When drivers cross the Judge Jodie Stavinoha Bridge along SH99, most never realize the powerful natural forces at work beneath them. The Brazos River (one of Texas’ most dynamic and unpredictable waterways) has been quietly reshaping its banks for years. What appears to be a calm, steady river from above is, in reality, a constantly shifting system capable of carving deep channels, eroding soil, and threatening even the most robust infrastructure.
But thanks to BGE’s forward-thinking engineering team and a long-standing partnership with the Fort Bend Toll Road Authority, the bridge today stands stronger, safer, and more resilient than ever.
A river that wouldn’t stay still: When Harvey changed everything
Engineers monitoring the Brazos River noticed something troubling: the riverbank near the bridge was slowly retreating. What had once been stable ground was being eaten away by the river’s currents. By 2014, the erosion was impossible to ignore. Then came Hurricane Harvey.
The historic storm didn’t just flood the region; it reshaped it. The Brazos River deepened dramatically in some areas by nearly 20 feet. Scour holes formed around the bridge’s columns, and the river’s path shifted even closer to the structure. The bridge, a critical connector for commuters, freight, and emergency services, was suddenly at risk.
Engineering against Nature
Retrofitting a major bridge over an active river requires a unique, forward-thinking solution. The team faced multiple challenges:
- Hazardous hydraulic conditions
- Unstable soils
- The need to keep SH99 open throughout construction
- Integration of new structural elements into an existing bridge
This wasn’t routine maintenance; it was a complex engineering effort requiring creativity, precision, and resilience.
Engineering the Unexpected: Innovative Solutions for a Moving River
To protect the bridge, engineers designed a series of bold structural enhancements:
- A wall of 10-foot diameter drilled shafts was installed to prevent further erosion and protect the soil supporting the bridge
- New columns were added at the most vulnerable bends
- Massive concrete caps and beams, some as large as 10 by 12 feet, were placed between columns to distribute loads and resist the river’s forces
- Sonar technology mapped scour depths and underwater conditions, guiding precise interventions
These measures didn’t just reinforce the bridge — they reimagined how infrastructure can adapt to a changing natural environment.
Aesthetics and Sustainability
The retrofit was designed to strengthen the bridge while respecting the natural environment and visual character of the Brazos River corridor. Construction activities were carefully sequenced to minimize ecological disturbance, supported by erosion control measures and habitat protection efforts that preserved the surrounding ecosystem throughout the project.
Retrofit elements were intentionally integrated to blend seamlessly with the existing structure, maintaining the bridge’s architectural continuity while incorporating long-life, sustainable materials. These durable composites and reinforced concrete components reduce long-term maintenance needs and environmental impact, ensuring the bridge remains both resilient and environmentally responsible for decades to come.
A model for Future Infrastructure
Delivered on time and within budget, the retrofit exceeded the Fort Bend Toll Road Authority’s expectations. It stands today as a model for how communities can protect critical infrastructure in the face of changing environmental conditions.
The Judge Jodie Stavinoha Bridge Retrofit is more than an engineering project; it’s a testament to foresight, innovation, and the power of partnership. It shows what’s possible when engineers and public agencies work together to safeguard the structures that keep our communities moving.
About BGE, Inc.
For 50 years, BGE, Inc. has served public and private clients as a full-service, multidiscipline engineering consulting firm with integrated capabilities. BGE delivers a broad range of advisory services, technical expertise and innovative, sustainable solutions to support local, regional and national communities as they shape the future of infrastructure. Backed by five decades of civil engineering leadership, BGE partners with clients across the Southeast and beyond to solve complex infrastructure challenges. Explore our services at https://www.bgeinc.com/
