o:1050 River network modelling to improve understanding of complex interactions between river environment and highway design en Abstract: Highway planning is a complex task with many challenges since the interaction of this very long structure with rivers, streams and other structures on riverbanks is inevitable. Highway crossings design poses a special challenge to experts and requires detailed hydrological and hydraulic analyses to define the best solution. A generally accepted approach is to use state-of-the-art hydrological, 1D and 2D hydraulic models to better understand the interaction of the highway and rivers, and define the scope of works and measures that will minimize the effects of highway construction on the water regime. A very important first step in this modeling process is the hydrological analysis, which is needed to define different flood scenarios. This paper presents the hydrograph computation methodology, which includes the application of the coupled hydrological model HEC-HMS and the hydraulic model 1D HEC-RAS. The methodology can be used to create many scenarios where a large number of parameters (precipitation, soil moisture, etc.) are varied on the large basin area, delineated into many subbasins. The paper also presents the results of the methodology applied for the Morava Corridor design. 1552100 978-86-82565-55-0 2022-11-21T07:54:34.331Z 44 no 46 Vladislava Bartoš Divac Institut za vodoprivredu "Jaroslav Černi" 0009-0004-4908-859X Nikola Milivojević Institut za vodoprivredu "Jaroslav Černi" person 0000-0001-5330-1219 Marija Milovanović Institut za vodoprivredu "Jaroslav Černi" person 0000-0003-3449-8647 Nevena Cvijanović Institut za vodoprivredu "Jaroslav Černi" person 0000-0002-4081-8013 Ognjen Prohaska Institut za vodoprivredu "Jaroslav Černi" person application/pdf 10878811 https://unilib.phaidrabg.rs/o:1050 no yes 1 70 92000004 71A04 Contemporary Water Management: Challenges and Research Directions, Proceedings of the International Scientific Conference in the Honour of 75 Years of the Jaroslav Černi Water Institute, October 19-20 2022, Belgrade 159 174 Jaroslav Černi Water Institute 2022 Received: September 16, 2022 Revision: September 22, 2022 Accepted: September 27, 2022