16.09.2025 15:51
As of September 15, 2025, the water level in Istanbul's reservoirs has dropped to 34%. The Ömerli Dam has seen its level decrease to 27%, while in some reservoirs, the water level has fallen below 10%. Aerial images have revealed the extent of the drought affecting water sources.
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The insufficient rainfall during the summer months in Istanbul and the temperatures exceeding seasonal norms have brought the water levels in the reservoirs down to critical levels. According to İSKİ data, as of September 15, 2025, the overall filling rate of the reservoirs in Istanbul was measured at 34 percent.
FILLING RATE AT ÖMERLİ DAM IS 27 PERCENT
The filling rate at Ömerli Dam, one of the most important sources of drinking water in the city, has dropped to 27 percent. Aerial images show that the water has receded meters from the dam shores, leaving large areas dry.
DECREASE IN OTHER DAMS AS WELL
The filling rates are recorded as 55.68 percent at Elmalı Dam, 47 percent at Darlık, 40 percent at Terkos, 21 percent at Alibey, and only 8 percent at Kazandere. According to İSKİ data, the filling rate in the reservoirs has decreased by approximately 13 percent in the last month.
AERIAL IMAGES REVEAL THE DANGER
The aerial images of Ömerli Dam clearly show the receding water sources in Istanbul, while experts emphasize that water conservation in the city has become more important than ever.
Here are the aerial photographs;
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