According to the「Safety Evaluation Detailed Instructions (Dam)」, precise safety inspection is carried out for
dams that exceed a certain scale. However, as the Hydrological Safety Evaluation from various evaluation
standards is designed to evaluate the safety of existing dams considering PMF, the evaluation is much less
applicable for most agricultural reservoirs. Therefore, the Hydrological Safety Guidelines for agricultural
reservoirs are expected to be re-evaluated considering the diverse risk factors with the coefficient model and
AHP in this study. The coefficient model has been developed by selecting the hydrological safety
superordinate?subordinate evaluation factors to reflect diverse risk factors of agricultural reservoirs. After
calculating the sum of indicators score for each evaluation factors, validation procedures were performed for
the questionnaire which a panel answered. The practical coefficient has eventually been estimated for the
hydrological safety evaluation considering the diverse risk factors. The conclusions acquired based on the
study done are that both most agricultural reservoirs were classified as flood defense capability is insufficient
and agricultural reservoirs which meet embankment-freeboard standards considering PMF was overestimated.