In this study, HRI was commissioned by th Egyptian Electricity Holding Company (EEHC) to conduct hydraulic and circulation study to investigate the impact of the proposed Beni Suef Power Plant steam unit with 1600 MW on the recirculation of the effluents from the plant outfall to its intake, water temperature in the plant vicinity and navigation safety. A two dimension hydraulic numerical model was carried out to account for the temperature distribution in the plant vicinity and the plume transport induced by the river flow condition and the temperature variation. Three model scenarios were setup to account for the different flow regime in the river, minimum, dominant and maximum discharges. The water levels associated to theses discharges were obtained from available data at HRI. The results of the model simulations show the followings: • No recirculation of the effluent discharge from Beni Suef P.P. to its intake for all scenarios. • The excess of the water temperature above the ambient water outside one third of the total river width in the plant vicinity is less than 3 degrees for Minimum, Dominant, and Maximum river flow condition. • The flow pattern obtained from the model scenarios show that the cross flow velocities in front of the intake/outfall structures is less than 0.3 m/s in model scenarios 2 and 3, except in model scenario 1 the area around the outfall which is less than 17 % of the river width. More than 80% of the river width in front of the intake/outfall structure is safe for navigation. • The model results show that, generally the dilution of the plume is good due to the proper selection of the plant site. On the other hand, the dilution is better for the dominant and maximum discharges than the minimum discharge because of the good mixing of the effluents with the fresh water under relatively high discharges.