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TxDOT proposes operational improvements on I-10 at the SH 46/FM 78 interchange and the ongoing environmental study for this project in Seguin.

The project would involve constructing a continuous westbound frontage road from SH 46 to SH 123B, and a partial eastbound frontage road near SH 123B.

Proposed Improvements

  • Keeping current mainlanes with:
    • Four 12-foot travel lanes (two in each direction)
    • Two 4-foot inside shoulders
    • Two 10-foot outside shoulders
  • Constructing new frontage roads
  • Adding curbs and sidewalks along outside of frontage roads
  • Adding 15-foot outside frontage road lanes for shared use (auto and bicycle)

More Information

Contact Us

Public Information Office
San Antonio, TX 78229
(210) 615-5839