32.7 Million Cubic Meters of Water Will Be Lost Due to Channel Istanbul

channel istanbul project will affect the climate balance of the region
channel istanbul project will affect the climate balance of the region

According to the Environmental Impact Assessment (EIA) report prepared for the Kanal Istanbul project, Istanbul will suffer an average annual loss of 32.7 million cubic meters of water. In the EIA Report prepared by the Ministry of Transport, this water loss is planned to be compensated with water from the Melen Dam. The construction of the Melen Dam, which is still under construction, was on the agenda of the public with deep cracks in its body.

SözcüAccording to the report of Özlem Güvemli; ”The Environmental Impact Assessment (EIA) Report prepared by the Ministry of Transport and Infrastructure and finalized was announced to the public on 23 December by the Ministry of Environment and Urbanization.

The report will remain suspended for 10 days for public opinion and suggestions. The EIA Report prepared by the Ministry included remarkable data on how the project will affect the Istanbul water resources.

In the report, it was emphasized that Sazlıdere Dam, which will be canceled due to the Canal Istanbul Project, will lose 30 million cubic meters of water annually, with an annual loss of 2.7 million cubic meters and 32,7 million cubic meters of water due to the loss in Lake Terkos.

This water loss; It is stated that it will be met by Melen Project, which is being built in stages and will provide Istanbul with 1.08 billion cubic meters of water annually. The Melen project “hoped” in the report has been a polemic issue for a while.

IMM President Ekrem İmamoğlu During the parliamentary session on December 9, which he chaired, he showed the photographs of the Melen Dam, which had deep cracks in its body and was announced to be opened 3 years ago, and said, “The reason for the cracks in the project is the wrong choice in the construction.

We asked the government to allocate funds in 2020 to correct the project. However, no budget was allocated for the construction. İSKİ, that is, Istanbulites are paying for the dam, ”and criticized the failure of the dam to be completed.


In the EIA report, it was stated that the project passed through the Sazlıdere Dam, which is used for drinking water supply.

It is stated that 49 percent of the dam, which provides an average of 60 million cubic meters of drinking water annually, that is, approximately 30 million cubic meters of the dam, will be disabled due to the construction of Kanal Istanbul.

In order not to damage the Historic Damascus Bend, it was told that a new dam to be made to the source of the existing historical dam could continue to use 40 percent of the waters coming from the left coast to the Sazlıdere Basin.

In the report, it was noted that with the construction of the Kanal Istanbul Project, 30 million cubic meters of water can not be transferred from Sazlıdere Basin to Istanbul annually, and the use of the new dam will continue to use 19 million cubic meters of water in the basin.


In the last part of the canal route, it was stated that Terkos Lake will enter 5.4 km in the middle range protection area and 2.7 percent of the basin will leave Terkos. In this section, it was stated that there was a 0.8 percent loss of basin due to the Istanbul New Airport, the construction of which has already started. It was emphasized that the loss of basin will be 1.9 percent due to the channel, which means that approximately 2.7 million cubic meters of water per year cannot be used. Thus, with the cancellation of Sazlıdere Dam, Istanbul's water loss will be 32.7 million cubic meters.

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