Trevallyn Dam (TAS, Australia) in operation on 4 & 7 September 2024

The operation of the Trevallyn Dam spillway (Tasmania Australia) is documented on 4 & 7 September 2024, during a sizeable flood event.
Completed in 1955, the 33 m high concrete gravity dam is equipped with an un-gated smooth chute spillway. The reservoir supplies a hydropower station. During floods, the spillway overflow flows into the Cataract Gorge and into the Tamar River in Launceston.
Acknowledgements
Ms Ya-Hui Chou (Brisbane, Australia)
Ms Jo Morris (Hydro Tasmania)
References
CHANSON, H. (2024). "Self-aeration on large dam spillways during major floods." Journal of Hydro-environment Research, IAHR, Vol. 54, pp. 26-36 (DOI: 10.1016/j.jher.2024.03.002).
COLE, B.A. (2004). “Eight heritage dams in Tasmania and some federal/state issues.” Australian Journal of Multi-disciplinary Engineering, Vol 2, No.1, pp. 63-72 (DOI:
10.1080/14488388.2004.11464722).
HERWEYNEN, R. (2011). “The integrity of old style post tensioned anchors in dams-a real dam safety issue.” Dams and Reservoirs under Changing Challenges, A. SCHLEISS & R. BOES Editors, Taylor & Francis Group, pp. 195-202.
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