Numerical dam break analyses of Kirazlik&ouml / pr&uuml / Dam are performed under various hydraulic scenarios. Kirazlik&ouml / pr&uuml / Dam is located on the G&ouml / kirmak River near the city of Bartin. The objective of these analyses is to investigate adverse effects of such dam break failure on the regions downstream of the dam. The numerical model used in the simulations is FLDWAV, which is developed by the National Weather Service (NWS) in the United States. It appears that most adversely effected regions are those that are closest to the dam location. The results of these simulations can be used sufficiently to prepare emergency action plans in case of possible failures.