A Travis County-funded feasibility study has found no engineering dealbreakers for a 125 mph passenger rail line connecting Austin and San Antonio, Travis County Judge Andy Brown announced Aug. 20.
The roughly $13.5 billion project would run largely on public right-of-way along SH 130 and I-10, cutting travel time between the two cities to 55-65 minutes, according to county documents.
"Central Texas has studied passenger rail before, and we cannot wait another 30 years to study it again," Brown said in the release.
What you need to know: The line would connect Austin-Bergstrom International Airport to a terminus near downtown San Antonio's Alamodome, with connectivity to the existing San Antonio Amtrak Station, and run independently of freight trains, per the study.
How we got here: Commissioners voted unanimously in October 2025 to hire HNTB for about $125,000 to study SH 130 and I-10 as an alternative to the congested I-35 corridor.
This is a feasibility analysis only, not a funding commitment. Environmental, ridership and financial studies are still needed.