Webber Awarded $53M Highway Underpass Construction in Travis County
HOUSTON, TX Webber, LLC, has been selected by the Texas Department of Transportation (TxDOT) to construct two underpasses at the intersections of SL1 (Mopac) and Slaughter Lane and SL1 and LaCrosse Avenue in Austin, Texas. The project was bid at $53 million and will be led by Project Manager Mario Rosino.
The intersection at Slaughter Lane will be constructed in two phases due to traffic and space constraints. The underpass at Slaughter Lane is a unique Diverging Diamond Interchange (DDI), which is a fairly new concept that makes traffic flow more efficient, and the first of its kind to be constructed in Austin. When the bridge construction phase is complete, the DDI will be implemented.
Once both Slaughter Lane phases are completed, the bridge at the intersection at LaCrosse will be constructed in one phase by closing LaCrosse and detouring traffic around.
The project's estimated start date is January 2018 with estimated completion in July 2020. The reconstruction of each bridge has milestones associated with them that include penalties for exceeding the timeline milestone, as well as bonuses for early completion. TxDOT used innovative design concepts to accelerate construction which utilize precast bridge elements that will aid in meeting the milestones.