In the master's thesis we present the process of evaluation, redesign, and reconstruction of heavily damaged hydraulic structures – check dams on torrential Presušnik watercourse, that springs up on southern slopes of Karavanke mountain range. We identified several potential solutions, quantified their applicability to estimate the optimal solution. In the thesis we describe the entire workflow; at first, we define and present the existing situation with graphical representations and technical details, followed by identification of critical points that must be considered in the design process. In the next stage we prepared and analyzed the input data, e.g., such as flood wave lag time, extreme rainfall analysis, surface runoff modeling. After completing the analysis of the available data, we were able to determine three possible reconstructions methods, for each of them we identified their advantages, disadvantages, and possible limitations for the construction. After reviewing factors such as durability, safety, and reliability, the optimal solution proved to be the decommissioning of the existing old check dams and the construction of new ones. The final chapters are devoted to the design of new dams and auxiliary structures, stability analysis, and placement of the elements in nature. The design of new buildings is shown on technical drawings, and area plans. In the end we provide the technology of construction for the check dams.
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