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The Texas Department of Transportation is constructing approximately 9.5 miles of I-35 from I-410 North to FM 3009 in Bexar and Guadalupe counties, Texas.

The I-35 elevated lanes will provide direct connections to I-410 North and Loop 1604 West. The elevated lanes will provide one high occupancy vehicle (HOV) lane and two general purpose lanes in each direction. The project also includes incidental construction necessary to transition the elevated lanes and connectors with the existing highways including revisions to ramps and frontage roads and accommodations for drainage, utilities, signs, and other highway improvements.


I-35 NEX will:

  • Improve safety and mobility.
  • Address an increase in traffic growth on I-35.
  • Reduce travel time.
  • Serve regional traffic.

Construction of the I-35 NEX project is split into three separate construction phases.

  • I-35 NEX Central (this project)
  • I-35 NEX South
  • I-35 NEX North

I-35 NEX Central Project map

For more information or background on the entire I-35 NEX project please visit TxDOT projects and studies

To learn more visit the TxDOT San Antonio District