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The works proposed for this investment objective are described in the Feasibility Study – scenario 1, attached to the award documentation, which is an integral part of it. The feasibility study proposes the construction of an underground passage that will cross over the CF 416 and CF 418 railway line needed to smooth traffic flow on DJ 172. The execution of a new lower passage is proposed at km 25+805, skew to the railway track, with a skewness of 24°, consisting of reinforced concrete elements, with a length of 17.00 m (of which 11.00 m covered) + ramps with a length of 122.74. Thus, to achieve the investment objective, the following types of works are proposed: - Demolition works for existing constructions (road structure, tracks, etc.) - Works for collecting rainwater - Works for diverting networks; - Works for carrying out the carriageway portion - Works for carrying out the underground passage - Works for arranging public lighting, power supply with electricity, traffic monitoring systems - Works for arranging safety spaces; - Works regarding traffic safety (road markings, road signs, parapets and other elements), - Works for restoring the natural setting - Works regarding…

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