fourth Lane Project Description

Improvements to Sam Rayburn Tollway include constructing an additional lane in each direction, in the center median, along the entire 26-miles of the SRT, from west of Denton Tap Road to U.S. 75.

Design is in progress and construction is anticipated to begin mid-2018 and and be completed in 2021.
SRT_4thLn_Project Map_033115








Public Hearing Scheduled on Proposed Widening of Sam Rayburn Tollway
The North Texas Tollway Authority (NTTA) is proposing the addition of one main lane in each direction along the entire 26-miles of the Sam Rayburn Tollway (SRT). The new lanes, within the existing median, would be built from Business State Highway (SH) 121 (West) to U.S. Highway 75 in Collin, Dallas and Denton counties.

NTTA will conduct a public hearing Tuesday, July 25, 2017, to present the proposed improvements. The hearing will take place in the cafeteria at Taylor Elementary School, located at 9865 Gillespie Drive, Plano, TX 75025. Prior to the public hearing, an open house will be conducted from 6:30 until 7:00 p.m. to allow for questions and review of project exhibits. NTTA staff will be available to answer questions during the open house. The formal public hearing presentation will begin at 7:00 p.m. followed by a public comment period.

For additional information, please click here.

Project Status
See our Corridor Progress Report for the latest information. – April 2017

Corridor Progress Report
Every quarter, NTTA creates Corridor Progress Reports (CPR) for projects under construction or future projects. Click the link below to view the latest Corridor Progress Report for the SRT Fourth Lane Project. Check back for the latest information.

We can also email this report to you. If you would like to be added to our CPR distribution list, please send us a note at

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