Abstract
This report evaluates the feasibility of 3D scanning technologies, including LiDAR, terrestrial laser scanning (TLS), and UAV photogrammetry, for improving bridge inspection practices. The study identifies challenges in adopting these technologies, particularly for detecting corrosion, section loss, and deformation in steel girders and other critical structural components. A framework is developed to integrate 3D scanning data with defect detection and structural analysis tools, ensuring compatibility with existing bridge inspection and asset management systems. The report provides practical guidelines for optimizing scanning strategies, data processing workflows, and implementation procedures to support Indiana’s bridge inspection practice. The proposed framework is designed to improve inspection accuracy, enhance efficiency, reduce field inspection time, and support data-driven decision-making for bridge maintenance and rehabilitation planning.
Keywords
3D scanning technology, bridge inspection, UAV photogrammetry, LiDAR, terrestrial laser scanning
Report Number
FHWA/IN/JTRP-2025/16
SPR Number
4731
Sponsoring Organization
Indiana Department of Transportation
Performing Organization
Joint Transportation Research Program
Publisher Place
West Lafayette, Indiana
Date of Version
2025
DOI
10.5703/1288284317880
Recommended Citation
Kang, K., Xiao, J., Hu, J., Kanakamedala, D. S. C., Seo, J., & Varma, A. (2025). Feasibility of 3D scanning technology for bridge inspection and management (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2025/16). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284317880
SPR-4731 Technical Summary