Tag: HEC-RAS

Common Sense Keeps Dam Break Models in Line

By Ellen Faulkner, PE Dam safety studies often involve the use of numerical models to assess the flooding that could occur from a theoretical failure of the dam. These models provide useful information, but also abundant opportunity for frustration, excessive analysis costs, and misleading results. In my 30 years of working with the HEC-RAS model… Read More »

HEC-RAS Software: How Math Mitigates Flooding

In this City of Loveland, Colorado, map, the red line shows the HEC-RAS modeled 100-year floodplain that Ayres Associates completed in 2005. The yellow line shows the extents of the 2013 major flood, as measured by the City of Loveland. By John Hunt, Senior Hydraulic Engineer When it comes to 1-dimensional open-channel hydraulic analysis, the… Read More »