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New Diverging Diamond Intersection Opening Sunday

(Credit: Texas Department of Transportation)


The Texas Department of Transportation will open the diverging diamond intersection (DDI) at Slaughter Lane and MoPac on Sunday, Nov. 11, 2018, weather permitting. The Slaughter Lane bridge at MoPac and the exit ramp at southbound MoPac will be closed from Saturday, Nov. 10 at 3 p.m. to 10 a.m. Sunday, Nov. 11, when the DDI will open to traffic.


Final striping, permanent signals and overhead signs for the bridge will be installed by early 2019. In the meantime, additional temporary signage and lane markings will be in place to help motorists travel through the intersection until the permanent signs can be installed. Once the DDI is open, traffic flow in the area should improve.


Detours will be in place during this work and access to all businesses will be maintained. Police officers will be onsite to help direct traffic during the transition, and for up to one week after the DDI has opened to motorists. (See attached detour map.)


What to expect on Sunday, Nov. 11, after the DDI opens:


  • Follow the signs and stay in the lines to navigate the DDI
  • For motorists traveling straight through on Slaughter Lane, traffic will be shifted to the left on the bridge and exit the DDI to the right
  • For motorists turning left onto MoPac, traffic will be shifted to the left on the bridge and will exit the DDI to the left
  • MoPac through-traffic should stay to the left and travel under the Slaughter Lane overpass, avoiding the intersection
  • Traffic exiting at Slaughter Lane will be forced to turn left or right at the intersection There will be NO through-frontage road access


Motorists are encouraged to seek alternate routes during the closure, as delays are expected. TxDOT asks the traveling public to be patient and remain aware when traveling through the work zone.

Next steps for the project include constructing the La Crosse Avenue overpass and continuing work to extend the MoPac mainlanes. Work on the La Crosse Avenue overpass is anticipated to begin in early 2019.

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