Alerts
  • 03/24/25: Due to a recent round of smishing/phishing scams, we are experiencing a higher-than-normal call volume. You can get the most up-to-date information about your Mobility Authority account at PayMobilityBill.com or call us at 833-762-8655 and request a callback.

    We are aware of the smishing/phishing scams regarding outstanding toll charges. The Mobility Authority will never ask for personal information via text/email. You may receive legitimate text messages from the following numbers: 38047, 27974, or 512-575-3160. Please do not click on links or respond to any suspicious messages that aren’t from any of the listed numbers. The Mobility Authority works diligently to protect our customers’ data.

183A Toll Extension Opens

(Austin, Texas) — The principal 5-mile segment of the new 183A Toll extension from Hero Way to SH 29 will officially open to traffic with tolling in place on April 9th.* With continued residential and commercial growth along the corridor, the extended toll road aims to proactively accommodate increased traffic and provide a reliable option for commuters.

With the extended 183A Toll Road, drivers will enjoy almost 16-miles of non-stop travel between Liberty Hill and northwest Austin, now bypassing traffic signals at Hero Way, San Gabriel Parkway, Bryson Ridge Trail, and Whitewing Drive. Drivers who do not wish to use the toll road and pay a toll may continue to use the non-tolled general-purpose lanes of US 183.

“This is a fast-growing corridor in a fast-growing community so this new stretch of 183A Toll will bring much-needed congestion relief to Williamson County,” said James Bass, executive director of the Mobility Authority. “It will serve as a reliable, time-saving option for many commuters; but whether you chose to travel the toll road or not, all folks will experience a safer, easier commute along the corridor.”
The toll rate for a full-length trip on the roughly 5-mile 183A Toll extension is $2.38 for drivers with an electronic tag like TollTag or EZ Tag. For any questions about your electronic tag account, please contact your tag provider. For more information on toll rates, how customers can pay their toll bill, and how to save money with an electronic tag, visit our website.

While the critical components of the new 183A Toll Road will be open to traffic, drivers should note that there remains some roadway construction and other project elements to complete over the next several weeks as part of the 183A Phase III Project. Crews will continue work in the coming weeks to complete the final stretch of the 183A Toll main lanes which will allow drivers to bypass the signalized intersection at SH 29. This is in addition to the non-tolled improvements north of SH 29, the adjacent 7-mile Shared Use Path, and installation of landscaping and other aesthetic components. Until the full project is completed, the contractor will continue to implement necessary closures which will be posted to the 183A Phase III Project Website.

For more information about the 183A Toll Road, visit the www.mobilityauthority.com/traveler-info/open-roads/183a-toll/.
*Dates are subject to change based on weather and other circumstances.

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About the Mobility Authority
The Central Texas Regional Mobility Authority is a local, independent government agency created in 2002 to improve the regional transportation system in Travis and Williamson counties. The Mobility Authority
implements innovative and sustainable transportation options to enhance quality of life and economic vitality in Central Texas. The Mobility Authority operates 183A Toll, 290 Toll, the 71 Toll Lane, the MoPac Express Lane, the 45SW Toll Road, and the 183 Toll Road. The agency is also constructing the 183 North Mobility Project in north Austin. For more information about the Mobility Authority, visit www.MobilityAuthority.com.

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