— 55 — 
the old Bahr Shebin, taking from the Damietta branch below the Bahr 
Ferouniah, was built in 1842 by Linant Pasha, with its wing wall 
60 centimetres higher than any previous flood. By 1870 the Damietta 
branch had risen 70 centimetres above the wing wall as measured by 
Linant Pasha. In 1878, though the Damietta branch was relieved by 
the Gizeh breach in the left bank of the Main Nile which drained 
into the Rosetta branch, the flood water surface of the Damietta branch 
at Karanain was 1.50 metres above the wing wall. 
The maximum, minimum and mean floods in the Rosetta branch 
are 6,500, 2,600 and 4,000 cubic metres per second. In the Damietta 
branch they are 4,600, 1,300 and 2,300 cubic metres per second 
respectively. 
