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 on Proposed Widening of Sam Rayburn Tollway Held July 25

Public Comment Period continues through Aug. 9

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.

A public hearing to present the proposed improvements was held on Tuesday, July 25, 2017, at Taylor Elementary School in Plano. Prior to the public hearing, an open house was be conducted to allow for questions and review of project exhibits. NTTA staff were available to answer questions during the open house. The formal public hearing presentation started at 7:00 p.m. followed by a public comment period.

View the official Legal Notice and Project Map.

The presentation shown during the Public Hearing is available here.

The proposed project’s draft environmental document and schematic maps showing the location and design was presented at the public hearing. You may also see the environmental documents by clicking here.

View the draft schematic maps here.

Verbal and written comments from the public were received during the public hearing. Individuals still wanting to provide a written comment may do so until August 9, 2017. Written comments may be submitted in person or by mail to:

Attn: Mr. Sam Lopez
5900 W. Plano Parkway, Suite 100
Plano, TX 75093

Comments will also be accepted by email at All comments must be received or postmarked on or before August 9, 2017, to be part of the official Public Hearing Summary and Analysis.

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