Question: how wide and deep is the euphrates river

title: Euphrates
text: The Hindiya Barrage on the Iraqi Euphrates , based on plans by British civil engineer William Willcocks and finished in 1913 , was the first modern water diversion structure built in the Tigris -- Euphrates river system . The Hindiya Barrage was followed in the 1950s by the Ramadi Barrage and the nearby Abu Dibbis Regulator , which serve to regulate the flow regime of the Euphrates and to discharge excess flood water into the depression that is now Lake Habbaniyah . Iraq 's largest dam on the Euphrates is the Haditha Dam ; a 9 - kilometre - long ( 5.6 mi ) earth - fill dam creating Lake Qadisiyah . Syria and Turkey built their first dams in the Euphrates in the 1970s . The Tabqa Dam in Syria was completed in 1973 while Turkey finished the Keban Dam , a prelude to the immense Southeastern Anatolia Project , in 1974 . Since then , Syria has built two more dams in the Euphrates , the Baath Dam and the Tishrin Dam , and plans to build a fourth dam -- the Halabiye Dam -- between Raqqa and Deir ez - Zor . The Tabqa Dam is Syria 's largest dam and its reservoir ( Lake Assad ) is an important source of irrigation and drinking water . It was planned that 640,000 hectares ( 2,500 sq mi ) should be irrigated from Lake Assad , but in 2000 only 100,000 -- 124,000 hectares ( 390 -- 480 sq mi ) had been realized . Syria also built three smaller dams on the Khabur and its tributaries .