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Today floods represent a threat to many urban areas. People have always preferred to construct homes along watercourses or near the sea, in lowland areas which are threatened by floods. Among these areas we can also find the south west part of Ljubljana, where a lot of people have settled since the middle of the last century. This area has always been at risk of flooding, but the people who settled there probably did not know that or just ignored that fact. Now the plan is to resolve this problem. There are plans to construct flood control reservoirs in municipalities Dobrova – Polhov Gradec and Horjul and to regulate river channels Mali graben and Mestna Gradašĉica, which will provide flood safety from floods which occur every 100 years or less. People of municipalities Dobrova – Polhov Gradec and Horjul strongly oppose the realization of the planned project and they are willing to take all the options available to prevent the construction of flood control reservoirs. The research work describes the planned project of constructing flood control reservoirs in municipalities Dobrova– Polhov Gradec and Horjul, including the reasons why the residents do not agree with realisation of this plan and how the residents of municipalities Dobrova – Polhov Gradec and Horjul are informed of the measures, which take place during and after a flood. In my research work I made an economic analysis which shows the influence of flood control. Poplave dan danes ogroţajo veliko urbaniziranih površin. Ljudje se ţe od nekdaj najraje naseljujemo v niţinskih predelih, ob vodotokih ali morjih. Zaradi tega je vedno veĉ prebivalstva na obmoĉjih, ki so poplavno ogroţena. Med temi obmoĉji najdemo tudi Viĉ in Kozarje v središĉu Slovenije. Na omenjenem obmoĉju se je od sredine prejšnjega stoletja naselilo veliko ljudi. To obmoĉje je ţe od nekdaj poplavno ogroţeno, vendar to pri naseljevanju ni bilo upoštevano, oziroma v ĉasu naseljevanja ljudje najverjetneje niso pomislili na nevarnost poplav. Sedaj je v naĉrtu rešiti to teţavo, naĉrtovana je izgradnja zadrţevalnikov poplavnih voda v obĉinah Dobrova – Polhov Gradec in Horjul ter ureditev Mestne Gradašĉice in Malega grabna, ki bi jugozahodnemu delu Ljubljane zagotovila poplavno varnost pred poplavnimi vodami s 100 letno povratno dobo in manj. Raziskali smo tudi izgradnjo razbremenilnika, ĉišĉenje struge malega grabna, zagotovitve treh premostitev ter vzpostavitev vodomernega sistema, ki bo vkljuĉeval videonadzor. Najprej smo raziskali poplavno obmoĉje za katerega smo se odloĉili (Viĉ) z opisom vseh treh najveĉjih poplav. Osredotoĉili smo se predvsem na vodogradbene protipoplavne ukrepe in preuĉili pet ukrepov, za konec pa predstavili še ukrepe, ki jih lahko za lastno varnost pri poplavi naredi vsak posameznik.