How the Maduru Oya reservoir in Sri Lanka is being spilled

The Maduru Oya Reservoir, located in the Eastern Province of Sri Lanka, is an important water resource that serves both irrigation and hydroelectric power generation. The reservoir is part of the Maduru Oya National Park and is situated near the Oya River.

When the reservoir reaches its full capacity, especially during the rainy season, the authorities may release excess water through the spillway to prevent overflow and ensure the safety of the dam structure. This process is called "spilling," and it is crucial to manage water levels, especially during periods of heavy rainfall.

Spilling typically occurs when water inflow exceeds the storage capacity of the reservoir. The authorities monitor the water levels regularly and issue warnings if there's a risk of overflow. The water is released in a controlled manner, reducing pressure on the dam and preventing any potential flooding downstream.

While the spilling of water may create temporary challenges, such as local flooding, it plays an essential role in maintaining the integrity of the reservoir and the surrounding areas. The event also has an ecological impact, as it can influence local wildlife and vegetation around the reservoir.