![]() As such, it has the potential to replace the FLDWAV and DAMBRK. The use of the alternative HEC-RAS could save time and resources. A dam break analysis module has been added to HEC-2 and renamed the HEC-RAS which offers similar modeling capabilities to the DAMBRK and FLDWAV models for simulating flood hydrographs and flood wave propagation in river channels located downstream of a breached dam. The HEC-RAS is an upgraded version of the former HEC-2 model used for the assessment of river floodplain inundation. However, another popular hydraulic model has been introduced. For several years, the standard programs that have been used by the national weather service (NWS) for dam break flood simulation were the FLDWAV and DAMBRK models. Dam safety analysis also provides the information needed to make flood inundation maps and emergency preparedness plans (EPP) for dams that present a risk to human safety. ![]() Dam break analysis is conducted as a routine dam safety assessment in determining the incremental hazard potential (IHP) that would occur in the event of a dam failure.
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