Faculty of Natural Sciences and Mathematics, University of Banja Luka , Banja Luka , Bosnia and Herzegovina
Civil Engineering Institute ”IG”, Banja Luka , Banja Luka , Bosnia and Herzegovina
The paper presents the impact of the construction site of a part of the Banja Luka – Doboj motorway, section 1: Banja Luka – Prnjavor, in the settlement of Miloševac, on the quality of water in the rivers Vrbas and Crkvena. Before the construction of a new bridge, the zero state was determined in the direct vicinity and at locations downstream from the construction site in order to have a realistic picture of impacts of the mentioned construction on the quality of surface waters. Comparison of the data acquired by continual monitoring of a significant number of parameters (total 18) during 12 months and their zero state, i.e. their values before the commencement of construction, gives a realistic overview of impacts of the construction site on the quality of water in nearby surface watercourses. In the case that the execution of civil works proves to have a negative impact on the quality of these rivers, the cause of negative impacts shall be determined and additional measures of prevention, reduction or mitigation of impacts shall be taken.
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