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Construction Updates

Construction Advisory: Drainage Improvements 



Tuesday, December 2 - Wednesday, December 3 from 6:00 a.m. to 4:00 p.m.

  • Single lane closure on the 183A northbound mainlines between Lakeline Mall Drive and Lakeline Boulevard.
  • Single lane closure on the 183A northbound outside shoulder between Lakeline Mall Drive and Lakeline Boulevard. Adjacent ramps to remain open. 

 Construction Advisory: Road Leveling Project



Monday, December 1 - Tuesday, December 2 from 8:00 p.m. to 6:00 a.m.

  • 2 lane road closure on the southbound mainlines just south of the South Brushy Creek Bridge. The southbound exit ramp to Brushy Creek Road will remain open. 

 Construction Advisory: US 183/183A Intersection Project

Work began the week of November 17, 2014 on the improvement project for the US 183/183A Intersection in Williamson County. The project will entail pavement widening, drainage improvements, signal adjustments and minor new road construction.  The improvements will facilitate smoother and safer turning movements and improve access across the southbound lanes.  Motorists should be aware that the project will consist of day and night time lane closures during the construction period.  The project is expected to be finished in the Fall of 2015.



Week of November 23, 2014

  • No anticipated lane closures for the next several weeks. 


183A Toll Shield Construction Advisory: 183A Frontage Road Resurfacing Project

 Work began the week of July 28, 2014 on an asphalt maintenance project on the north and south  bound frontage lanes of 183A in Williamson County. The project will remove and replace the top two  inches of the 18-inch thick pavement along the frontage roads. The resurfacing process is expected to be finished by the end of November 2014. While some work will occur at night to minimize disrupting traffic, motorists should be aware of daytime lane closures during the construction period. 



Wednesday, November 26 from 9:00 a.m. to 6:00 p.m. 
  • Various lane closures on the 183A southbound frontage road from New Hope Drive to RM 1431. 
  • Sections of Brushy Creek Loop will be closed. Traffic will be maintained with flagging allowing single lane travel through the work zone. 
Friday, November 28 - Saturday, November 29 from 9:00 a.m. to 6:00 p.m. 
  • Various lane closures at the intersections of 183A at RM 2243, Crystal Falls Parkway, and New Hope Drive.  
Monday, December 1 - Tuesday, December 2 from 7:00 a.m. to 6:00 p.m. 
  • Single lane closure on the 183A northbound frontage road from RM 1431 to New Hope Drive.
  • The southbound U-turn at New Hope Drive will be closed. 


 MoPac Improvement Project logo

The Mobility Authority is constructing Express Lanes on MoPac. Click here for construction alerts. 
To stay informed on your mobile device, Download the MoPac Smart phone App.
290 Manor Toll Shield
The Mobility Authority recently completed primary construction of the Manor Expressway in eastern Travis County. For additional construction updates, click here.