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I-35 Capital Express Central


The I-35 Capital Express Central project proposes to add two non-tolled managed lanes in each direction along I-35 from US 290 East to SH 71/Ben White Boulevard. Managed lanes are proposed in high-congestion areas where right of way is limited. These lanes are designed to provide a less congested route than adjacent general-purpose lanes during peak periods for qualifying vehicles. Managed lanes control access by placing restrictions on use. TxDOT is evaluating a variety of design options to add the non-tolled managed lanes. The project also includes additional safety and mobility improvements. Visit our new I-35 Capital Express Program website for the most up-to-date information on this project.

Need & Purpose

  • Improve safety and mobility

Project Description

  • Add two non-tolled managed lanes in each direction
  • Reconstruct intersections and bridges, increasing bridge clearances and east/west mobility
  • Improve bicycle and pedestrian accommodations along I-35 frontage roads and at east/west crossings


  • Project development funded by TxDOT and CAMPO


  • Finalized schematic and environmental study: anticipated late 2023
  • Final design and contractor selection: anticipated late 2024
  • Anticipated construction start: late 2025


Project Vicinity Map

I-35 from from US 290 East to SH 71 map


Public Information Officer
(512) 832-7000

TxDOT Austin District
P.O. Box 15426
Austin, TX 78761-5426

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