NorthGate will be conducting a major traffic switch on the southbound SH 121 auxiliary lanes. The following closures will be in place to complete this traffic switch starting at 8 PM on Friday, 7/31 to 9 AM on Sunday, 8/2:

  • Full closure on southbound International Pkwy. north of DFW Airport. Traffic will be detoured to Main St. Associated closure:
    • Southbound SH 121 off-ramp to eastbound SH 114, detour to Main St.
  • Two right lanes closed on southbound SH 121 from Bass Pro Dr. to I-635.
  • Full ramp closure on eastbound SH 114/DFW Airport on-ramp at Bass Pro Dr. Traffic will be detoured to Main St.
  • Full ramp closure on southbound FM 2499 off-ramp to eastbound I-635/SH 114 and DFW Airport. Traffic will be detoured to southbound SH 121, then Main St.

What will change once this traffic switch is complete?

1) Southbound SH 121 Auxiliary Lanes will be put onto new pavement.

2) The southbound SH 121 exit to DFW Airport relocates to the Bass Pro Dr./I-635 exit.

You can stay up-to-date on the project through our website, Facebook, Twitter, and our texting service! Simply text DFWC4 to 77222 and sign up for alerts on major impacts to the project.


Welcome to the new DFW Connector website! We’ve updated the look and feel of the site to make it easier to navigate and find all the project information you’re looking for. Need information on the current I-635/SH 121 interchange project, including lane closures? Check out the Present Construction tab. Need information on any of the work we’ve completed since 2010? Look at our Past Construction tab. You can find even more information through our Facebook feed (to the right) or Twitter (link at the bottom). As always, you can also stay in touch by emailing our team at or calling us at 877-411-4212.

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NorthGate Constructors

In response to the unique challenges of the DFW Connector project, two of Texas’ most respected organizations in the highway construction industry – Fort Worth-based Kiewit Texas Construction L.P. and San Antonio-based Zachry Construction Corporation – joined to form NorthGate Constructors, a Joint Venture.

With resources that included access to thousands of Texas-based employees and the nation’s largest privately owned equipment fleet, NorthGate Constructors delivered the DFW Connector project for TxDOT and the motorists of North Central Texas.