Ethiopia’s Tekeze Dam, located at 13°21′ N, 38°45′ E on the Tekeze River, was commissioned in 2009. It is a major infrastructure project with a 300 MW capacity. The dam’s 188-meter-high double-curvature concrete arch design was the tallest in Africa at the time of construction, and is situated in a deeply incised valley formed by Precambrian granite. The reservoir covers 70 kilometers and has a total storage capacity of 9.3 billion cubic meters, including 5.3 billion cubic meters of active storage, making it Ethiopia’s largest manmade lake. Ethiopian Electric Power (EEP), under the Ministry of Water, Irrigation, and Electricity (MoWIE), operates the dam, which intercepts runoff from 44% of the catchment area (66,882 km²) (Annys et al., 2021). Equipped with an underground powerhouse, the Tekeze Dam has four Francis turbines and four generators, each rated at 75 MW (Annys et al., 2020). Besides generating electricity, the dam supports small-scale irrigation, enhancing agricultural productivity along the river and offering potential for future irrigation expansion due to improved water availability in dry seasons (Adera, 2015).