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I-35 at SH 29


The proposed project includes mainlane and frontage road improvements, intersection bypass lanes, replacing and widening the SH 29 bridge, and bike and pedestrian improvements.

Need & Purpose

  • Improve safety and mobility

Project Description

  • Mainlane and frontage road improvements
  • Intersection bypass lanes
  • Replacing and widening the SH 29 bridge
  • Bicycle and pedestrian improvements


  • Traditional development by TxDOT
  • Construction cost estimate: $88.7 million


  • Finalized schematic and environmental documentation: anticipated late 2021
  • Begin Plans, Specifications and Estimates (PS&E): anticipated late 2021
  • Complete PS&E: anticipated mid-2024
  • Construction letting: anticipated mid-2024
  • Construction start: anticipated late 2024
  • Construction completion: anticipated mid-2026


Project Vicinity Map

SH 29 map


Public Information Officer
(512) 832-7000

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

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