Osmansagar Gates to Be Lifted: Flood Alert Issued for August 20

Quick Summary

• Teh Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB) issued a flood alert for Osmansagar reservoir (Gandipet Lake) on the outskirts of Hyderabad.
• Two gates of Osmansagar will be lifted at 4 p.m.on August 20, 2025, to discharge 226 cusecs of water due to increased inflows from rains in the catchment area.
• As of 2:30 p.m., the current water level in Osmansagar was measured at 1788.60 feet (3.579 TMC) compared to its full tank level (FTL) of 1790.00 feet (3.900 TMC).
• Operations are also underway at Himayatsagar reservoir, which had two gates opened by three feet earlier in the day to release 2034 cusecs.
• The current water level in Himayatsagar stands at 1763.00 feet (2.781 TMC), below its FTL of 1763.50 feet (2.970 TMC).

Indian Opinion Analysis

The decision by HMWSSB to issue a flood alert and manage water levels proactively underscores the importance of reservoir operation during heavy rainfall periods for urban safety and infrastructure management in Hyderabad’s expanding metropolitan limits. With both Osmansagar and Himayatsagar reservoirs nearing their full tank levels due to steady inflows, controlled releases aim to balance flood risk mitigation with preserving sustainable storage.This situation highlights pressing concerns about monsoon preparedness amid rapid urbanization that exacerbates drainage issues downstream from reservoirs like these twin lakes, which play dual roles as flood controls and primary sources for drinking water supplies for Hyderabad.

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