What We’re Building

The Mobility Improvements

  • A new tolled expressway featuring three lanes in each direction
  • An improved non-tolled US 183 with up to three general purpose lanes in each directions
  • A high tech traffic monitoring system for improved traffic management and emergency response.
  • Miles of new bicycle lanes, sidewalks, and shared use paths with connections to the regional trail system
  • Upgrades to the visual appearance of the corridor through aesthetic enhancements and landscaping improvements

The Mobility Vision

The Mobility Authority is dedicated to having real, positive impacts on people’s drive times and quality of life. Central Texas is one of the fastest growing regions in America, and the Mobility Authority is working to create transportation solutions that meet our growing community.

The Purpose of the 183 South Project is to:

  • Improve safety, system connectivity, local mobility and travel times
  • Provide an efficient alternative route to congested local roadways in eastern Travis County


The US 183 corridor from US 290 to SH 71 is one of Austin’s most important arterials. Since US 183 was constructed in the mid-1960s, the roadway has been a four-lane divided highway with minor improvements. As the primary route to and from the Austin-Bergstrom International Airport and points beyond, it attracts more than 60,000 cars and trucks a day.

Since 2011, the Mobility Authority and the Texas Department of Transportation (TxDOT) have been working with agencies and the community to develop a reasonable and feasible approach to improving mobility in the US 183 South corridor to reduce travel times and improve quality of life.

On March 6, 2015, TxDOT approved the project for construction. Find out more about this process on the Environmental Study page.



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