Author(s): Tomasz Dysarz; Joanna Wicher-Dysarz
Linked Author(s): Tomasz Dysarz
Keywords: Reservoir sedimentation; Flow simulation; SIAM; Stream power; HEC-RAS
Abstract: The purpose of this paper is an analysis of hydraulic condition changes caused by the highway bridge located in the middle of the Stare Miasto reservoir. The analysis is done with respect to the sediment distribution potentials along the reservoir. As it is noticed, the bridge contraction causes disturbances in sediment transport resulting in local erosion and scour formation. The object analyzed, the Stare Miasto reservoir, is located in the Powa river in central part of Poland (Europe). The element splitting the object into main and upper part is a dam located in the upstream. The upper part is used as an element of sediment and water quality protection. In addition the highway A2 is narrowing the active flow cross-section in the central part of the reservoir. The methods used for the analysis include direct measurements of reservoir geometry and computer model simulations. The combination of stream power concept and sediment impact analysis methods (SIAM) is utilized for the purposes of this research.