Geothermal System Kept Fort Worth Bridge Ice-Free

A UT Arlington research project successfully tested geothermal heat pumps to prevent bridge icing during winter weather.

Updated on Sept. 23, 2026 in Utilities

Isometric editorial illustration showing a cross-section of concrete bridge infrastructure with embedded geothermal pipes, depicting advanced winter road maintenance technology. — Researchers at the University of Texas at Arlington successfully tested a geothermal heating system that keeps bridge decks ice-free without traditional salt applications. AI Illustration. Upload story photo >

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Should local governments invest in geothermal heating systems for bridge de-icing in your area?

University of Texas at Arlington researchers successfully utilized a geothermal heat pump system to keep a State Highway 180 bridge in Fort Worth ice-free. The technology proved effective during the 2021 Winter Storm Uri.

Why it matters

The system provides a sustainable alternative to traditional salt and sand applications, which often cause chemical corrosion to bridge infrastructure and increase long-term maintenance costs.

The installation at State Highway 180 utilizes four geothermal heat pumps to protect 4,300 square feet of bridge surface. The system circulates 100-degree fluid through pipe loops to maintain a warm deck.

The players

University of Texas at Arlington

This public research university led the design and testing of the geothermal bridge de-icing system.

Texas Department of Transportation

The state agency funded the research to improve driver safety and reduce infrastructure maintenance costs.

The details

Researchers installed foam-core insulation over the pipes to direct heat specifically toward the bridge deck, allowing for automatic activation via a thermostat. The system was tested alongside a mockup on U.S. Highway 287 to ensure performance consistency.

The research project began in 2015.
The first phase of the project concluded in 2016.
Researchers conducted winter testing between 2019 and 2021.
The system successfully maintained an ice-free bridge during 2021 Winter Storm Uri.

Market Landscape

This project represents a shift toward automated infrastructure management that reduces reliance on traditional chemical road treatments. It positions the technology as a potential successor to labor-intensive salt-based maintenance routines currently standard in regional transportation.

Drivers in Fort Worth may encounter safer bridge conditions during winter storms as this technology transitions to wider use. The reduction in chemical usage could also lead to fewer vehicle corrosion issues for local commuters over time.

The takeaway

Geothermal heat pumps offer a viable method for maintaining infrastructure safety during extreme weather events. Implementing such systems could significantly decrease the environmental and financial costs associated with traditional road maintenance.