New Geospatial editing tools coming in HEC-RAS Version 5.1

New geospatial editing tools are currently in development for the next version of HEC-RAS-Version 5.1.  While no date has been set for the release of Version 5.1, it is expected sometime within the next year or two.  But no guarantees!  This will be an exciting new addition to HEC-RAS in that users will no longer […]

Read More

Dam Breach Modeling and the Assessment of the Self Rescue Zone

An interesting and informative paper by Mr. Bruno Neves of Brazil on HEC-RAS dam breach modeling and determining the self rescue zone, as well as the timing for alerting residents of the self-rescue zone.  The concept is tested using HEC-RAS with hypothetical 2D breach scenarios of the Santa Branca Dam in the Paraíba do Sul […]

Read More

Post-Processing: Creating Inundation Maps with very Large Terrain

We often have to deal with very large models covering hundreds of river miles.  The terrain data associated with these models can be equally massive, which can cause memory/processor issues when trying to delineate inundation maps. This post is not concerned with pre-processing our model geometry. Instead, we have a completed model with results we […]

Read More

The Advanced Hydrologic Prediction Service for Chehalis Washington

A great example of where flood inundation maps and accessible flood warning systems can help a community prepare for floods.       Contact:               Brent Bower                                                                      FOR IMMEDIATE RELEASE  206-526-6095 x228                                                           December 15, 2015                                 Flood Inundation Maps to Enhance Flood Forecasts for the Chehalis River People living along the Chehalis River have […]

Read More