The LBJ Express will open 3.6 miles of new TEXpress Lanes along Interstate 35E on July 12.

The elevated I-35E toll lanes go from the Loop 12 split north to Interstate 635 where drivers can either head east on I-635 or continue north onto the existing I-35E.

Drivers who use the TEXpress Lanes will pay for the 50 mph guarantee. The lanes are designed for through traffic with few exits.

“This segment will be critical for drivers who want to bypass the surface lane congestion at I-35E and offers them a more reliable connection from the LBJ Express to Irving, Dallas Love Field, the Medical District, Oak Lawn and more, said Dia Kuykendall, director of corporate affairs for LBJ Infrastructure Group.

The third phase of TEXpress Lanes are still being dug out along I-635. The lanes will be sunken below the main lanes. The $2.7 billion LBJ Express will be completed by December, 2015.

Eventually, North Texas will have six TEXpress Lane projects, dubbed Lexus Lanes by critics, with the long-term goal of creating a seamless network of tolled lanes.

The first TEXpress Lanes opened to traffic in December on the east end of the project, from Preston Road to Greenville Avenue. So far, 522,000 unique customers have used the 3.2-mile section of managed toll lanes, which had a set price range during the trail period.

Starting June 12, those TEXpress Lanes will start full congestion management tolling where the congestion is measured every five minutes and the rate is recalibrated. The goal is to keep the traffic moving at a minimum of 50 mph.

The TEXpress Lanes on the DFW Connector in Grapevine opened in April but drivers aren’t being charged yet. A sign along the highway says tolling will start this summer.

High occupancy vehicles with a TollTag or other valid tags can get a 50 percent discount on all TEXpress Lanes if they register before the trip using the Drive On TEXpress app or registering at

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