This dataset package contains a curated structural health monitoring (SHM) feature dataset from a cable-stayed bridge case study crossing the Saline River in east-central Italy. The bridge has an approximate total length of 188.6 m, with a main span of approximately 103.4 m and two side spans of approximately 42.6 m. The dataset covers the period from 27 March 2026 to 10 April 2026 and includes pre-event behaviour, the April 2026 hydrometric event, and the immediate post-event response.

The dataset is designed for research reuse, validation of SHM data-processing workflows, and interpretation of bridge structural response in a flood-related hydraulic context. It includes tracked modal parameters, complex mode-shape components, Modal Complexity Factor (MCF) values reported as percentages, RMS and maximum acceleration indicators, displacement transducer means, stay-cable load-cell means, temperature/weather data, and a water-level proxy.

The dataset contains post-processed monitoring features and record-level summary indicators. One row corresponds to one approximately 30-minute monitoring record. Raw acceleration time histories are not included.

The water-level variable is a gauge water-level proxy from an upstream Saline River hydrometric station located approximately 3 km upstream of the monitored bridge. It is not a direct bridge-mounted local hydraulic measurement. During the April 2026 hydrometric event, the upstream gauge recorded a water level above 5 m before water-level data became unavailable. The subsequent missing water-level values are related to temporary unavailability or malfunctioning of the hydrometric station and should not be interpreted as low-water conditions.

Dataset period
27 March 2026 00:00:00 – 10 April 2026 23:59:59

Files included

• CableStayedBridge_SHM_features_2026-03-27_2026-04-10.csv  
  Main monitoring feature dataset.
• CableStayedBridge_SHM_features_data_dictionary.csv  
  Data dictionary describing variable names, descriptions, and units.
• CableStayedBridge_sensor_channel_mapping.csv  
  Mapping between CSV variables, sensor IDs, physical locations, units, and interpretation.
• CableStayedBridge_monitoring_system_layout.png  
  Monitoring-system layout showing locations of load cells, accelerometers, displacement transducers, and environmental sensors.
• README_CableStayedBridge_SHM_event_dataset.txt  
  Dataset documentation.

Sensor layout and channel mapping
The dataset is accompanied by a monitoring-system layout figure and a channel-mapping table. These files link the exported CSV variables to the corresponding sensor IDs, physical locations, measurement components, units, and interpretation.

Missing data
NaN values indicate that a parameter was not available for a given record. For example, if the operational modal analysis procedure did not identify a tracked mode in a given record, the corresponding frequency, damping, MCF, and mode-shape components are reported as NaN. For modes that are not identified, both real and imaginary mode-shape components are set to NaN.

Access and reuse
The dataset is released as a curated, non-sensitive monitoring-feature subset in CSV format to support interoperability and research reuse.

Citation
If you use this dataset, please cite this dataset DOI.

Funding
This work has received funding from the European Union’s Horizon Europe research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 101154316. Views and opinions expressed are, however, those of the authors only and do not necessarily reflect those of the European Union or the European Research Executive Agency (REA). Neither the European Union nor REA can be held responsible for them.