SIMULATED FAILURE OF THE J. PERCY PRIEST DAM AND ITS EFFECTS ON THE METRO-NASHVILLE AREA
The J. Percy Priest Dam in Tennessee is located on the Stones River 6.8 river miles upstream of the Cumberland River and about 20 river miles upstream of Nashville. Some of the most important industrial and business districts in the city are located along the Cumberland River and would be severely threatened by a major flood, as evidenced by the May 2010 floods.
The Watershed Modeling System (WMS) Simple Dam Break model was used to simulate failure of the J. Percy Priest Dam. Using reservoir data, failure parameters, and a digital elevation model of the area, an inundation map was created to show the extent and depth of the flooding. Using this information, we were able to analyze the types of land use, the population, vulnerable systems (such as schools and hospitals), and some of the major landmarks that would be threatened by a failure. Awareness of these potential consequences can aid emergency planners and responders in the event of a catastrophe and help them protect lives and resources.