TxTag Pay by Mail Pay by Mail Pay by Mail

183A Toll shield

183A is an 11.6-mile toll road operated by the Central Texas Regional Mobility Authority. It extends from northwest Austin through Cedar Park and Leander in northwest Williamson County.

The first section of 183A opened in March 2007. It included a limited-access expressway between RM 620 and New Hope Road and frontage roads from RM 1431 north to the South San Gabriel River. Initial traffic was much higher than originally projected, allowing the Mobility Authority to expedite a 5-mile extension of the expressway from New Hope Road north to San Gabriel Parkway. On April 6, 2012, the 183A Northern Extension opened to traffic.

US 183/183A Intersection Improvement Project

The Mobility Authority construction crews are making improvements at the intersection of US 183/183A in Leander. The project entails pavement widening, drainage improvements, signal adjustments, and minor new road construction of CR 276. It also includes access road reconstruction on the west side of the intersection and stub out connection for the future extension of a new road, Bryson Ridge Trail, on the east side of the intersection. The improvements will facilitate smoother and safer turning movements and will feature a more traditional design for improved access across the southbound lanes. This project is anticipated to be complete in the Fall of 2015. Motorists should be aware that the project will consist of day and night time lane closures during the construction period. The construction contractor will display changeable message signs near work sites which will show critical information about lane closures and detours. 

Click here to learn about construction activities and associated lane closures. Detailed project maps can be found here.

2015 Toll Rates

2015 183A Toll Rates

2015 Toll Plaza Location and Rates Map

183A Toll Rates Map

Toll Plaza Location and Toll Rates Map

Toll Payment Options

183A became an all-electronic/cashless toll road in December 2008. 183A customers can pay their tolls with a TxTag , TollTag or EZ TAG or they can choose to Pay By Mail. Drivers with a tag account get a 25% discount. Pay By Mail customers are billed using a picture of their license plate and are charged a $1.00 processing fee per bill. Pay By Mail is available on all toll roads in Central Texas, although you may receive separate bills depending on which agency operates the road you travel on.

TxTag remains the easiest and most cost-effective way to pay tolls on 183A and other Texas toll roads. Sign up for TxTag and save 25% off the Pay By Mail toll rate. TxTag is available online at www.TxTag.org, at the TxTag Customer Service Center located at 12719 Burnet Road and by calling 1-888-Go-TxTag.

  • Mobility Authority
  • Mobility Authority
  • Mobility Authority
  • Mobility Authority
Latest News RESOURCEs

Traffic Study

CAMPO Adopted 2035 Plan

Sign Up NowRead All News » Stay Connected »

183A Studies






183A toll road has significantly improved travel times and reduced traffic on adjacent roadways including US 183. View detailed information regarding traffic volumes and travel times by clicking here.


Drivers using 183A emit significantly less pollutants associated with global warming and unhealthy ground level ozone. Drivers also use less fuel.

Download the full report
Download the Executive Summary
View Audio Slideshow