- NH11A-04: Evaluating Bridge-Adjacent Slope Stability Using a Multi-Resolution Remote Sensing Framework
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NOLA CC
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Ali Khosravi, Assistant Professor (First Author)
Zahra Ghorbani, Auburn University (Presenting Author)
Yasser Maghsoudi, University of Exeter
Raul Velasquez, Minnesota Department of Transportation
Bridge slopes can slowly shift over time due to changes in the ground beneath them, potentially putting public safety and infrastructure at risk. This study focuses on a bridge in Climax, Minnesota, where one side has been moving, raising concerns about long-term stability. Monitoring this type of ground movement can be difficult, especially in areas with heavy vegetation and complex soil conditions. To better understand what's happening, we combined data collected directly at the site—such as soil moisture and ground movement—with satellite images. We used radar data from a European satellite program that is free and publicly available, and applied a technique that tracks very small shifts in the Earth’s surface over time. We also included images with higher detail to better see smaller areas of movement near the bridge. In addition to ground changes, we looked at how rainfall, plant growth, and nearby human activities may be influencing the slope. This approach could help communities across the Midwest and other parts of the U.S. monitor similar slopes in a cost-effective way. By using satellite tools together with local data, we hope to improve early warning systems for ground instability near critical infrastructure.
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