Upper Hudson River Valley Dam Break Model

by Thomas J. Sullivan, Stetson-Dale Architects &, Engineers, Utica, NY, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

In order to determine areas of inundation due to the failure of Conklingville Dam, a dam break analysis was performed, and the resulting outflow hydrograph was routed through the downstream river valleys of the Sacandaga and Hudson Rivers in New York. The routing techniques involved dynamic reservoir and river routing through seventeen dams and 105 miles of river using the National Weather Service (NWS) DAMBRK Model. Detailed hydraulic computations and river cross-sections were input into the NWS Model using a data preprocessor developed by the Hydraulic Engineering Center (HEC) of the U. S. Army Corps of Engineers. The PMF Analysis, while yielding higher peak flows, had the same general characteristics as the Normal Pool Analysis. Unique characteristics of the project, such as the size of the computer model and study area, the magnitude of the peak dam break outflows, and the timing of subsequent dam breaches on a heavily developed river are brought to light.

Subject Headings: Dam failures | Computer models | Rivers and streams | Hydraulic models | Flood routing | Dynamic models | Simulation models | Hudson River | New York | United States

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