Case Study: Hunter Water improves dam safety monitoring with Rezatec

Hunter Water boosts dam monitoring with Rezatec, detecting 1–2 mm ground movement

Hunter Water, a state-owned corporation providing water services in New South Wales, Australia, faced a significant challenge in monitoring the structural integrity of its 5-km-long Grahamstown Dam embankment. Traditional visual inspections were impractical and provided no measurable data, while drone surveys lacked the required millimetric accuracy. Hunter Water partnered with Rezatec to find a data-led solution for accurately tracking trends and identifying emerging problems.

Rezatec implemented a geospatial analytics solution using Synthetic Aperture Radar (SAR) and multispectral data to monitor ground motion and vegetation health. By establishing a baseline of normal behavior from historical data, the system pinpoints anomalous activity. Hunter Water receives monthly updates via an online portal, enabling them to direct resources effectively. The solution provided by Rezatec delivers highly accurate movement detection of 1-2mm, a significant improvement over previous methods, greatly enhancing the resilience and safety management of the dam.

Hunter Water