The 8-mile stretch of I-35 through Central Austin may be getting its first significant upgrade in 50 years.
On Feb. 27, the Texas Transportation Commission authorized a plan to allocate $4.3 billion to fill the funding gap needed to kickstart what the state calls the Capital Express Central project—which would add two nontolled managed lanes, or carpool lanes, through downtown Austin from US 290 East to SH 71.
The commission would allocate the funds by updating the Texas Department of Transportation’s Unified Transportation Program. The UTP is “neither a budget nor a guarantee that projects will or can be built,” according to TxDOT’s website, but it is a planning tool that signals the projects TxDOT expects to take on in the next 10 years and identifies funding.
Brian Barth, TxDOT’s director of project planning and development, told the commission it could officially add the I-35 central project to the UTP April 30 after a public hearing period. Barth said construction could start in 2025, and the estimated length of the project is expected to be about four years.














