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I-35 from SH 29 to Westinghouse Road


Construction of the northbound frontage road and ramp improvements closed a gap in the frontage road network on the northbound side of I-35 from SH 29 to Westinghouse Road.

Need & Purpose

  • Improve safety and mobility

Project Description

  • Completed continuous one-way frontage roads
  • Reconfigured and relocated ramps
  • Northbound frontage road between SH 29 and Southeast Inner Loop Drive
  • Auxiliary lane, or extended entrance/exit lane, to the existing northbound frontage road exit
  • Extended entrance lane to the northbound mainlane
  • Elevated U-turn lane north of RM 2243
  • Sidewalks between Southeast Inner Loop Drive and Westinghouse Road


  • Construction funded by Williamson County Road Bonds and TxDOT Pass Through Finance Program
  • Construction cost: $20 million


  • Finalized schematic and environmental documentation: August 2012
  • Begin Plans, Specifications and Estimates (PS&E): April 2006
  • Construction letting: November 2012
  • Construction start: April 2013
  • Construction completion: November 2015

Project Vicinity Map

SH 29 to Westinghouse Road map


Public Information Officer
(512) 832-7000

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

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