Major Southbound DNT Ramp Closure Starts May 20Long Term Closure of SB DNT exit ramp to John Hickman/Warren/Gaylord Pkwys. beginning May 20(May 19, 2025) As part of NTTA’s Tollway widening project, the southbound DNT exit ramp to John Hickman Pkwy. / Warren Pkwy. / Gaylord Pkwy. will be closed for four months beginning Tuesday, May 20 at 7 a.m. Additionally the southbound SH 121/Headquarters exit ramp is expected to reopen early Tuesday morning, prior to the above closure. Please use caution while driving in the work zone, or find an alternate route in advance. Use the Waze app to navigate around road closures. Click here to learn about Waze or install it on your smartphone. For more information about upcoming lane closures and traffic related news along NTTA roadways, visit Traffic Updates on NTTA.orgSee map of exit ramp closure above