Approaches to technical and economic substantia-tion of new bridge construction

Problem. Today, the initial project of the bridge may not meet the existing conditions of operation of the structure due to socio-economic and socio-technical developments, which will require the need to increase the level of maintenance of the bridge. Goal. The goal is technical and economic substantiation of the new construction of a bridge across the Chornoguzka River, Golyshiv - Korshovets, in the Lutsk district, Volyn region. Methodology. Calculation of classes of consequences was carried out, engineering and geological surveys were performed. Results. Technical solutions have been developed on the basis of the conducted research. Originality. The work offers both traditional approaches to solving the given problem using modern reinforced concrete structures and the use of progressive technologies using metal corrugated structures. Practical value. The work considers the most rational solutions of the given task with the analysis of the positive and negative sides of the selected ones, which makes it possible to analyze the most appropriate solution.