Every stream or river has instances of extremely augmented flow. Therefore, when designing engineered hydrologic systems, it is imperative that Water Resources Engineers can attempt to understand the temperament of these flows and storms by applying statistics to the recorded flows to determine hydrologic extremes. These values, such as the 100-year flood, assist a designer in enumerating the flow parameters around which a spillway or Diversion weir must be built in order to minimize risk. we will use the HEC-SSP program to analyze the hydrometrological data extremes.