[3] Synchronised with the progress of excavation, the inner walls of the tunnel were lined with 30 cm (12 in) thick precast concrete hexagons.
[3] The water tunnel has an average downhill slope of 0.49% through the Gazientep Formation of the Eocene and Oligocene geological period.
[1][2][3][5][6] With its inner diameter of 7 m (23 ft), the water tunnel has a discharge capacity of 90 m3/s (3,200 cu ft/s),[6] which makes it bigger than many rivers in Turkey.
[2][3][5][6] With irrigation by the Suruç Water Tunnel, over 8,000 farmers will be able to produce more profitable agricultural product.
[6] Ministry of Forest and Water Management Veysel Eroğlu stated that its contribution to the country's economy will as much as ₺270 million annually.