Tabqa Dam
After the completion of the Tabqa Dam, Syria built two more dams in the Euphrates, both of which were functionally related to the Tabqa Dam. The Baath Dam, located downstream from the Tabqa Dam, was completed in 1986 and functions as a floodwater control to manage the irregular output of the Tabqa Dam and as a hydroelectric power station. The Tishrin Dam, which functions primarily as a hydroelectric power station, has been constructed south from the Syria–Turkey border and filling of the reservoir started in 1999. Its construction was partly motivated by the disappointing performance of the Tabqa Dam. The implementation of a fourth dam between Raqqa and Deir ez-Zor – the Halabiye Dam – was planned in 2009 and an appeal to archaeologists was released to excavate sites that will be flooded by the new reservoir.