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What to Expect Over the Next Couple of Months on LBJ

New Lane Configuration


Over the coming weeks, drivers  will witness innovative efforts of project planners to increase local mobility for adjacent businesses and motorist by ramping up construction of bypass lanes and frontage roads in many areas between the Dallas North Tollway and I-35.  


  • By taking advantage of lower summertime traffic volumes it will allow for the opening of the new continuous frontage roads and all the bypass lanes this year rather than the end of 2015.
  • Providing improved incident responses in the corridor and increasing local mobility for adjacent businesses and the traveling public.


  • One main lane in each direction of LBJ between I-35 and the Dallas North Tollway (DNT) will be utilized to construct bypass lanes 2 years earlier than planned.
  • Upcoming Configuration — 3 lanes with 10’ shoulders and longer ramps, in most areas, providing emergency vehicle access for incident responses.





  • The 3 lane configuration will be in place until the end of the project, however as progress is made new pavement will open.


Construction Goals

Construction Goals




Note: A bypass lane is an auxiliary lane that allows drivers to bypass signals at major intersections.  They allow for the continuous flow of traffic along the frontage road.

18 Comments Post a comment
  1. Thanks for the updates! This looks positive, and the developments are always interesting!

    May 20, 2013
  2. This seems to be more about local businesses than true mobility. If you put it up to a vote I’m sure more people would rather have more mobility on 635 than on the frontage road. If I’m sitting in traffic on the main highway I’m gonna care less about the benefit of open frontage roads and a lot more about losing one main lane. The traffic problems are on the main lanes not the frontage roads.

    May 20, 2013
    • Part of this effort is to remove some of that local traffic off of LBJ and move it to the frontage roads. This will split traffic patterns and open up more room for commuter traffic.

      May 21, 2013
  3. Will the main lanes used to construct the bypass lanes only be closed at night or will they be closed 24/7?

    May 21, 2013
    • The main lanes configuration will be in effect 24/7 from this point forward.

      May 21, 2013
  4. I thought it was stated there would be four main lanes during the times of rush hour Monday-Friday. So with this new configuration, I guess that is no longer an objective? For the next two years you are going to create a backup from the DNT to Josey with this change. And I don’t understand why would traffic leave 635 for the frontage road? In my case, would the frontage extend to Irving?

    May 22, 2013
    • Part of this effort is to remove some of that local traffic off of LBJ and move it to the frontage roads and bypass lanes. This will split traffic patterns and open up more room for commuter traffic.

      May 24, 2013
      • sculverhouse #

        Doesn’t really answer my question. Why would traffic opt for a bypass lane that may not go all the way to their destination nor have the same speed limit as LB?. And how much traffic can one bypass lane handle? Doesn’t seem like enough to have a significant impact on traffic volume for 635. I’m also confused because it seems as if we are only going to have three main lanes on 635 when it was stated there would be four. From your own FAQ: The LBJ Infrastructure Group expects to complete the fully redesigned roadway by late 2015, providing drivers with the same number of free general purpose lanes they enjoy today, as well up to six new managed express toll lanes and frontage roads.

        May 24, 2013
      • Local traffic that live or work along LBJ will utilize the bypass lanes more so than LBJ pass through motorists. Those drivers also wanting to access any of the local businesses in this area will use the bypass lanes. The bypass lanes allow for continuous traffic off of LBJ as an alternative.

        Also, originally the plan was to keep four lanes on LBJ but its a design-build project and the plans have changed…..and for the better. Upon completion of the project, four general purpose lanes will be restored in this area.

        May 29, 2013
      • While local traffic that live or work along LBJ will utilize the bypass lanes a fourth main lane is needed more then the need to take away that lane in favor of a bypass/frontage road lane.

        May 30, 2013
  5. sculverhouse #

    I fail to see how reducing LBJ from four lanes to three between DNT and Josey for the next 2.5 years is better. You will have backed up traffic for 4-5 miles even without any traffic incidents. That stretch of road will be impassable when there is an accident.

    May 29, 2013
    • If the purpose was to give emergency vehicles better access on shoulders to accidents then why do we have orange barricade drums in the shoulder? That seems counter productive.

      July 11, 2013
      • Once we complete the stripping we will remove the barrels. Just a little bit more to go.

        July 18, 2013
      • Thx Andy

        July 18, 2013
  6. And as I recall when this project started it was proudly promoted that 4 main lanes would be open throughout the whole project and now it seems after pressure from businesses, not motorists, the contractors have agreed to make these changes.

    May 30, 2013
  7. I can’t seem to find which lane be eliminated when driving eastbound on LBJ at I-35E. Currently, there is one lane from northbound I-35E, one lane from southbound I-35E, and two thru lanes on LBJ that make up the four lanes.

    For westbound LBJ, where will the fourth lane be eliminated – before or after where traffic merges onto LBJ from the DNT?

    May 30, 2013
    • Missy on westbound LBJ it will go to three after the DNT on ramp, the fourth in this area will act as an auxillary lane onto LBJ. Going eastbound on LBJ the left lane of the throughlanes over I-35 will merge with the traffic coming from northbound 35 onto . YT

      May 30, 2013

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