I-35 at Oltorf Street


The project reconstructs and improves the Oltorf Street interchange from south of Woodland Avenue to Woodward Street. Improvements will include the reconstruction of the Oltorf Street bridge, improved entrance/exit ramps and frontage roads, new extended entrance/exit lanes for mainlanes and ramps, and the addition of north and south U-turns at Oltorf Street. Bicycle and pedestrian accommodations will also be improved along the I-35 frontage roads in each direction within the project limits.

Need & Purpose
  • Enhance safety and improve overall mobility within the project limits
  • Address ramp configurations that do not meet current design standards, including width, length, and weaving distances
Project Description
  • Reconstruct Oltorf Street bridge structure
  • Improve entrance and exit ramps and frontage roads
  • Construct new auxiliary lanes, or extended entrance/exit lanes, for mainlanes and ramps
  • Add U-turns in both north and southbound directions at I-35 and Oltorf Street
  • Improve bicycle and pedestrian accommodations along the I-35 frontage roads in each direction within the project limits
  • Project development funded by TxDOT
  • Construction funded by Texas Clear Lanes Congestion Relief Initiative
  • Construction cost: $42.6 million
  • Public Open House: December 2013
  • Finalized schematic and environmental documentation: fall 2014
  • Begin plans, specifications and estimates (PS&E): December 2014
  • Complete PS&E: July 2016
  • Construction letting: July 2016
  • Construction start: February 2017
  • Construction completion: anticipated mid-2019
Project Activity

Project Vicinity Map

I-35 at Oltorf Street


Public Information Officer

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

(512) 832-7000