This page provides information on the Hazus Flood Model, including new release features. This page is intended for Hazus users and other parties interested in using Hazus, specifically the Flood Model for flood mitigation and planning efforts.
Features of the Hazus Flood Model
The Hazus Flood Model allows planners and other practitioners to carry out a wide range of flood hazard analyses, including:
- Studies of specific return intervals of floods (e.g., 100-year return interval).
- Studies of discharge frequencies, including analysis of discharges from specific streams and the exposure to buildings and population from the resultant flooding.
- Studies of annualized losses from flooding.
- Quick Look assessments, which allows the user to quickly evaluate potential flooding from specific flood depths at specific locations.
- What if scenarios, which allow users to evaluate the consequences of specific actions, such as the introduction of flow regulation devices, acquisition of flood-prone properties and other mitigation measures.
The flood loss estimation methodology consists of two modules that carry out basic analytical processes: flood hazard generation and flood loss estimation analysis for coastal and riverine flooding. The riverine flood hazard analysis module uses characteristics, such as frequency, discharge and ground elevation to estimate flood depth, flood elevation and flow velocity (simplified). The coastal flood model determines flood inundation extents, depths, and wave heights using elevation, shoreline characteristics, and regional wave parameters. The flood loss estimation module calculates physical damage and economic loss from the results of the hazard analysis.