HEC-FIA Model Setup

A well-prepared HEC-FIA model is essential for accurately computing economic losses based on flood inundation data. However, many HEC-FIA models developed during early CWMS implementations have received minimal updates since their creation. As a result, these models often require refinement before they’re ready for Flood Damage Reduced (FDR) computations.

Before running FDR analyses, it’s important to enhance and modify your existing model—not only to support the FDR workflows, but also to ensure it reflects the most current structure inventory data available.

This section will guide you through:

• Updating the structure inventory
• Adding shapefile boundaries for aggregated results
• Setting up new alternatives for both FDR computation approaches

Taking time to modernize your HEC-FIA setup ensures more reliable, transparent, and defensible FDR results.