A study was completed to compare flow parameters over a modified ogee-crested spillway which represent an existing project (Al-Dhuloyia Spillway) using a physical model and existing literature. The physical model was constructed by wood with smoothness surface and placed in a test flume. Pressure taps were installed along the entire length of the spillway. Discharge and pressure data were recorded for 10 different flow conditions. Data interpolated from U.S. Bureau of Reclamation and U.S. Army Corps of Engineers design monographs provided discharge and pressure data from the literature. Non dimensional discharge curves are used to compare the results for both physical model and those of literature. Pressures are compared at low, mid, and high flow conditions. Also water surface profile for Al-Dhuloyia Spillway was compared with those of literature and for different discharge condition. It is shown that there is reasonably good agreement between the physical and that those for literature for pressures, discharges and water surface profile.