The water storage capacity of Zengwen Reservoir exceeded 194 million cubic meters. Inundation water regime observation indicators

Under the combined influence of low air pressure, southwesterly winds and stagnant fronts, the Zengwen Reservoir, the largest in the country, has experienced nearly 2 weeks of continuous rainfall in the catchment area. The current effective water storage capacity has exceeded 194 million cubic meters. As the water level gradually climbed, the three major water regime observation indicators, such as the anti-siltation tunnel elephant trunk steel pipe-covered structure "ancient Greek building" and the spillway diversion channel platform "dry wasteland", were all submerged and disappeared.

The water level of Zengwen Reservoir bottomed out to below 193 meters at the beginning of this month, and the water storage rate also reached the low point of 9.31%. At that time, three major water conditions observation indicators, including the spillway diversion channel platform, the elephant trunk steel pipe outer structure, and the material processing field turned into a hill hut, all appeared. Later, the front brought abundant water vapor to the catchment area, continuous significant rainfall, and upstream runoff continued to pour in, effectively replenishing water.

With rainfall in the catchment area, the effective water storage capacity of the Zengwen Reservoir exceeded 194 million cubic meters. Compared with the low point, the water level has risen by about 19 meters cumulatively, and the water storage rate has also increased to 43.19%. The water condition observation indicators that have emerged have disappeared again.

On the spillway diversion channel platform in front of the discharge gate below the dam, when the water level drops below 206 meters, the concrete slab will be completely exposed, like a dry wasteland. Upstream of the reservoir area, the world's first anti-siltation tunnel elephant trunk water diversion steel pipe, like the outer structure of the ancient Greek cylindrical building, will gradually emerge when the water level drops below 195 meters. After the water conditions significantly ease, both are gradually submerged.

Although the material processing site with a history of nearly 60 years has not yet been completely submerged, due to the gradual rise in water levels, it has transformed from the original hill hut into an ancient house on the lake. If significant rainfall continues upstream, it may sink into the water again.

The Southern District Water Resources Branch of the Water Resources Department observed that as of 7 o'clock tonight, the water level of Zengwen Reservoir was 211.41 meters, with a water storage rate of 43.19%. Together with the Wushantou Reservoir, the total effective water storage capacity is more than 240 million cubic meters. The water supply in Tainan is currently normal, and water resources are hard to come by. The public is still urged to continue to save water.