Model Manipulation on the Fly
At other points in the model, Rod used 2D unsteady flow functionality to show flow movement around and inside property boundaries. The structures on the property: property walls, residence and proposed swimming pool were added to model structural impacts on the surface flow. With GeoHECRAS’s intuitive user-interface, Rod was able to easily manipulate different elements of the model to experiment with moving structures and opening parts of the property wall to divert water. The model was easily reconfigured, and different scenarios generated with minimal inputs. These adjustments could be made instantaneously, accurately and completely on the fly. The analysis was thorough enough that the project was accepted by the PCRFCD without expensive modification of the site plan or removal or alteration of existing walls and structures. GeoHECRAS’s graphic visualizations were easily exported and incorporated into the submitted permit application. Needless to say, the homeowner was extremely satisfied with the cost-effective end result.
“I do a lot of these kinds of projects. If I can do a floodplain analysis for a property owner in less than 3 or 4 hours to show that a future garage isn’t going to be flooded, everyone wins. The speed and tools in GeoHECRAS give me the ability to do these things in an economically feasible way for the benefit of the small homeowner. These homeowners really need you to be fast and economically viable.”
Chris Rod, Project Manager