The tolled portion extended to Hillcrest Road in Plano/Frisco on August 31, 2008.

The tollway was extended to Custer Road on September 1, 2009, and again to Hardin Boulevard in McKinney on October 1, 2009.

The Sam Rayburn Tollway project was divided into five segments, all of which have been completed.

Almost all exits include access to SH 121, which follows the frontage roads.

Due to the nearly continuous frontage road, most exits on the Tollway serve more than one roadway.