Massive Investments Underway to Revamp South Texas Highways

Workers constructing new highways in Texas

San Antonio, Texas, January 26, 2026

The Texas Department of Transportation (TxDOT) is investing billions to upgrade highways in South Texas, aiming to reduce traffic congestion and support trade. Key projects include Loop 195, a new causeway to South Padre Island, and significant upgrades in the San Antonio area. This infrastructure investment reflects Texas’s commitment to modernizing transportation networks for improved safety and economic growth.

San Antonio, Texas

Massive Investments Underway to Revamp South Texas Highways

The Texas Department of Transportation (TxDOT) is investing billions of dollars to upgrade and expand highways across South Texas, aiming to alleviate traffic congestion and boost regional trade.

Key Projects in the Rio Grande Valley

In the Rio Grande Valley, TxDOT has initiated several major projects:

  • Loop 195 Construction: A new 17-mile highway is being built to serve as a relief route for U.S. 83 in rural Starr County. This $240 million project is expected to transform the region’s infrastructure.
  • Second Causeway to South Padre Island: Plans are underway for an additional bridge connecting South Padre Island to the mainland. Estimated to cost between $700 million and $1 billion, this project aims to improve access and support tourism.
  • I-69 Corridor Development: TxDOT is working to connect the Rio Grande Valley to the national interstate system by developing the I-69 corridor, enhancing trade routes and regional connectivity.

San Antonio Area Enhancements

In the San Antonio area, significant upgrades include:

  • Loop 1604 and I-10 Interchange Reconstruction: A $615 million project is underway to rebuild this major interchange, featuring elevated flyover ramps and improved traffic flow. Completion is expected by late 2026.
  • South Texas Parkway Proposal: A proposed 15-mile freeway between I-35 and I-37 aims to enhance connectivity on the South Side, benefiting residential areas and local businesses.

Statewide Infrastructure Developments

Beyond South Texas, TxDOT is undertaking several statewide projects:

  • I-45 Reconstruction to Galveston: The I-45 corridor is being expanded to eight main lanes to accommodate increasing traffic and improve safety.
  • U.S. 287 Interstate Conversion: A feasibility study is exploring converting U.S. 287 into an interstate, potentially enhancing connectivity across the state.
  • Fort Bend Parkway Extension: The extension of the Fort Bend Parkway Toll Road is now open, providing improved access in the Houston-Galveston area.

Conclusion

These extensive infrastructure projects reflect Texas’s commitment to modernizing its transportation network, aiming to reduce congestion, improve safety, and support economic growth across the state.

Frequently Asked Questions

What is the purpose of the Loop 195 construction in Starr County?
The Loop 195 project aims to provide a relief route for U.S. 83 in rural Starr County, enhancing regional infrastructure and supporting local development.
How much is the Second Causeway to South Padre Island expected to cost?
The Second Causeway project is estimated to cost between $700 million and $1 billion, aiming to improve access and support tourism to South Padre Island.
What is the South Texas Parkway proposal?
The South Texas Parkway is a proposed 15-mile freeway between I-35 and I-37 on the South Side of San Antonio, designed to enhance connectivity for residential areas and local businesses.
What is the status of the I-45 Reconstruction to Galveston project?
The I-45 Reconstruction to Galveston project is expanding the corridor to eight main lanes to accommodate increasing traffic and improve safety, with various segments completed and others under construction.
What is the Fort Bend Parkway Extension?
The Fort Bend Parkway Extension is a newly opened segment of the Fort Bend Parkway Toll Road, providing improved access in the Houston-Galveston area.

Project Location Estimated Cost Purpose Status
Loop 195 Construction Starr County, Rio Grande Valley $240 million Provide a relief route for U.S. 83 Under construction
Second Causeway to South Padre Island South Padre Island $700 million to $1 billion Improve access and support tourism Planning phase
I-69 Corridor Development Rio Grande Valley Over $2 billion Connect to national interstate system Ongoing
Loop 1604 and I-10 Interchange Reconstruction San Antonio $615 million Rebuild major interchange with elevated flyover ramps Under construction, completion expected by late 2026
South Texas Parkway Proposal San Antonio Not specified Enhance connectivity on the South Side Proposed
I-45 Reconstruction to Galveston Galveston Not specified Expand corridor to eight main lanes Various segments completed, others under construction
Fort Bend Parkway Extension Houston-Galveston area Not specified Provide improved access Recently opened

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STAFF HERE SAN ANTONIO WRITER
Author: STAFF HERE SAN ANTONIO WRITER

The SAN ANTONIO STAFF WRITER represents the experienced team at HERESanAntonio.com, your go-to source for actionable local news and information in San Antonio, Bexar County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Fiesta San Antonio, San Antonio Stock Show & Rodeo, and Dia de los Muertos. Our coverage extends to key organizations like the Greater San Antonio Chamber of Commerce and United Way of San Antonio and Bexar County, plus leading businesses in retail, insurance, and energy that power the local economy such as H-E-B, USAA, and Valero Energy. As part of the broader HERE network, including HEREAustinTX.com, HERECollegeStation.com, HEREDallas.com, and HEREHouston.com, we provide comprehensive, credible insights into Texas's dynamic landscape.

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