Three Gorges Dam Water Discharge: 2025 Operation to Control Water Levels

The 2025 water discharge at the Three Gorges Dam has begun to reduce the reservoir level and prevent flooding downstream. This is a critical hydrological operation designed to safely regulate the Yangtze River’s flow. During the operation, over 10,000 cubic meters per second of water passed through the dam gates, marking a significant event for environmental management and navigation safety. Experts emphasize that timely water management protects riverside cities and communities. The Three Gorges Dam water discharge is a key indicator of the reservoir’s operational efficiency.

Why the Water Discharge Was Needed

The main objectives of the water discharge are to maintain a safe reservoir level, prevent floods, and ensure safe navigation. In 2025, the water level in the Yangtze River basin reached a critical point following heavy rainfall, prompting authorities to open the gates. This proactive approach reduces risk for urban areas and preserves the integrity of the dam infrastructure.

Discharge Volumes and Technical Details

Flow through gates: 10,000 m³/s
Total water released per day: approximately 864 million m³
Gate operation time: 8:00 AM to 8:00 PM

This controlled operation ensures that water is released efficiently while minimizing risks downstream.

Impact on Ecology and Communities

Controlled water release helps prevent shoreline erosion, protects water intakes, and safeguards civil infrastructure. At the same time, measures are taken to minimize disruption to local flora and fauna, maintaining ecological balance in the river basin. Residents and communities along the river are monitored and informed to ensure safety.

Safety Measures and Monitoring

Hydrologists and dam operators continuously monitor water levels and flow speed. Digital monitoring systems track all critical metrics, and local authorities coordinate to alert residents if necessary. This high level of oversight ensures that the water discharge is both effective and safe for surrounding communities.

Historical Data and Previous Discharges

2024 discharge: April 15, 9,500 m³/s
Average annual discharge volume: 4.2 billion m³
Minimum post-discharge water level: ensures safe navigation for up to six months

These historical figures demonstrate the dam’s long-term operational planning and flood prevention strategy.

FAQ

Why is the Three Gorges Dam discharge not performed on the same date every year?
Discharge timing depends on rainfall, river inflow, and flood forecasts, which vary annually.

How does the water discharge affect riverside cities and residents?
Controlled discharge reduces flood risk, protects infrastructure, and minimizes danger to local populations.

How is the discharge volume determined?
Volume is calculated based on current reservoir levels, rainfall forecasts, and navigation safety requirements.

What safety measures are in place during the discharge?
Continuous monitoring, resident notifications, expert oversight, and coordination with local authorities ensure a safe operation.