DNT expansion to hit close to home

The lanes will be added to the outside of the existing lanes, according to NTTA spokeswoman Susan Slupecki.

Work also includes pavement surface overlay, restriping and relocation of existing light poles from the center median barrier.

The improvement project will also reconfigure the existing direct connector ramps at the DNT and President George Bush Turnpike interchange.

Toll rates are not expected to immediately increase as a result of construction.

"Toll rates will remain the same until we do a routine, biennial rate increase, which again is something we do every two years for all our roads," Slupecki said.

DNT project from US 380 northward

A project has been in the works for a 17.6-mile extension of the Dallas North Tollway northward from US 380 to FM 121, but no start date has been set.

The extension will be a limited-access toll road with six main lanes and four frontage road lanes. There is not yet an estimated cost for the project.

"At this time, there is not a schedule for construction or estimated completion date of the project," Slupecki said.

In 2008, the service road that will become DNT Phase 4A (US 380 to FM 428) frontage road opened to traffic as a two-lane road.

The most recent movement on the project took place in February 2013 at the NTTA board of directors meeting. The board approved an interlocal agreement with Denton County for the DNT Phase 4B southbound frontage road project, which would extend the tollway from FM 428 to the Grayson/Collin county line.

The interlocal agreement allows Denton County to pay for the design and construction of the southbound frontage roads and NTTA to procure and manage the project.

"The details of this interlocal agreement will be forthcoming as NTTA staff continues to work with project partners to progress the project," Slupecki said.