Optimum Arrangement of Hydraulic Structure Components for Safe Inland Navigation Long-Term Morphological Changes in the Nile River since High Aswan Dam Construction to Year 2010 CORRELATION BETWEEN COST AND PERFORMANCE OF DRINKING WATER PIPE NETWORK DURING NORMAL OPERATING CONDITIONS Improve the Water Quality in Front of Water Treatment Plants Intakes Improvement of Final Settling Tanks Performance by Using Chemical Additions Magnify Nile Cruise Activities through Nile River HYDRAULIC PERFORMANCE OF PERFORATED PIPES Effect of Sill with Slot on the Hydraulic Jump Characteristics Long-Term Morphological Changes along the 2nd Nile River Reach through Half Century after "HAD" Construction