Hydrotechnical assessment of the flow of the Hnilec river in the town of Gelnica

Abstract

It is important to develop a hydrotechnical assessment of the existing habitat in the river system for potential proposals for flood protection solutions. The basic factors in the assessment are accurate and up- to-date geodetic assessment, terrain reconnaissance, history of the area and hydrological data necessary for the calculation. In the past, minor improvements to the banks of the Hnilec River were conducted in the vicinity of the town of Gelnica, but these were not large-scale improvements to the entire riverbed. A plausible reason for the non-implementation of large-scale modifications is the dense construction of dwellings in close proximity to the riverbed, the confluence of the railway line with the river and road bridges. The objective of the assessment is the evaluation of critical sections, description of threats in the treated area and the possibility of pointing out the improvement of hydrotechnical parameters to mitigate flood conditions. If it will not be possible to apply flood defence measures in the town residential area, it is necessary to point out another potential solution.