• 07/16/24: We are aware of the smishing scams regarding outstanding toll charges. The Mobility Authority will never ask for personal information via text and only send texts with account updates and to those who have opted in to QR Code Digital Billing and Electronic Invoices. Please do not click on links or respond to any suspicious messages. To get the most up to date information about your Mobility Authority account, visit or call us at (833) 762-8655. The Mobility Authority works diligently to protect our customers’ data.

Mobility Authority Breaks Ground on 183A Phase III Project with Virtual Celebration

(Austin, Texas) — Today, the Central Texas Regional Mobility Authority (Mobility Authority) Board of Directors celebrated the start of construction on the 183A Phase III Project at the monthly Board of Directors meeting. Due to the ongoing COVID-19 pandemic, the groundbreaking event was held virtually in lieu of an in-person celebration.

The 183A Phase III Project will extend the 183A Toll Road 6.6-miles northward from Hero Way in Leander to north of SH 29 in Liberty Hill. The project includes two tolled lanes in each direction and an adjacent shared use path from Hero Way to Seward Junction Loop.

“It’s a crucial moment for the Mobility Authority and for our region,” said Bobby Jenkins, Chairman of the Mobility Authority Board of Directors. “This project will not only meet the capacity demands that projected growth is sure to bring, but it will also ensure long-term reliability and connectivity.”

The virtual groundbreaking was live streamed for the public to watch and is available to view online. The event highlighted the history of the 183A road, the project’s background, and included contributions by some of the key stakeholders and elected officials who have supported the project through its development.

“We are so excited about 183A Phase III getting going,” said Williamson County Commissioner Cynthia Long. “Our economy and overall quality of life relies on the ability to travel to and from our communities.”

Project completion is expected in 2025. For more information about the 183A Phase III Project, visit


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 constructing the 183A Phase III Project and will soon begin the 183 North Project. For more information about the Mobility Authority, visit

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