The authorities of Argentina wish to improve the accessibility of the ports located in the Río de la Plata and upstream to the Paraná River. The water depth in the Río de la Plata is very shallow and did not suffice for vessels to navigate. Therefore navigation channels have been dredged. Ship drafts have increased in time and nowadays there is a need to be able to accommodate vessels with higher drafts. This report provides possible solutions to increase the accessibility by researching the influence of the expansion of these channels.