The theoretical part of the thesis is based on the review and comparison on typical concrete and reinforced concrete overpasses on our roads. The selection of the total length of the overpass in relation to the obstacle is commented on, i.e. examples of overpasses where the length of the building is strictly adapted to the required free profile under the overpass and examples where the overpass is longer than the given obstacle are compared. In the practical part of the paper, three variants of the overpass through the state road in the plain with the same leveling and height over the obstacle are selected, and the dispositional blueprints are shown by the nanoCAD program. Selected overpasses with two, four and six spans are described in the technical description. The spanning assembly is a simple concrete slab, for a scaffold performance, which translates the county road with service trails. The basic static calculation in the Tower program and the dimensioning of the span assembly of one overpass with four spans were calculated. The cost estimate covers the construction of embankments and all three variants of overpasses, which differ in the number and size of the span. The paper contains: -technical description of denivelation with the explanation of the project task -dispositional drawings of proposed overpass variants in a overview scale - basic static calculation of the span assembly of one variant - dimensioning of the most loaded cross-sections of the span assembly - sketch of span armature - cost sheet of works - a discussion and conclusion aimed at optimizing the length of the overpass - literature.