Sam Rayburn Tollway

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Sam Rayburn Tollway sign.pngToll Texas SRT new.svg

Sam Rayburn Tollway
State Highway 121 Tollway
Route information
Length26 mi[1] (42 km)
Major junctions
Southwest end I-635 in Grapevine
  I-35E / US 77 in Lewisville
Dallas North Tollway in Plano
Northeast end US 75 / Spur 399 in McKinney
Highway system

The Sam Rayburn Tollway (formerly the State Highway 121 Tollway) is a tollway operated by the North Texas Tollway Authority[2] that runs from Grapevine to McKinney. Its frontage road is State Highway 121.

The original portion of the toll road from Business 121 near Coppell to FM 2281 opened in May 2006, and toll collection started December 1 of that year. The tolled portion extended to Hillcrest Road in Plano/Frisco on August 31, 2008. The tollway was extended to Custer Rd. on September 1, 2009, and again to Hardin Blvd. in McKinney on October 1, 2009.

The tollway (formerly named 121 Tollway) was renamed in honor of Sam Rayburn at a North Texas Tollway Authority meeting on March 16, 2009.

The tollway also currently features two five-level stack interchanges, at Dallas North Tollway and Interstate 35E/US 77.


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

  • Segment 1, from Denton Tap Road to Old Denton Road, opened to traffic in July 2006.
  • Segment 2, which runs from Old Denton Road to Hillcrest Road, officially opened to traffic on Sept. 1, 2008, when NTTA took full responsibility for Segments 1 and 2 as well as the operation, maintenance and construction of the remaining segments of the SRT.
  • NTTA contractors began work on Segment 3 of the SRT in March 2008. On Sept. 1, 2009, the NTTA opened the main lanes from Hillcrest Road to just east of Custer Road. On Sept. 29, 2009, the NTTA opened the main lanes from just east of Custer Road to west of Hardin Boulevard.
  • Segment 4 encompasses the Sam Rayburn Tollway/U.S. 75 interchange, from west of Hardin Boulevard to just east of U.S. 75. Construction on this portion of the corridor began in December 2008. Four major direct-connecting ramps were open to traffic in December 2010. The last two ramps were opened in March 2011.
  • The Sam Rayburn Tollway/Dallas North Tollway interchange is referred to as Segment 5. The NTTA began construction on Segment 5 in February 2010. It was completed in 2012.

Exit list[edit]

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

SH 121 south / Bus. SH 121 north – D/FW Airport, Fort Worth
DallasCoppellLewisville lineDenton Tap Road
DentonLewisvilleMacArthur Boulevard
I-35E / SH 121 south – Denton, Dallassouth end of SH 121 overlap; no direct access from SRT north to I-35E north (signed at MacArthur Boulevard); I-35E exit 447A northbound, 448A southbound
CarrolltonMarchant Boulevard / Huffines Boulevard
SH 121 north / Hebron Parkwaynorth end of SH 121 overlap
Carrollton Parkway
Lewisville FM 544 (Parker Road)no direct southbound exit (signed at FM 2281)
FM 2281 – Carrollton

Bus. SH 121 south
no direct northbound exit
Standridge Drive / Castle Hills Drive
FM 423 (Main Street) / Josey Lane
The ColonyPaige Road / Plano Parkway
Nebraska Furniture Mart Drivenorthbound exit and southbound entrance
Spring Creek Parkway
CollinPlanoFrisco lineLegacy Drive
Dallas Parkwayno separate southbound exit (signed at Parkwood Boulevard)
Dallas North Tollway
Parkwood Boulevard
SH 289 (Preston Road) / Ohio Drive
Hillcrest Road / Rasor Boulevard / Ohio Drive
Coit RoadAccess to Centennial Medical Center
Independence Parkway
AllenMcKinney quadripoint
FM 2478 (Custer Road)no direct southbound exit (signed at Exchange Parkway / Craig Ranch Parkway)
AllenMcKinney lineExchange Parkway / Craig Ranch Parkway
Alma Driveno direct northbound exit (signed at Exchange Parkway / Craig Ranch Parkway)
Stacy Road
Lake Forest Drive / Watters Road
Hardin Boulevard / Chelsea Boulevard
Frontage Roadnorthbound exit only
US 75 / SH 121 north to SH 5 (via Spur 399 east) / Medical Center Drive – Sherman, DallasUS 75 exit 38C, access to Medical Center of McKinney; road continues as Spur 399
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "Sam Rayburn Tollway Update". Archived from the original on October 26, 2011. Retrieved July 26, 2012.[self-published source]
  2. ^ "Sam Rayburn Tollway". Retrieved July 26, 2012.

External links[edit]

KML is from Wikidata
  • A YouTube video sponsored by the NTTA as the official tour (from Grapevine to McKinney)