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This dataset contains crack images and their corresponding annotations collected from the wooden structural components of the Lingyan Wind and Rain Bridge, located in Gantang River Park, Lingchuan County, Guilin City, Guangxi Zhuang Autonomous Region. The dataset covers four common types of cracks observed in wooden bridge structures: split cracks, tearing cracks, linear cracks, and shrinkage cracks. All images were captured in real engineering environments, featuring variations in illumination, surface texture, and background interference, fully reflecting the complexity of wooden bridge service conditions.Each image in the dataset is accompanied by a VOC-format (XML) annotation file, enabling its use in crack detection, classification, segmentation, and robustness evaluation tasks. This dataset is intended to support research in structural health monitoring of wooden bridges, intelligent inspection technologies, and computer-vision-based crack identification.